ModTech International ConferenceModern Technologies in Industrial Engineering June 17-20, Mamaia, Romania ModTech 2015 The Third International Conference on Modern Manufacturing Technologies in Industrial Engineering Book of Abstracts June 17-20, 2015 Mamaia, Romania 1 ModTech International Conference Modern Technologies in Industrial Engineering June 17-20, Mamaia, Romania ModTech Publishing House Blvd. Carol I, No. 28A, Bl. E4, Sc. B, Et.1, Ap. 6, 700504 Iasi, Romania http://www.modtech.ro Tel.-Fax: 0040. 332. 415 472 E-mail:
[email protected] Director of Publishing House: Professor Octavian Pruteanu Redactor: Associate Professor Constantin Carausu Scientific Referees: Professor Octavian Pruteanu, DHC Professor Traian Gramescu ISSN 2286-4369 Copyright © 2015 All rights are reserved to ModTech Professional Association, Iasi, Romania 2 ModTech International Conference Modern Technologies in Industrial Engineering June 17-20, Mamaia, Romania Content Conference Committes..................................................................................................................... 4 Sponsors........................................................................................................................................... 8 Program Over View ........................................................................................................................ 9 Program Sections............................................................................................................................. 12 Abstracts – Plenary Session............................................................................................................. 19 Abstracts – Section A ...................................................................................................................... 36 Abstracts – Section B ...................................................................................................................... 86 Abstracts – Section C ...................................................................................................................... . Abstracts – Section D ...................................................................................................................... 112 Abstracts – Section E ...................................................................................................................... 209 Abstracts – Section F ...................................................................................................................... 239 Abstracts – Section G ...................................................................................................................... 257 Author Index ................................................................................................................................... 289 3 191 ModTech International Conference Modern Technologies in Industrial Engineering June 17-20, Mamaia, Romania Conference Committees Honorary Presidents Professor Violeta-Vali Ciucur, Ph.D., Rector, Constanta Maritime University, Romania. Professor Octavian Pruteanu, Ph.D., DHC, Vicepresident ModTech Professional Association Iasi, Romania. Professor Jerzy Swider, Ph.D., Director of the Institute of Engineering Processes Automation and Integrated Manufacturing Systems, Silesian University of Technology, Gliwice, Poland. Professor Olexander Minayev, Ph.D., Rector, Donetsk National Technical University, Ukraine. Academician Dr. Hab. Prof. Univ. Ion Bostan Rector, Technical University of Moldova, Republic of Moldova. Presidents Professor Mat. Eliodor Constantinescu, Ph.D., Vice-Rector, Constanta Maritime University, Romania. Professor Dumitru Nedelcu, Ph.D., President of ModTech Professional Association Iasi, Romania. Professor Dr. Hab. inz. Arkadiusz Mezyk, Dean of Mechanical Engineering Faculty, Silesian University of Technology, Gliwice, Poland. Professor Ilia Navka, Ph.D., Vice-Rector, Donetsk National Technical University, Ukraine. Dr. Hab. Prof. Univ. Valerian Dorogan, Vice-Rector, Technical University of Moldova, Republic of Moldova. Presidents of Organizing Committee Associate Professor Ec. Costel Stanca, Ph.D., Dean of Navigation and Naval Faculty, Constanta Maritime University, Romania. Lecturer Ciprian Ciofu, Ph.D., Member of Executive Council of ModTech Professional Association Iasi, Romania. Assistant Professor Marek Placzek, Ph.D., Faculty of Mechanical Engineering, Silesian University of Technology, Gliwice, Poland. Professor Alexander Mikhaylov, Ph.D., Donetsk National Technical University, Ukraine. Dr. Associate Professor Alexei Toca, Dean of Faculty of Engineering and Management in Machine Manufacturing, Republic of Moldova. Scientific Committee Dumitru AMARANDEI, "Stefan cel Mare" University of Suceava, Romania Silvia AVASILCAI, "Gheorghe Asachi" Technical University of Iasi, Romania Andrzej BAIER, Silesian University of Technology, Gliwice, Poland Mihaela BANU, University of Michigan, Ann Arbor, USA Peter BIKFALVI, University of Miskolc, Hungary Radhey Shyam BENIWAL, CSIR-NISCAIR, New Delhi, India Esteban BROITMAN, Linkoping University, Sweden Leandru Gheorghe BUJOREANU, "Gheorghe Asachi" Technical University of Iasi, Romania Konstantinos -Dionysios BOUZAKIS, "Aristotelis" University of Salonic, Greece 4 ModTech International Conference Modern Technologies in Industrial Engineering June 17-20, Mamaia, Romania Ion BOSTAN, Technical University of Moldova, Chisinau, Republic of Moldova Nicolae BÂLC, Technical University of Cluj-Napoca, Romania Florin BLAGA, University of Oradea, Romania Gheorghe BRABIE, "Vasile Alexandri" University of Bacau, Romania Paul Dan BRÂNDASU, "Lucian Blaga"University of Sibiu, Romania Andrzej BUCHACZ, Silesian University of Technology, Gliwice, Poland Doru BARDAC, "Politehnica" University of Bucharest, Romania Ioan CARCEA, "Gheorghe Asachi" Technical University of Iasi, Romania Constantin CARAUSU, "Gheorghe Asachi" Technical University of Iasi, Romania Gabriela CARJA, "Gheorghe Asachi" Technical University of Iasi, Romania Tudor CHERECHES, Military Academy of Bucharest, Romania Ciprian CIOFU, "Gheorghe Asachi" Technical University of Iasi, Romania Violeta-Vali CIUCUR, Constanta Maritime University, Romania Francisco CHINESTA, Ecole Centrale Nantes, France Laurentiu CHIOTOROIU, Jade University of Applied Sciences, Elsfleth, Germany Viorel COHAL "Gheorghe Asachi" Technical University of Iasi, Romania Radu COMANECI "Gheorghe Asachi" Technical University of Iasi, Romania Gheorghe CRETU "Gheorghe Asachi" Technical University of Iasi, Romania Ioan DOROFTEI, "Gheorghe Asachi" Technical University of Iasi, Romania Laurentiu Dan GHENGHEA, "Gheorghe Asachi" Technical University of Iasi, Romania António GONÇALVES-COELHO, University Nova de Lisboa, Portugal JoÃo Paulo DAVIM, University of Aveiro, Portugal George DRAGHICI, "Politehnica" University of Timisoara, Romania Cristian DOICIN, "Politehnica" University of Bucharest, Romania Manuel Alberto M. FERREIRA, ISCTE-IUL, Lisboa, Portugal Catalin FETECAU, "Dunarea de Jos" University of Galati, Romania Hidehiro KAMIYA, TAT, BASE, Tokyo, Japan Natalia KAMANINA, Vavilov State Optical Institute, St. Petersburg, Russia Ziyi GE, Ningbo Institute of Material Technology & Engineering, Chinese Academy of Sciences, Ningbo, China Mihai GOANTA, "Dunarea de Jos" University of Galati, Romania Nil GULER, Istanbul Technical University, Turkey Traian GRAMESCU, "Gheorghe Asachi" Technical University of Iasi, Romania Huran LIU, Zhejiang University of Science and Technology, China Alexandru EPUREANU, "Dunarea de Jos" University of Galati, Romania Cornel IOANA Politechnical Institute, Grenoble, France Romeo IONESCU, "Stefan cel Mare" University of Suceava, Romania Gabriel KOST, Silesian University of Technology, Gliwice, Poland David HUI, University of New Orleans, USA Vasile KRIVTOV, University of Michigan, USA Chris LACOR, Vrije University, Brussels, Belgium Peter LORENZ, University of Applied Sciences Saarbrücken, Germany Nouras LUPULESCU, "Transilvania" University of Brasov, Romania Olexander MINAYEV, Donetsk National Technical University, Ukraine Sarwoko MANGKOEDIHARDJO, Tenth of November Institute of Technology, Surabaya, Indonesia Alexandr MALIARENCO, National Technical University of Belarus, Belarus Sergiu MAZURU, Technical University of Moldova, Chisinau, Republic of Moldova Arkadiusz MEZYK, Silesian University of Technology, Gliwice, Poland 5 Hungary Robert O. Romania Cezar OPRISAN. Romania Nadezda STEVULOVA. France Petrica VIZUREANU. Ukraine Olivera MILOSEVIC. "Gheorghe Asachi" Technical University of Iasi. Romania Serban RAICU. "Lucian Blaga" University of Sibiu. University of California. "Politehnica" University of Bucharest. Berkeley. Military Academy of Bucharest. USA Loredana SANTO. Romania Aurelian VLASE. JWRI. Russia Carol SCHNAKOVSZKY. Technical University of Kosice. Romania Andrzej WROBEL. Bulgaria Alexandru MIHAILOV. Republic of Moldova Pavel TOPALA. Romania Alexei TOCA. Romania Dumitru NEDELCU. Constanta Maritime University. Institute of Technical Sciences. Keio University.N. Constanta Maritime University. Poland Remus ZAGAN. Silesian University of Technology. Silesian University of Technology. Japan Bozena SKOLUD. University of Technology DELFT. Silesian University of Technology. Technical University of Moldova. "Gheorghe Asachi" Technical University of Iasi. Prof. University of Pannonia. Romania Marek PLACZEK. Naval Academy. Netherlands Gabriel VASILE. Slovakia Andrey N. Osaka University. STRELETSKII. Poland Razvan TAMAS. Poland Costel STANCA. University Nova de Lisboa. Spain Mamoru SENNA. Gliwice. "Transilvania" University of Brasov. RITCHIE. Russia Janos SZAVA. Romania Anatolii SUSLOV. Technical University of Briansk. Portugal Ilia NAVCA. Technical University "Gheorghe Asachi" of Iasi. Romania Boyan MEDNIKAROV. "Aristotelis" University of Salonic. Mamaia. Silesian University of Technology. National Technical University of Donetsk. "Vasile Alecsandri" University of Bacau. "Alecu Russo" University of Balti. University of Valladolid. Gliwice. Romania Akos REDEY. "Dunarea de Jos" Unversity of Galati. Veszprem. "Politehnica" University of Bucharest. Romania Marcel Sabin POPA. "Gheorghe Asachi" Technical University of Iasi. Oshawa. UOIT University. Gliwice. Romania Emil OANTA. Lecturer PhD Eng. Romania Remon Pop ILIEV. UTN Donetsk. Moscow. Serbia Sevasti MITSI. "Tor Vergata" University of Rome. Romania Nicolae OANCEA. Greece Corneliu MUNTEANU. Poland Octavian PRUTEANU. Romania António MOURÃO. Romania Constantin OPREAN. Chisinau. Paulica Arsenie. Constanta. Semenov Institute. Constanta Maritime University. Japan Vasile NASTASESCU. Technical University of Cluj-Napoca. Assoc. CNRS. Grenoble. Gliwice. Belgrade. Romania Organizing Committee Constanta Maritime University. Ukraine Makio NAITO. Canada Mihaela PICU. Romania Jerzy SWIDER. PhD Eng. Republic of Moldova Marcel VAN DE VOORDE. N. "Gheorghe Asachi" Technical University of Iasi. Romania Members: Lecturer PhD Danut Argintaru. Romania Viorel PAUNOIU. "Dunarea de Jos" University of Galati. 6 .ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Italy Francisco SANTOS. "Dunarea de Jos" University of Galati. Constanta Maritime University. Varna. Constantin Carausu.Victor Polchenko.D.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Prof. Prof. Petru Stoicev. Email: office@modtech. Constanta.Prof. Assoc. Tiberiu Axinte Tel. Univ. Viorel Goanta. Eng. Iosif Dumitrescu Faculty of Mechanical Engineering of Silesian University of Technology.332.Prof. Demian Usanli. Prof. Republic of Moldova Members: Dr. PhD Eng. Alexei Toca Tel. Ioan Carcea. Assoc. Daniela Deacu.. Assoc.41 54 72. Univ. Prof. Sl. +48 32 237 16 24.Post-graduate student Hanna Dolhykh. Prof. Gheorghe Plesu. Magda Sficlea. PhD Eng. Dr. Head of Base Machines Design. Viorel Paunoiu.Prof. Ph. Donetsk.Post-graduate student Irina Petryaeva. Prof. Adrian Mihai Goanta. PhD Eng. Prof. Eng.Engineer Kulbida Olga Technical University of Moldova. Email: ModTech2013@universitateamaritima. Prof. Alexandra Raicu. Email: marek.ua. Romania: Contact Persons: Assist. mntk21@mail. Valeriu Podborschi. Prof. Tel-Fax: +40. Lecturer Elisabeta Ciortea. Assoc.Prof. Lecturer Mariusz Hetmanczyk.ru ModTech2015 Secretariat. Gliwice.. Assoc. Prof. Ukraine: Contact Persons:Kulbida Olga Tel. Constantin Carausu. Email: tm@mech. Lecturer Michal Majzner. Gabriel Badescu. Prof. Traian Gramescu.md 7 . Radu Comaneci. MSc. PhD. Republic of Moldova: Contact Persons:Assoc. Aurora Catalina Ianasi./Fax: +38 062 3050104. Catalin Fetecau. Corneliu Munteanu. Prof. Prof. Assoc. Ioan Doroftei.Assoc. Assoc.Medvedev Vadim Grubka. Assoc. Valeriu Dulgheru.Univ. Prof. Chisinau. Poland: Contact person: Assistant Prof. Prof. Prof. Prof.pl ModTech2015 Secretariat.. Mamaia. Gliwice. Univ. PhD Eng. Dan Popa. Dr. Prof. Prof. Conference Secretariat ModTech2015 Secretariat. Prof. Liviu Stan. MSc. Prof. Univ. Prof. Romania: Contact person: Assoc.. Head of Department of Materials Technology and Study. Assoc. Prof. Hab. Ukraine Members: Assoc...ro ModTech 2015 Secretariat. Monica Iordache. Iurie Ciofu. Head of Department of Industrial Design and Product. Prof. Assist.utm. Lecturer Dominik Rabsztyn. Donetsk National Technical University. Head of Department of Engineering and Management in Production Systems. Assoc.Univ. PhD Eng. Assoc. Lecturer PhD Eng. Dr. Dr. Assoc. Margareta Coteata. Romeu Chelariu. Roman Grubka. Prof. +40 755 210 720. PhD Eng. Prof. PhD Eng. Prof. Univ. Dr. Sergiu Mazuru.dgtu. Dean of Mechanical and Transports Faculty. Head of Department of Machines and Production Systems. Marek Placzek Tel-Fax: +48 32 237 24 37. Assoc.: +373 22 50 99 50. Prof. Mobile: +48 668 365 737. Assoc. Assoc.placzek@polsl. Tudor Chereches. Laurentiu Dan Ghenghea. Hab. Dr. Prof. Gavril Musca. Mobile: +38 050 6202396. Lecturer PhD Ec. Prof. Felicia Surugiu Professional Association ModTech Iasi-Romania Members: Prof. Lecturer Agnieszka Sekala. Petrica Vizureanu. Prof. Lecturer Andrzej Wrobel. Iasi. Poland Members: Lecturer Katarzyna Bialas. Eng.Prof. Remus Zagan. Head of Department of Machine Manufacturing Technology. +38 062 3010805. Lecturer Piotr Michalski.ro ModTech2015 Secretariat. Eng. Prof. PhD Eng. Email: a_toca@mail. Prof. Viorel Cohal.donetsk. Romania Ion Omocea. Vasile Cartofeanu.. Lecturer Iwona Paprocka. redesignsolutions.nanovea.ro/ http://www.com/ http://www. Mamaia.ro/ 8 . Romania Sponsors http://www.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20.romautomatic. Romania Prof. C48. France 9 TRIP BREAKFAST Flora Hotel Restaurant Sections: A. D13 COFFEE BREAK Sections: C Sections: D.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Germany PRODUCT INNOVATION WITH FIBER REINFORCED CERAMIC COMPOSITES – MANUFACTURING TECHNOLOGIES OF LIGHTWEIGHT STRUCTURES FOR EXTREME OPERATING CONDITIONS Prof. Mamaia. Fiqiri Hodaj. Remus Zagan Constanta Maritime University. E Oral Oral Presentation Presentation Orhideea Room Magnolia 2 10th Floor Room 1st Floor Papers ID: Papers ID: C-60÷C-82 D-15÷D-19 E-23÷E-31 Poster Poster Presentation Presentation Foyer Foyer Magnolia Magnolia 1st Floor 1st Floor C61. Prof. 2015 Friday. B Oral Presentation Magnolia 1 Room 1st Floor Papers ID: A-46÷A-59 B-25÷B-28 Poster Presentation Foyer Magnolia 1st Floor A55 Sections: C Oral Presentation Orhideea Room 10th Floor Papers ID: C-40÷C-59 Poster Presentation Foyer Magnolia st 1 Floor C46. E Oral Presentation Magnolia 2 Room 1st Floor Papers ID: D-11÷D-14 E-15÷E-22 Poster Presentation Foyer Magnolia st 1 Floor D12. D18 C72.C52 Sections: D. June 20. Delft University of Technology. Marcel Van de Voorde. South Korea Prof. Institute of Technical Sciences of the Serbian Academy of Sciences and Arts. Romania PROGRAM OVER VIEW Time 700 800 900 10 00 15‟ 30‟ 45‟ 60‟ 15‟ 30‟ 45‟ 60‟ 15‟ 30‟ 45‟ 60‟ 15‟ 30‟ 45‟ 60‟ Wednesday. Serbia HIERARCHICALLY ORGANIZED FUNCTIONAL MATERIALS PROCESSED THROUGH SOFT CHEMICAL ROUTES Prof. 2015 June 18. C66. Netherlands REVOLUTIONARY DEVELOPMENTS OF NANOTECHNOLOGY. G Oral Presentation Small Orhideea Room 10th Floor Papers ID: F-10÷F-14 G-17÷G-25 Poster Presentation Foyer Magnolia st 1 Floor Sections: F. G29. C51. 2015 BREAKFAST Flora Hotel Restaurant BREAKFAST Flora Hotel Restaurant Plenary Session -Orhideea RoomChairman. Belgrade. F16. Chris Lacor. Rainer Gadow. 2015 15‟ 30‟ 45‟ 60‟ COFFEE BREAK Plenary Session -Orhideea Room- 15‟ 30‟ 45‟ 60‟ Chairman. C74. June 19. C76. National Polytechnique Institute of Grenoble. Vrije Universiteit Brussel. June 17. Olivera Milosevic. IN THE FUTURE “EDUCATION – RESEARCH – INNOVATION – INDUSTRIAL APPLICATIONS” Prof. Constanta. B21 Danube Delta Sections: A. Jae-Ho Jeon Korea Institute of Materials Science. B Oral Presentation Magnolia 1 Room 1st Floor Papers ID: A-31÷A-45 B-17÷B-24 Poster Presentation Foyer Magnolia 1st Floor A40. Dr. Thursday. Belgium EFFICIENT UNCERTAINTY QUANTIFICATION IN ENGINEERING WITH POLYNOMIALCHAOS 1100 12 00 Saturday. A42. University of Stuttgart. G Oral Presentation Small OrhideeaRoom 10th Floor Papers ID: F-15÷F-18 G-26÷G-33 Poster Presentation Foyer Magnolia 1st Floor F15. G31 CLOSING CEREMONY / PAPERS AWARDS General Meeting . C79 Sections: F. C71. C47. “Gh. E Oral Presentation Magnolia 2 Room 1st Floor Papers ID: C-1÷C-19 Papers ID: D-1÷D-5 E-1÷E-7 Poster Presentation Foyer Magnolia 1st Floor D4 Poster Presentation Foyer Magnolia 1st Floor COFFEE BREAK Sections: C Sections: D. OPTOELECTRONIC AND PHOTOVOLTAICS APPLICATIONS Prof. G Oral Presentation 10 Laboratories Tour of the Constanta Maritime University . Welcome addresses -Orhideea RoomPlenary Session -Orhideea RoomChairman. National Taiwan University of Science and Technology. Poland APPLICATION OF FUZZY SYSTEMS TO CALCULATION OF THE HARDENABILITY OF THE STEEL Prof. Hong Seok Park. Taiwan FUNCTIONAL POLYMERS VIA PRECISION POLYMERIZATION: SYNTHESIS. University of Ulsan. Radu Comaneci “Gh. Mamaia. B Oral Presentation Sections: C Oral Presentation Orhideea Room 10th Floor Sections: D. Assoc. Petrica Vizureanu. Romania of ModTech Professional Association Magnolia 1 Room. Asachi” Technical University of Iasi. 1st Floor FACTORS GOVERNING THE GROWTH KINETICS OF INTERMETALLICS AT SOLDER / SUBSTRATE INTERFACE Prof. B Oral Presentation Magnolia 1 Room 1st Floor Papers ID: A-1÷A-15 B-1÷B-8 Poster Presentation Foyer Magnolia st 1 Floor B3 Sections: A.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. South Korea DEVELOPMENT OF INFRARED STACKING PROCESS FOR AN AUTOMOTIVE PART 15‟ 13 00 REGISTRATION Prof. Prof. E Oral Oral Presentation Presentation Sections: F. Wojciech Sitek. Esteban Broitman. Linkoping University. Asachi” Technical University of Iasi. Der-Jang Liaw. Gliwice. Sweden TRIBOLOGICAL ISSUES IN MICROMACHINES Sections: A. Silesian University of Technology. Romania EXPERT SYSTEMS USED FOR THERMAL PROCESSES 1400 1500 1600 1700 1800 30‟ 45‟ 60‟ 15‟ 30‟ 45‟ 60‟ 15‟ 30‟ 45‟ 60‟ 15‟ 30‟ 45‟ 60‟ 15‟ 30‟ 45‟ 60‟ 15‟ 30‟ LUNCH BREAK Flora Hotel Restaurant Opening Ceremony. Romania Prof. G Oral Presentation Small Orhideea Room 10th Floor Papers ID: F-1÷F-4 G-1÷G-8 Poster Presentation Foyer Magnolia 1st Floor F2 Sections: F. Swiss Federal Laboratories for Materials and Technology. Thomas Graule. Romania 45‟ 60‟ Prof. NIMTE. Romania NUMERICAL METHODS FOR TIME-DOMAIN AND FREQUENCY-DOMAIN ANALYSIS: APPLICATIONS IN ENGINEERING 1900 15‟ 30‟ 45‟ 60‟ 15‟ 2000 DINNER Flora Hotel Restaurant 2100 2200 30‟ 45‟ 60‟ 15‟ 30‟ 45‟ 60‟ 15‟ 30‟ 45‟ 60‟ GALA DINNER Flora Hotel Restaurant DINNER Flora Hotel Restaurant 11 . Maritime University of Constanta. Mamaia. Razvan Tamas. Switzerland CERAMIC BASED NANOCOMPOSITES – A PROCESSING CHALLENGE Magnolia 1 Room 1st Floor Papers ID: A-16÷A-30 B-9÷B-16 Poster Presentation Foyer Magnolia 1st Floor A25. C38 Small OrhideeaRoom10th Floor Papers ID: F-5÷F-9 G-9÷G-16 Poster Presentation Foyer Magnolia 1st Floor Prof. China HIGHLY EFFICIENT POLYMER SOLAR CELLS Prof. Chinese Academy of Sciences.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. EMPA. A27. Ningbo. Ziyi Ge. B13 Orhideea Room 10th Floor Magnolia 2 Room 1st Floor Papers ID: C-20÷C-39 Papers ID: D-6÷D-10 E-8÷E-14 Poster Presentation Foyer Magnolia 1st Floor Poster Presentation Foyer Magnolia 1st Floor C28. Esteban Broitman. Romania Program Sections Orhideea Room: Plenary Session / Keynote Speakers Wednesday. 2015 1700-1900 Chairman. Ningbo. Switzerland CERAMIC BASED NANOCOMPOSITES – A PROCESSING CHALLENGE Prof. China HIGHLY EFFICIENT POLYMER SOLAR CELLS Prof. Maritime University of Constanta. Romania Prof. Prof. June 17. Chinese Academy of Sciences. Romania NUMERICAL METHODS FOR TIME-DOMAIN AND FREQUENCYDOMAIN ANALYSIS: APPLICATIONS IN ENGINEERING 12 . Assoc. Thomas Graule. Linkoping University. Sweden TRIBOLOGICAL ISSUES IN MICROMACHINES Prof. NIMTE. Radu Comaneci “Gheorghe Asachi” Technical University of Iasi.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. EMPA. Ziyi Ge. Swiss Federal Laboratories for Materials and Technology. Razvan Tamas. Mamaia. South Korea Prof. Vrije Universiteit Brussel. Serbia HIERARCHICALLY ORGANIZED FUNCTIONAL PROCESSED THROUGH SOFT CHEMICAL ROUTES MATERIALS Prof. Netherlands REVOLUTIONARY DEVELOPMENTS OF NANOTECHNOLOGY. 2015 900-1100 Chairman. Belgrade. Olivera Milosevic. Jae-Ho Jeon Korea Institute of Materials Science. University of Stuttgart. June 18. IN THE FUTURE “EDUCATION – RESEARCH – INNOVATION – INDUSTRIAL APPLICATIONS” Prof. Belgium EFFICIENT UNCERTAINTY QUANTIFICATION IN ENGINEERING WITH POLYNOMIALCHAOS 1100-1115 Cofee Break 13 . Germany PRODUCT INNOVATION WITH FIBER REINFORCED CERAMIC COMPOSITES – MANUFACTURING TECHNOLOGIES OF LIGHTWEIGHT STRUCTURES FOR EXTREME OPERATING CONDITIONS Prof. Rainer Gadow. Institute of Technical Sciences of the Serbian Academy of Sciences and Arts. Marcel Van de Voorde. Delft University of Technology. Dr.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Mamaia. Chris Lacor. Romania Orhideea Room: Plenary Session / Keynote Speakers Thursday. “Gheorghe Asachi” Technical University of Iasi. Prof.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Remus Zagan Constanta Maritime University. France FACTORS GOVERNING THE GROWTH KINETICS INTERMETALLICS AT SOLDER / SUBSTRATE INTERFACE OF Prof. Silesian University of Technology. National Taiwan University of Science and Technology. University of Ulsan. Taiwan FUNCTIONAL POLYMERS VIA PRECISION SYNTHESIS. Fiqiri Hodaj. 2015 1115-1315 Chairman. Romania EXPERT SYSTEMS USED FOR THERMAL PROCESSES 14 . Poland APPLICATION OF FUZZY SYSTEMS TO CALCULATION OF THE HARDENABILITY OF THE STEEL Prof. South Korea DEVELOPMENT OF AUTOMOTIVE PART INFRARED STACKING PROCESS FOR AN Prof. National Polytechnique Institute of Grenoble. Gliwice. Wojciech Sitek. June 18. OPTOELECTRONIC AND APPLICATIONS POLYMERIZATION: PHOTOVOLTAICS Prof. Petrica Vizureanu. Romania Prof. Mamaia. Romania Orhideea Room: Plenary Session / Keynote Speakers Thursday. Der-Jang Liaw. Hong Seok Park. Serbia Assoc. 2015 1530-1730 Oral Presentation Papers ID: A-1÷A-15. Galati. Ceramics and Polymers. 3) Check the day and room of your presentation. Gheorghe Gurau. Poland Secretary: Dr. June 19. June 20. 2015 830-1030 Oral Presentation Papers ID: A-31÷A-45. “Dunarea De Jos”. Smart Manufacturing. Romania Professor Grzegorz Ćwikła. Slovenia Thursday. Virtual Manufacturing. Advances in Nontraditional Manufacturing Processes. Mamaia. Energy Efficiency in Manufacturing. Miloš Vasić. 2015 - 1730-1745 Coffee Break 1745-1930 Oral Presentation Papers ID: A-16÷A-30. A27. University. Elvis Hozdic. 1st floor Poster Presentation: Foyer Magnolia 1st floor A. Silesian University of Technology. Simona Plavanescu. Institute for Testing of Materials. Gliwice. Recycling of Materials Presidents: Prof. B21 1030-1045 Coffeee Break 1045-1200 Oral Presentation Papers ID: A-46÷A-59. Prof. Bio-Materials. Ph. B-9÷B-16 Poster Presentation* A25. B-1÷B-8 Poster Presentation* B3 Friday.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Belgrade. “Gheorghe Asachi" Technical University of Iasi. University of Ljubljana. Romania B. B13 - Saturday. June 18.D. Transilvania University of Brasov. Advances in Composite Materials and Technologies: Advanced Metals. 2) Go to your abstract and note the ID. Romania Secretary: Eng. Engineering of Manufacturing Processes: Novel Manufacturing Methods. Student. A42. Romania Section A & Section B Oral Presentation: Magnolia 1 Room. New Industrial Applications. * The poster session started after the oral presentation. 15 . Presidents: Dr. B-17÷B-24 Poster Presentation* A40. B-25÷B-28 Poster Presentation* A55 Please follow the steps: 1) Check the author index (Book of Abstracts) for the page number. Camelia Cerbu. Advanced Methods and Tools for Computer Integrated Manufacturing. ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. June 19. 16 . C74. June 18. Mamaia. Aleksander Gwiazda. Prof. Physical and Geometrical Characterization. Romania Assoc. Gliwice. Characterization. C66. 3) Check the day and room of your presentation. Silesian University of Technology. Probabilistic Modeling and Analysis Presidents: Lecturer Ciortea Mihaela Elisabeta. Ph. Student. Adriana Mihaela Coroiu.D. C76. C47. Romania Section C Oral Presentation: Orhideea Room 10th floor Poster Presentation: Foyer Magnolia 1st floor C. Romania Thursday. C72. C79 Please follow the steps: 1) Check the author index (Book of Abstracts) for the page number. Babes-Bolyai University of Cluj Napoca. C48. C71. Structural. Poland Secretary: Eng. 2015 - - Saturday. 2015 1530-1730 Oral Presentation Papers ID: C-1÷C-19 Poster Presentation* C28. * The poster session started after the oral presentation. Modeling and Simulation of Mechanical Processes: Mechanical. C51. 2) Go to your abstract and note the ID. C52 1030-1045 Coffeee Break 1045-1200 Oral Presentation Papers ID: C-60÷C-82 Poster Presentation* C61. C38 1730-1745 Coffee Break 1745-1930 Oral Presentation Papers ID: C-20÷C-39 Poster Presentation* Friday. “1 Decembrie 1918” University of Alba Iulia. June 20. 2015 830-1030 Oral Presentation Papers ID: C-40÷C-59 Poster Presentation* C46. Ph. E-23÷E-31 Poster Presentation* D18 Please follow the steps: 1) Check the author index (Book of Abstracts) for the page number. Silvia Avasilcai. Business Process Modeling and Analysis. Turkey Phys. E-8÷E-14 Poster Presentation* Friday. Biological Inspired Robotics.. University of Oradea. Mircea-Petru Ursu. Technology Transfer: Knowledge Management Case Studies. Vasile Alecsandri” University of Bacau. Nicolae Fildan – President of AGIR. Romania Secretary: Lecturer Radu Caliman. Romania Section D & Section E Oral Presentation: Magnolia 2 Room 1st floor Poster Presentation: Foyer Magnolia 1st floor D. Gliwice. 2015 830-1030 Oral Presentation Papers ID: D-11÷D-14. Romania Eng. 2) Go to your abstract and note the ID. 2015 1530-1730 Oral Presentation Papers ID: D-1÷D-5. Sinan Sezek. Social Robotics. June 19. E-15÷E-22 Poster Presentation* D12. "Gheorghe Asachi" Technical University of Iasi. 2015 - - Saturday. Iwona Paprocka. Ataturk University. Process Planning and Flexible Workflow. Romania E. D13 1030-1045 Coffeee Break 1045-1200 Oral Presentation Papers ID: D-15÷D-19. 3) Check the day and room of your presentation. Security in Business Process Presidents: Prof. Knowledge Communication. Erzurum. Innovation and Engineering Education. Constanta Branch Secretary: Assistant Prof. 17 . Silesian University of Technology. Robotics and Computer Integrated Manufacturing: Industrial Robots. Business Intelligence.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. E-1÷E-7 Poster Presentation* D4 1730-1745 Coffee Break 1745-1930 Oral Presentation Papers ID: D-6÷D-10. Entertainment Robotics Presidents: Lecturer Dr. * The poster session started after the oral presentation. Mamaia.D. June 18. Poland Thursday. Knowledge Portals. CIM Systems. June 20. Raicu Serban.and Nano. “Gheorghe Asachi" Technical University of Iasi. University of Pitesti.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. University of Stuttgart. Corneliu Munteanu. Nano-droplets. G31 - Please follow the steps: 1) Check the author index (Book of Abstracts) for the page number. G-17÷G-25 Poster Presentation* - 1030-1045 Coffeee Break 1045-1200 Oral Presentation Papers ID: F-15÷F-18. G29. Romania. Constanta Maritime University. Prof. Sc. Republic of Moldova Prof. Micro. Romania Section F & Section G Oral Presentation: Small Orhideea Room 10th floor Poster Presentation: Foyer Magnolia 1st floor F. Presidents: Prof. Romania Thursday.Technologies: New Developments in Micro/Nano Scale Processes. June 20. G-1÷G-8 Poster Presentation* F2 1730-1745 Coffee Break 1745-1930 Oral Presentation Papers ID: F-5÷F-9. Balti. Romania Secretary: Lecturer Nadia Belu. 3) Check the day and room of your presentation. 2) Go to your abstract and note the ID. 2015 830-1030 Oral Presentation Papers ID: F-10÷F-14. 18 . June 19. Maritime Engineering and Navigation: Maritime Engineering and Technologies. Mamaia. F16. Constanta. “A. 2015 1530-1730 Oral Presentation Papers ID: F-1÷F-4. G-26÷G-33 Poster Presentation* F15. Alexandr Ojegov.Russo” University. Serban Berescu. Germany G. June 18. 2015 - Saturday. Romania Secretary: M. faculty of Navigation and Maritime Transport. Maritime Transport and Economics. Nanofluids Presidents: Eng. Member of the Academy of Technical Sciences of Romania Assoc. Irina Arhire. Nano-bubbles. Fabrication of Nanostructure and Materials: Nanofilms. G-9÷G-16 Poster Presentation* Friday. * The poster session started after the oral presentation. “Politehnica” University of Bucharest. Romania Abstracts – Plenary Session 19 . Mamaia.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. microgenerators. Romania Keynote Speaker TRIBOLOGICAL ISSUES IN MICROMACHINES Esteban Broitman Thin Film Physics Division. only solid or vapor-phase lubrication can be used. data storage. Therefore. Sweden Corresponding author: Esteban Broitman. Linköping University. gears and levers. and microengines. Adhesion at the microscale is a consequence of van der Waals forces: electrostatic interactions between surface dipoles and charges. because capillary forces created by confining liquids to small geometries is in the same order of magnitude as actuation forces generated by micromachines. This work focuses on the main tribological issues of micromachines. and actuation forces in the milli-Newton scale. there are some applications like stepper motors taking advantage of friction: with step sizes on the order of 10 to 100 nm. game controllers. present industrial applications include accelerometers in automotive systems. Mamaia. 20 . IFM. and rotation sensors for smartphones. Therefore. Most of commercial micromachines are designed as transducers for applications with no contact or sliding: they are either sensors or actuators. Basic silicon mechanical and tribological properties and micromachining methods are reviewed. Known also as MEMS (micro-electro-mechanical systems). the commercial production of these kind of micromachines is inexistent. SE581 83 Linköping. and medical applications. as well as capillary phenomena and chemical forces. Friction and wear are inevitable in mechanisms where components in contact have relative motion.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Friction become increasingly significant as the system size shrinks and it is a crucial factor that determines not only efficiency but durability. Solid lubrication by depositing carbon-based coatings using thin film technology.liu. Lubrication for decreasing friction and wear in these devices is difficult. Potential improvements and economic feasibility issues are also addressed. it becomes critical on the microscale and is one of the fundamental limitations in the design of reliable micromotors. inkjet printer heads. Despite of niche industrial applications with designs of more complex MEMS devices containing moving mechanical assemblies (MEMS-MMA) like micromotors. and liquid lubricants applied by vapor-phase lubrication are discussed. they could be used for positioning optical. and usually fabricated with semiconductor technologies to integrate mechanical components with electronics on a single chip.se Abstract: Micromachines are mechanical machines designed in the range 100 nm to 100 µm in size. However. The main problem in micromachines is tribological: the presence of stiction. high friction and wear between the small components. esbro@ifm. Nature Photon.cn Polymer solar cells (PSCs) have been currently attracting an extensive attention and gaining increasing importance due to their applied prospect as renewable. The material was found to simultaneously offer good contact for photogenerated charge-carrier collection and allow optimum photon harvest in the device... Romania Keynote Speaker HIGHLY EFFICIENT POLYMER SOLAR CELLS Xinhua Ouyang.ac. Z. the PSCs power conversion efficiencies are still constrained within 10%. Ling Ai & Ziyi Ge Ningbo Institute of Material Technology and Engineering (NIMTE). Chemistry of Materials，2013.02% using novel material in single heterojunction conventional PSCs. Xingye Zhang. R. Ningbo International Cooperation Foundation (2012D10009.. Nevertheless. 46. enhanced active-layer absorption. Chinese Academy of Sciences (CAS). Peng. New Alkylfuranyl-Substituted Benzo [1. He. 1 Properties of the PSC Acknowledgment: This work was Financial supported from National Natural Science Foundation of China (21074144. lightweight and low-cost energy sources1-2. Reixiang Peng. et al. Shaojie Chen. Yang Wang. Abstract: Fig. geziyi@nimte. S. Our discovery opens a new avenue for fully exploiting the potential of various material systems to move the efficiency of devices over the threshold of 10%. C. F. “Significant Enhancement of Polymer Solar Cell Performance via Side-Chain Engineering and Simple Solvent Treatment”. Furthermore. Yang. 25(15) 3196-3204. Mamaia.. 591-595 (2012). Recent advances in polymer solar cells‟ performance have been achieved with the reported power-conversion efficiency (PCE) of PSCs over 9% in the scientific literature3. 51273209). we reported PSCs with exceptionally high PCE which was up to 10. the enhanced performance is attributed to improved electron mobility. Ziyi Ge.5-b′] dithio phene-Based Donor-Acceptor Polymers for Highly Efficient Solar Cells. Ge.2-b:4. 2. References: 1. 21102156. 21 . China Corresponding author: Ziyi Ge. Yin Liu. and properly active-layer microstructures with optimal horizontal phase separation and vertical phase gradation. The development of high-efficient PSCs is still urgently required. 6. Liu. Ruixiang Peng. Z. 3. Here.. Y. 2013D10013) and the External Cooperation Program of the Chinese Academy of Sciences (No. Wang. Chen.. 1368. which does not break the threshold for commercial applications.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Y. GJHZ1219). Ningbo 315201. Macromolecules 2013. Enhanced power-conversion efficiency in polymer solar cells using an inverted device structure. the efficient stabilisation of the ceramic based nanopowders is a prerequisite for the preparation of these highly reliable ceramic nanocomposites or as translucent or even transparent nanoparticle containing composites. Überlandstrasse 129. Laboratory for High Performance Ceramics. Agglomeration or re-agglomeration due to Van der Waals forces can be avoided using different concepts to increase the separation barrier by electrostatic or steric means. alumina and zirconia submicron and nanoparticles were therefore performed in order to develop a basic understanding of the mechanism of dispersing small particles in polar and nonpolar medium. thomas. zeta potential measurements. To achieve a good performance of these nanocomposites. transparency and rheology measurements.graule@empa. for sensor development. Switzerland Corresponding author: Thomas Graule. CH-8600 Dübendorf. Extensive studies using silica. in energy related technologies ( fuel cells. Some results for the application of such surface modified nanopowders in nanoceramics and nanocomposite development are shown. Mamaia. Romania Keynote Speaker CERAMIC BASED NANOCOMPOSITES – A PROCESSING CHALLENGE Thomas Graule Empa.g.ch Several Ceramic based nanocomposites will open new applications in structural applications in machine industry and for medical implants. in nanofiltration and in photocatalysis based degradation of air and water pollutants. The effectiveness of the dispersants was evaluated on the basis of adsorption. Swiss Laboratories for Materials Science and Technology.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Abstract: 22 . hydrogen and synthetic fuel generation) as well as in environmental applications e. heat. so they can be modeled as functions of time. A frequency-domain approach saves time provided that the response of a system is needed for a given frequency of oscillation and/or for a small number of harmonics. when an oscillatory or repetitive process is investigated..104. Numerical methods are therefore widely used in order to compute solutions to most equations with linear operators e. Mamaia. Although our examples belong to the field of electromagnetism. and that despite of a long computing time. Most phenomena are timedependent. Romania Keynote Speaker NUMERICAL METHODS FOR TIME-DOMAIN AND FREQUENCY-DOMAIN ANALYSIS: APPLICATIONS IN ENGINEERING Razvan D. Basically. Key words: numerical methods. This actually is the case of many problems to be solved in mechanics. 900663 Constanta. Tamas. current distributions). In this paper. electromagnetism. however. Tamas Constanta Maritime University.. frequency-domain.g. sound. and further a frequency-domain approach is absolutely feasible. by using known basis functions. It is therefore more appropriated to the time-domain analysis of the propagation of electromagnetic waves. as similar equations are to be solved. we show that time-domain equations can also be accurately solved. as that method is inspired from the way in which a pulse propagates within a transmission line mesh. 23 . method of moments (MoM). The Method of Moments (MoM) is a general purpose method for solving equations with a linear operator applied to a function to be found. a frequencydomain representation might be preferred. razvan. we present and compare two numerical methods primarily employed in electromagnetism. heat transfer.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20.Mircea cel Batran nr. Nevertheless. a time-domain analysis with a pulsed excitation would provide thorough information on the oscillatory response for a myriad of frequencies by means of an inverse Fourier transform. etc. The Transmission Line Method (TLM) is a more specific method that could solely be applied to wave-type differential equations. Romania Corresponding author: Razvan D. It is based on an approximate expansion of the unknown function. applications of the MoM in electromagnetism deal with functions of a coordinate (e. A time-domain approach would better model a transient behavior.g. differential and integral equations. they are far from being typical and we show therefore the high flexibility and the potential of application of the two methods.eu Abstract: Characteristic equations modeling different phenomena in engineering do not generally lead to analytic solutions. etc. time-domain.tamas@cmu-edu. Str. An insight of how the two methods could be applied to other fields of engineering is eventually provided. though. transmission lines matrix method (TLM). but potentially applicable to other fields. representing an assembly of nanosized primary particles. Key words: nanoparticles.Tm. TEM. climate change and natural resources depletion forces tremendous technological and scientifical research activities for the development of next generation of materials able to address both the energy and environmental problems.milosevic@itn. Y3Al5O12:Ce. Particularly.Yb. nanocrystalline or metastable phases that might have a huge impact in the processing of advanced functional materials having novel and unique structures and properties. olivera. Romania Keynote Speaker HIERARCHICALLY ORGANIZED FUNCTIONAL MATERIALS PROCESSED THROUGH SOFT CHEMICAL ROUTES Olivera Milošević 1. Avd. K.Universidad 30. Madrid. hierarchically organized nanostructured particles with uniformly distributed components and phases. morphology and optical properties. chemical and phase content provided by high heating and cooling rates. Ti (IV) oxide. morphological and functional complexity are explored by means of appropriate selection of different precursor solutions. short residence time and high surface reaction. Among the diversity of the soft chemical approaches for nanomaterials processing. TiO2 etc. This implies an exciting progress in the field of nanoscience and nanotechnology. hydrothermal route.Mihailova 35/IV. nanotomography. HR-TEM. energy transfer and bioimaging. STEM.Er. The diverse levels of structural. Serbia 2 University Carlos III. the hydrothermal method (HT) is shown to be one of the simplest techniques for their obtaining. the opportunities of both methods for the synthesis of novel functional materials based on Gd2O3:Eu. as well as development of assigned and controlled synthesis route with the ability to ensure nanophase synthesis in a controlled manner. With the help of various analyzing techniques like XRPD. is demonstrated for the synthesis of spherical three-dimensional (3D). like phosphors. Mamaia. photovoltaics. drug delivery carriers etc. phosphors. surface modification and proper selection of rare-earth based dopants for the generation of either photocatalytic titanium (IV) oxide or a range of both down and upconversion phosphor particles. (Y1-xGdx)2O3:Eu. aerosol. the opportunities of the hot wall aerosol processing. either true or colloid. opens the possibility for particle surface modification and functionalization emphasizing their application in photovoltaics. synthesis through dispersion phase (aerosol) enables generation of ultrafine. short residence time and high surface reaction. FE-SEM. for solving energy/environmental problems will be reviewed.rs Abstract: Global warming.ac. 24 . from another. provided by high heating and cooling rates. Fourier transform infrared (FTIR) spectroscopy and luminescence measurements. NaYF4. catalysts. The particles composite inner structure. This may favors to the formation of either amorphous.sanu. The key points important for the future research and development of nanophased materials represent the ability for further improvement of material properties through nanostructuring and fundamental research of structureproperties relationship.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Lidija Mančić 1 & Maria Eugenia Rabanal 2 1 Institute of Technical Sciences of the Serbian Academy of Sciences and Arts. Y2O3:Eu.Ho. 28911 Leganes. When one-dimensional (1D) nanomaterials are considered. from one side. 11000 Belgrade. sensors. UV-Vis diffusive reflectance (UV-Vis DRS). particularly regarding the control synthesis of nanoscaled particles that might have a great potential for use in solid-state functional materials and devices. either single or complex powders with controlled stoichiometry. Spain Corresponding author: Olivera Milosevic. The obtained results offer a general route for the synthesis of nanomaterials with tunable structure. SEM/EDS. These lightweight fibers show high thermochemical stability up to 700 °C. A promising alternative to carbon and synthetic ceramic fibers are mineral based basalt fibers. Mamaia. lightweight structures. filament winding or warm pressing techniques are employed. Lightweight. University of Stuttgart.de SiC composites have been developed by various processing methods. This class of composites is handicapped by the high cost of investment and processing. basalt fibers. are manufactured by the use of polysiloxanes as SiOC matrix precursor. polymer derived ceramics. Allmandring 7b. rainer. interface coatings and raw materials and therefore only attractive for applications in astronautics and military aviation. Romania Keynote Speaker PRODUCT INNOVATION WITH FIBER REINFORCED CERAMIC COMPOSITES – MANUFACTURING TECHNOLOGIES OF LIGHTWEIGHT STRUCTURES FOR EXTREME OPERATING CONDITIONS Rainer Gadow1. The manufacturing technologies are fully developed and raw materials are cheap. In order to make the material attractive for series applications. Nobelstraße 12. Polymer Matrix Composites (PMC) are widely used in lightweight applications. 25 . 2 1 Institute for Manufacturing Technologies of Ceramic Components and Composites (IMTCCC). a major benefit of SiOC composites is investigated in the field of friction materials. reaction bonding. bridging the gap between PMC and CMC. high wear resistance and an adjustable coefficient of friction make them an interesting and much cheaper alternative for CFC and CMC.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Germany 2 Graduate School of Excellence in advanced Manufacturing Engineering (GSaME). Germany Corresponding author: Rainer Gadow. i. 70569 Stuttgart. CVD/CVI and liquid phase impregnation. Novel composite materials. e. University of Stuttgart. Beside the improved thermal and chemical resistivity in comparison to reinforced polymers and light metals. Their processing in various manufacturing chains is shown and the properties of the obtained composites are described. Such competitive free formable composites are capable for service temperatures up to 650 °C even in oxidative atmosphere. are relatively cheap and became recently available on an industrial scale. 70569 Stuttgart.gadow@ifkb. cost effective manufacturing technologies like Resin Transfer Moulding (RTM).uni-stuttgart. Abstract: Key words: ceramic composites. The major drawback and limiting factor of these reinforced polymers is the limited service temperatures. -Nanomaterials with tailored functionalities for new generation energy sources..nl An overview will be given of the history and “State of the Art” of nanotechnology in the world. -Install a European Industrial Agency.. 33. -Role of nanomaterials in transportation: aeronautics and car industry. -Opportunities for nanoindustrial. -Trends in nanotextiles: laundry & home care. functional and bioMaterials) and nanotechnologies. nanometrology and standardization and so on.. characterisation...e... sealants.. -Nanopotentials in Safety (Toxicology) and Security..vandevoorde@xs4all.& consumer products: i... Innovations and Technology Applications -Breakthroughs in communication and information.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20... -…………………. adhesives. Eeuwige Laan. properties and computer modelling. Mamaia. -Regulations for safe operation. -Grand challenges in life science and medical applications.. marcel. Market opportunities for nanomaterials and nanotechnologies Abstract: 26 .. -…………………... Guidelines for a prosperous modern industry and welfare for the society -Initiate “university – science/technology institutes -industry” partnerships. -Initiate European Infrastructures for nanomaterials R&D&T.. Fundamental research is the backbone for future industrial success including theories.. -Create European NanoIndustry Centres. -Potentials for the chemical industry. 1861 CL Bergen. IN THE FUTURE “EDUCATION – RESEARCH – INNOVATION – INDUSTRIAL APPLICATIONS” Marcel Van De Voorde Delft University of Technology. -Promote Nanoindustrialisation: Technology Parks. -....... Netherlands Corresponding author: Marcel Van De Voorde.. -Familiarise the Society with the new Culture of NanoTechnology” i.. new design of third generation nanomaterials. Environment and Safety Issues -Man-Made environment. Romania Keynote Speaker REVOLUTIONARY DEVELOPMENTS OF NANOTECHNOLOGY. this will cover nanoMaterials (structural-..e. Consumer protection. the Mach number will deviate from the theoretical one. x will contain the geometrical parameters describing the geometry. u ) Implying the mean output cannot be simply obtained on the basis of the mean of the input uncertainties.g. If one distinguishes between deterministic input variables d and uncertain input variables u. In the design of engineering systems one typically wants to optimize the output(s) of the system. T. as can be described by: y=f(x) Where y is an output and x is a vector of input variables. as well as the cruise flow conditions (Mach.… UQ methods allow to propagate the uncertainties through the system. Romania Keynote Speaker EFFICIENT UNCERTAINTY QUANTIFICATION IN ENGINEERING WITH POLYNOMIALCHAOS Chris Lacor Department Mechanical Engineering.lacor@vub. in order to characterize the uncertainty of the output (with PDF and moments). Polynomial Chaos (PC) is a powerful method to deal with the propagation of uncertainties. as well as the other conditions. a Gaussian distribution. whereas y is for instance the drag D which is to be minimized.e. f is usually a nonlinear relation.g. chris. in the design of an airplane. In the present talk it will be introduced and illustrated with several examples and complex applications from the NODESIM-CFD and UMRIDA EU projects. Pleinlaan 2. Several of the input parameters are in fact uncertain: e. E. Ways to deal with this will also be discussed. Mamaia. The relation between output and input is given either by experiment or a CFD simulation. at cruise speed. Belgium Corresponding author: Chris Lacor. mean. and its moments i.ac.g. AoA. one has: y=f(d. The main drawback of PC is the so-called curse of dimensionality in case of many uncertainties.u) We assume that u can be described by a probability density function (PDF). For instance the mean output 𝑦 is given by (taking the nonlinearity of f into account): y f (d . u ) f (d . p.…). Vrije Universiteit Brussel.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. which are function of the system inputs.be Abstract: The present paper focuses on the use of uncertainty quantification (UQ) in engineering. in reality. e. 27 . variance. Sn-Cu and Sn-Ag binary eutectics have attracted considerable attention as potential Pb-free solders.fr Soldering is and in future will remain an important technological process in microelectronics and in other fields.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. fhodaj@simap. In recent years. The experimental conditions are chosen such that: (i) for the first series of experiments a significant change in the driving force of diffusion do not lead to a change in the microstructure of the reaction product and (ii) for the second series of experiments a drastic change in the microstructure of the reaction product is provoked by changing the experimental conditions and maintaining practically the same driving force of diffusion process. interfacial reactivity. Univ. This problem becomes more complex with the continuing trend towards increasing miniaturization of microchips. Romania Keynote Speaker FACTORS GOVERNING THE GROWTH KINETICS OF INTERMETALLICS AT SOLDER / SUBSTRATE INTERFACE Fiqiri Hodaj Grenoble Institute of Technology. In this work some fundamental thermodynamic and kinetic aspects of interfacial interactions between solder alloys and Cu substrate. However. 28 . The inherent complexity of the substrate-solder systems and a large variety of possible reactions in these materials (their sequential and concurrent occurrence) makes it extremely difficult to develop a predictive model that describes quantitatively morphological evolution within the solder joints.grenoble-inp. will be discussed. metastability. ternary alloys based on Sn-rich. thermodynamics. intermetallic layers formed at the interface between the solder and pads of a printed circuit board may adversely affect the reliability of solder joints due to excessive growth during storage and service. growth kinetics. France Corresponding author: Fiqiri Hodaj. confronted with experimental results. The consequences of the interfacial reactivity on the physical properties of the solder joints obtained in electronic packaging industry are also discussed for the case of micrometric size systems that operate under metastable conditions. A detailed thermodynamic and kinetic analysis of experimental results is presented in order to model the growth kinetics of interfacial layers under different conditions and configurations and thus to highlight the factors that govern this growth. Abstract: Key words: soldering. F-38000 Grenoble. SIMAP. we have clearly established the role of the microstructure of the reaction product on the growth kinetics of intermetallic layers between liquid solders and Cu substrate by performing two specific series of experiments. diffusion. Grenoble Alpes. Here. Mamaia. product quality. Abstract: Key words: Stacking plastic. and retracting. An automotive part. and SCFH are 14 second. The effects of process parameters. The simulation procedure based on DEFORM-3D multi operation is conducted to integrate subprocess and simulate the sequential steps. including heating time. The integration of ABAQUS and ANSYS Fluent is employed to obtain the time-dependent heat fluxes. 14 second. University of Ulsan. Romania Keynote Speaker DEVELOPMENT OF INFRARED STACKING PROCESS FOR AN AUTOMOTIVE PART Hong. such as heating time. Nam-gu. CFD (Computational fluid dynamic). South-Korea Corresponding author: Hong. The non-linear equations and ABAQUS-based simulation model are used to predict the plastic temperature after heating process. The optimizing results indicated that heating time is more contributed to tensile force. and 60 (ft3/h). The optimum values. punch time. In the processing time. including clamping. the results imply that increasing heating time and air flow rate can contribute significantly the tensile strength of the joint. air flow rate-SCFH on the thermomechanical behavior of the joint has been investigated. 93 Daehak-ro. 680-749. DEFORM-3D multi operation. heating. The material behavior after forming process is investigated using a simulation model in DEFORM-3D environment. the cooling process is conducted in order to reduce the plastic temperature. such as higher energy efficiency. Finally. and productivity. respectively. following by punch time and SCFH. GMDH-type neural network. forming time. The analysis of sub-process. The process takes place in four basic phases. optimization algorithm is employed to simulate and optimize the stacking plastic process.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. this process provides some advantages. the plastic is firstly heated. FEA and CFD. Subsequently.Seok Park.Seok Park & Trung-Thanh Nguyen School of Mechanical Engineering. In this work.ac. Mamaia. In addition. In comparison with the conventional stacking technology.kr Stacking plastic is a new technology that uses infrared light as the energy sources in order to assembly the different plastic parts at the semi-molten temperature. the proposed method that couples between FEA (Finite Element Analysis). phosk@ulsan. including heating. forming and cooling process is conducted in order to identify the significant parameters. the optimization based on GMDH-type neural network and Genetic algorithm is employed to obtain optimization results. Ulsan. The correlation between simulation and experimental results indicates the effectiveness of the proposed method. staking & cooling. the tensile strength. and formed by the impact of die. namely Door Trim with poly polypropylene material is implemented by using new developed technology. The analyzed results of sub-process are considered as the inputs of holistic optimization of the process chain. 29 . tetrahedronfuran.3% was higher than PSS: PEDOT -based solar cell with PCE at 3. The Conjugated polymers were used for single-walled carbon nanotubes (SWCNTs) wrapping to separate metallic and semiconducting nanotubes and their chiralities were characterized by photoluminescence-excitation (PLE) map as well as UV/vis/NIR absorption sprectra. OPTOELECTRONIC AND PHOTOVOLTAICS APPLICATIONS Qiang Zhang1. fluorinated. and unsymmetrical structure) revealed unique physical-mechanical. polymer memories. PNBs synthesized via ROMP showed excellent transparency at about 90 % and high thermal stability (Tgs > 160 oC) by aromatic chromophores incorporation. Ying-Chi Huang1.tw. Tzung-Fang Guo2 & Der-Jang Liaw1 1 Department of Chemical Engineering. organic field effect transistors. liawdj@mail. for example.. Wei-Ting Wang1. National Taiwan University of Science and Techenology 2 Department of Photonics. highly transparency and flexibility which are important properties for optical applications. polyamides (PAs). flexibility. liawdj@gmail. PIs derived from different architecture designs (e. Suzuki coupling and ring-opening metathesis polymerization (ROMP). naphthalene. When alcohol soluble polytriarylamine-based conjugated polymers was used in perovskite solar cells. Their HOMO levels were controlled between -4. dimethylacetamide and dimethylsulfoxide) and as a result can be used to fabricate optoelectronic devices such as solar cells. Yian Tai1. 30 . the overall power conversion efficiency (PCE %) at 6.2 eV to fabricate heterojunction thin film devices which play an important role in dye-sensitized solar cells (DSSCs) and organic photovoltaics (OPVs). organic photovoltaics. noncoplanar. hole-transporting materials. Chou-Yi Tsai1. Triarylamine-containing polymers cast on flexible graphene-coated PET had electrochromic properties and capacity for multiple colour change reversibilities. Taiwan Corresponding author: Der-Jang Liaw.ntust..g. Key words: electrochromism.g. In addition. SWCNTs wrapping.edu. Chun-Hsien Wu1. These polymeric materials had high organo-solubility in common solvents (e. Jun-Yuan Jeng2. pyrene.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. heterocyclics. Tainan.9%. Nmethylpyrrolidone.or poly(triarylamine-fluorene)-based conjugated polymers possessed water/alcohol solubility and high carrier mobility about 10-3 cm2 V-1 s-1 which were suitable materials for hole-transporting layer of solar cell. triphenylamine and carbazole. conjugated polymers and polynorbornenes (PNBs) were successfully synthesized through various polymerization methods including low temperature polycondensation. fluorene. poly(amide- imide)s (PAIs). National Cheng Kung University. bulky groups.com Abstract: Advanced polymer materials such as polyimides (PIs). and smart windows through solution process. Polytriarylamines. electrical and chemical properties. cyclic aliphatic.9 to -5. the conjugated polymer with hexa-peri-hexabenzocoronene (nanographene) was polymerized by Suzuki coupling and its dispersion prepared by bath soication was characterized by PLE measurements for graphene optical applications. perylene. high thermal resistance and proton sensitivity. Po-I Wang1. thermal stablity (thermal decomposition temperature was higher than 400oC). chiral. dimethylfoamaide. PAs with the pyridine moiety displayed good film forming abilities.The (PAIs) synthesized from polycondensation exhibited high viscosity. Romania Keynote Speaker FUNCTIONAL POLYMERS VIA PRECISION POLYMERIZATION: SYNTHESIS. Mamaia. pl Hardenability is one of the main criteria for the selection of steels for machine components. could be successfully used for other materials and other properties. The aim of the research was to create a fuzzy system which will be allow the calculation of the hardenability of the steel based on chemical composition and the distance from the quenched end. 44-100 Gliwice. Konarskiego 18a street. Hardenability describe susceptibility of steel to hardening. Abstract: Key words: steels. expressed the dependence of hardness increase due to austenitizing conditions and cooling rate. Jominy curve.sitek@polsl. Extensive comparative studies on different methods for calculating the hardenability indicate a different accuracy for various methods for hardenability calculation. Romania Keynote Speaker APPLICATION OF FUZZY SYSTEMS TO CALCULATION OF THE HARDENABILITY OF THE STEEL Wojciech Sitek & Artur Irla Silesian University of Technology. was analyzed many combinations of parameters (eg. The possibility of the steel production with specific mechanical properties makes it not difficult to manage these criteria . Institute of Engineering Materials and Biomaterials. hence it plays an important role in designing machinery and. Therefore. it is necessary to reconcile all the criteria so that the produced constructions perform its role properly. Ni. The research on the development of fuzzy system with different parameters and their analysis allowed to formulate conclusions that this computer tool. the range of impact of the cluster center). Cr.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. They allow to obtain a response with different accuracy and everyone else manage with the calculation of hardenability curve. which is affected by the alloying elements. modelling. Faculty of Mechanical Engineering. fuzzy system. Mamaia. Today once again hardenability became the subject of scientific interest. Mo. the size of the cluster. It dependent primarily on the concentration of carbon and the type and concentration of alloying elements dissolved in solid solution during austenitizing and the size of the primary austenite grains. In the process of designing construction engineer must consider many externals that interact at the same time on the item. Its determination can ensure that the assumed distribution of property on the cross section of the heat treated component. which allowed to the creation of many fuzzy systems with the varying quality. Mn. is of interest to technologists.one of the mechanical properties under consideration is the hardness of steel. V. as well as to predict the hardenability curves which are the chart of hardness versus the distance from the hardened surface. therefore. which was used in materials science for forecasting of properties of structural steels. 31 . In the study. Poland Corresponding author: Wojciech Sitek. especially because of the possibility of using advanced numerical methods and computer tools for modeling hardenability. hardenability. In case of structural heat-treatable steels it depends mainly on the content of the main alloying elements: C. wojciech. România Corresponding author: Petrică Vizureanu.com Abstract: Measurement and numeric control (digital) systems have mainly imposed in the last decades because the technological revolution within electronic components domain. a higher work speed and an increased automation degree of the manufacturing process. peviz2002@yahoo. If all this process takes place in its expected order. a programming environment and a series of execution elements that fulfill promptly the commands of the expert systems. The expert systems are numerical structures of adjusting and automat control using an operation system. It results in this manner a software component that interprets the logical solution and transforms it into a codes solution. Mamaia. then one can foresee the expected results. 32 . An expert system undertakes a human problem of which solutions can be logically determined by a natural deductive system (natural system based on a series of solid knowledge) and codes it with the help of a computer.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. It was accomplished an original „on-line” management system in closed circuit with gradual command of heating electric power and self-adaptive control with PID behavior of temperature. It is thus obtained a bigger accuracy in numeric information processing by facilitating the direct connection with computer. Romania Keynote Speaker EXPERT SYSTEMS USED FOR THERMAL PROCESSES Petrică Vizureanu “Gheorghe Asachi” Technical University from Iaşi. Moreover some innovative perspective dyes and DNA have been investigated to study the effect of the rotation of the polarization plane of light. The holographic recording technique in the visible spectral range has been used to investigate the photorefractivity. dom. The first one in connected with the drastic improvement of the photorefractive parameters of the organic structures founding via nano. inorganics. grant No. Abstract: Acknowledgement: The presented results are partially supported by Russian Foundation for Basic Research Fond. The spectral. including MgF2. have been presented.and biostructuring process of the compounds. Russia Corresponding author: Natalia V.13-03-00044 (2013-2015) as well as by FP7 program. NaCl. interface.. bio-objects. The second part regarded to study the use of the perspective carbon nanotubes in order to improve the spectral and mechanical characteristics of some inorganic materials. displays. mass-spectral and photoconductive features supported the photorefractive effect of some conjugated materials. The increase of the microhardness due to the large number of the carbon nanotubes C-C bonds has been observed. korpus 2. Laser deposition technique with the following treatment via surface electromagnetic waves has been applied at the wavelength of 10. Str. organics. Romania Keynote Speaker TENDENCIES OF THE OPTICAL MATERIALS PROPERTIES CHANGE VIA NANO. nano-objects.6 micrometers. Kamanina. etc. KBr. The area of application of the materials to be used in the optoelectronics and biomedicine has been discussed. Marie Curie International researchers exchange proposal “BIOMOLEC” (2011-2015). Key words: Laser-matter interaction. including the liquid crystal ones.
[email protected] BIO-STRUCTURING Natalia V.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Mamaia. Petersburg. The area of application of the optimized inorganic materials to be used in the laser techniques. and biomedicine has been discussed. 33 . The evidences of the influence of the covalent bonded carbon nanotubes with small refractive index at the material surface on the wetting phenomena have been established. KCl.O. general optoelectronics.and bioobjects doping on the laser-induced change of the refractive index have been established.5. Vavilov State Optical Institute Kadetskaya Liniya V. Some evidences of the influence of the nano. Kamanina Lab for Photophysics of media with nanoobjects. 199053.ru The present paper contains of the two parts. . (2013) Spatially Resolved Transport Properties of Pristine and Doped Single-Walled Carbon Nanotube Networks..G. A. Z. Cui. A.G.. A. Nature Comminications 4. State-of-the-art flexible SWCNT films on PET (1) show transparency-sheet resistance properties surpassing those of ITO-PET films. Zavodchikova.e. Journal of Materials Chemistry A 2. 3. Nasibulin. P. Mizutani.S.I. A. S.I. A. Box 16100. (2014) Air-Stable High-Efficiency Solar Cells with Dry-Transferred Single-Walled Carbon Nanotube Films. Aalto University School of Science. A. Kauppinen. T. Kaskela. Mamaia. P. semiconductor material (2). A. Kauppinen (2010) Aerosol synthesized SWCNT networks with tuneable conductivity and transparency by dry transfer technique.G... high efficiency organic solar cells via replacing ITO electrodes with SWNT thin films (5).G.. K. based on conducting AFM experiments (3). Y. and Hassanien. The Journal of Physical Chemistry C 117.. Chiashi. Gaberscek. and Maruyama. We demonstrate the use SWCNT transparent films as capacitive touch sensors for mobile devices and as transparent OLED electrodes. Chiba. field effect transistor (TFT-FET) and solar cell (SC) applications. In addition.. A. 34 . T. Fujii. B.. H.. Nasibulin.-M. Aalto. M. High quality SWNTs with tunable diameter. I. 2302.. Aitchison. Nasibulin.. drain and gate electrodes and with thick PMMA polymer gate insulator. SWNT thin films were used in novel SWNT-Si solar cells (4). Also. And Matsuo..I. Zakhidov and E.kauppinen@aalto. NanoLetters 10. Jiang.. 11311-11318. E. 4.. being optically better than ITO. S. Znidarsic. Y. Kaskela. E.. in addition to using SWCNT network as FET active i. Ohno. A. Kauppinen. metal nanowires and metal mesh based TCs. Y. Papadimitratos. esko. A.. all-carbon integrated circuits. Kauppinen Department of Applied Physics. flexible and even moldable all-carbon TFT-FETs with metallic-type conductivity CNT films as source. Anisimov.. 13324-13330. A. Cui. Chiba. Jeon. Tian. 4349-4355. Sun. D. I. Timmermans.fi We present our recent results on single walled carbon nanotube (SWNT) floating catalyst synthesis and dry deposition of flexible and transparent thin films for touch sensor (TC). We fabricate high performance transparent.S.. Kishimoto. Kaskela. Kauppinen. Romania Keynote Speaker CARBON NANOTUBE THIN FILMS FOR FLEXIBLE ELECTRONICS APPLICATIONS Esko I. We discuss tube-to-tube contact resistance dependence on the tube as well as the bundle diameter and the influence of chemical doping. M. Nasibulin..P. A. Brown. A. Abstract: References: 1.. Puumiehenkuja 2.O. Kauppinen and Y. M. Finland Corresponding author: Esko I. Y. Maruyama. S. Laiho. we developed flexible.I. length and bundle size have been produced from carbon monoxide (CO) using Fe cluster catalyst produced both via physical evaporation and via ferrocene vapour thermal decomposition in laminar flow of CO. A. FI-00076. D. 5. S. S. Nasibulin. T. H. 2. Zhu.. E. E. Ohno (2013) Moldable. (2014) Submitted. G. Kataura. Kauppinen. Anisimov. K..ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. low self-discharge rate. Since the discovery of LiCoO2 as the cathode material. Osaka University. its applications for lithium-ion batteries (LIBs) will be explained. The bonding is achieved through the enhanced particle surface activation induced by mechanical energy. It is generally accepted that cathode materials for LIBs play a key role in their performance advances. Romania Keynote Speaker SMART POWDER PROCESSING FOR ADVANCED MATERIALS Makio Naito. flexibility and lightness compared with the traditional batteries. in addition to the intrinsic high surface reactivity of nanoparticles. Ibaraki city. In this paper. porous granule and core@shell particle are easily achieved by this one-step mechanical processing. composite particle. 11-1. these synthetic methods require the multi-step processes. Firstly. it creates direct bonding between particles without any heat support or binders of any kind in the dry phase. the particle design such as composite granule. we have demonstrated the synthesis of LiCoO2. The technology has two main unique features. m-naito@jwri. energy-saving process. especially in consideration of green and sustainable manufacturing. Takahiro Kozawa. Osaka 567-0047. nanoparticle synthesis. Mihogaoka. Abstract: Key words: smart powder processing. Additionally. Using this feature. cathode powders are prepared by solid-state reaction and various solution methods. As a result. Lithium-ion battery. Li-intercalation oxides with transition metals have been found and investigated over the last decades.5Mn1. These offer a high operation voltage and energy density. LiFePO4 and LiNi0. This mechanical process can directly synthesize the cathode powders from their starting materials without any heat assiatane. 35 . Usually. Smart powder processing stands for novel powder processing techniques that create advanced materials with minimal energy consumption and environmental impacts. LIBs have been supporting the developments of wide applications from portable electric devices to energy storage systems of a renewable energy to build a sustainable society.5O4 powders as cathode materials by applying the particle bonding technology using an attrition-type mill. However. Japan Corresponding author: Makio Naito. In this paper.jp Various novel powder processing techniques have been recenlty developed for advanced material productions due to the growing of high-tech industry. Particle bonding technology is a typical smart powder processing technique to make advanced composites. desired composte particles can be successfully fabricated.ac. The second feature of this technology is its ability to control the nano/micro structure of assembled composite particles. it can custom various kinds of nano/micro structures and can produce new materials with a simpler manufacturing process in comparison to other techniques such as wet chemical ones.osaka-u. Recently. we will explain the particle design and synthesis of cathode materials for LIBs by applying the particle bonding technology and introduce the electrochemical performances of the batteries using their powders. Akira Kondo & Mitsuaki Matsuoka Joining and Welding Research Institute. Mamaia.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. New Industrial Applications. Romania Abstracts-Section A Engineering of Manufacturing Processes: Novel Manufacturing Methods. Energy Efficiency in Manufacturing 36 . Advances in Nontraditional Manufacturing Processes. Advanced Methods and Tools for Computer Integrated Manufacturing. Virtual Manufacturing. Smart Manufacturing. Mamaia. kempa@polsl. it can be helpful: in the projection of the buffer size to adjust it to service speed and intensity of arrivals. One of the most important stochastic characteristics of the operation of each manufacturing line is the queue-size distribution i. Poland 2 Silesian University of Technology. Abstract: Key words: finite buffer capacity. 23 Kaszubska Str.. 44-100 Gliwice. or adapt it to the level of the actual traffic of incoming jobs. In the paper we consider the model of a single-machine manufacturing line based on the finite-buffer queueing system with batched Poisson arrivals and exponential service times.g. transient state. Romania Paper ID: A-1 SENSITIVITY ANALYSIS OF TRANSIENT QUEUE BEHAVIOUR IN MANUFACTURING MODEL WITH FAILURES AND BATCHED ARRIVALS Wojciech M. Poland Corresponding author: Wojciech M. Kempa. Institute of Engineering Processes Automation and Integrated Manufacturing Systems. it is desired and necessary to investigate the sensitivity of the time-dependent queue-size distribution on “input‟‟ parameters characterizing arrival flow of jobs. like periods of significantly increasing intensity of incoming jobs or. the time needed for the system to reach the equilibrium. working period duration. Such an analysis can provide valuable information to make better the utilization of the manufacturing line.pl The optimal utilization of the manufacturing line requires permanent monitoring of key reliability characteristics like e.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. in the detection of untypical phenomena during the operation of the system. in which successive failure-free times of the server (machine) are followed by repair times. Time-dependent behaviour of the queue-size distribution can be used in the performance evaluation of the manufacturing system. working time. 37 . wojciech. Faculty of Applied Mathematics.g. 44-100 Gliwice. the observation of the time-dependent progress of successive probabilities is helpful in the estimation of the relaxation time i. Krzysztof Kalinowski 2 & Cezary Grabowik 2 1 Silesian University of Technology. Iwona Paprocka 2. probability distribution of sizes of job batches. service speed. Institute of Mathematics. [1]. Obviously. 18A Konarskiego Str. simultaneously. periods of low traffic level. We investigate the reaction of the queue-size distribution on changes of the following system parameters: intensity of batched Poisson arrivals. repair time. against different-type adverse phenomena occurring in the real traffic. failure-free and repair periods‟ durations. the level of the queue of jobs waiting for service or instantaneous queueing delay. to simulate the behaviour of the real manufacturing system in different scenarios and to protect it.e. parameter of exponential processing time. repair period duration. eventually. Moreover. Faculty of Mechanical Engineering. In particular. in the estimation of the level of manufacturing line‟s utilization. manufacturing line. in the prediction of buffer overflows during which the input flow of new jobs is timely suspended.e. the distribution of the number of jobs not completely processed or waiting in the buffer queue (see e. Mamaia. working period duration and repair time. queue-size distribution. Kempa 1. [2] and [3]).. The results were analysed by using analysis of variance (ANOVA). Romania Corresponding author: Chirita Bogdan. assure a prolongued life cycle for a product. Blvd. which range from tens of micrometers to the macroscopic scale. Dry cutting conditions and minimul quantity lubrication (MQL) where used. tool geometry. The choice of the cooling system is especially important. Elastic waves propagating in granular media provide a unique probe of both its structure and nonlinear properties. 900527. Abstract: Key words: surface quality. Constanta. Mamaia. sugar. 600115. but will also lower the costs and reduce the environmental impact and health risks. Romania Paper ID: A-2 EXPERIMENTAL INVESTIGATION ON THE EFFECTS OF COOLING SYSTEM ON SURFACE QUALITY IN HIGH-SPEED MILLING OF Al 6061-T6 Bogdan Chirita. Mihaela-Greti Chiţu2 & Petre Petculescu2 1 Constanta Maritime University. zagan. No. Abstract: Key words: ultrasound. powders. Calea Marasesti. cooling system. Paper ID: A-3 ULTRASONIC WAVES IN GRANULAR MEDIA Remus Zăgan1. Bacau. salt and gravel. MATLAB. Faculty of Naval Electromechanics. 157. Their physical behaviour involves complex non-linear phenomena. No. The dynamics of granular media shows many distinct facets and it is currently a very active field of research in the values science area. granular.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. A high quality surface can increase corrosion resistance. I our paper we examine the dependence of the nonlinear parameters on the applied loading. No. Constanta. Al 6061-T6 alluminum alloy. Nicolae Catalin Tampu. the process type. cutting parameters or the cooling system.ro Surface quality represents a key aspect in appreciating an industrial product. face milling. such as non-equilibrum configuration. non-linear elastic response and pelicular flow dynamics.eu Granular material consists of a collection of discret macroscopic solid particles integrated through repulsive contact forces. chib@ub. Faculty of Mechanical Enginering. Gheorghe Brabie & Maria Crina Radu “Vasile Alecsandri” University of Bacău. Romania Coresponding author: Zăgan Remus. surface quality is influenced by a series of factors such as material of the part. 124. 38 . energy dissipation. lower the wear and improve the aesthetic aspect. taking into account that the proper conditions will not only assure a superior surface quality. For a machined part. 104. The present study aims to investigate the performance of the cooling system and the effect of the cutting parameters on the characteristics of the surfaces resulted from high speed face milling of the parts made of Al 6061-T6 alluminum alloy.remus@cmu-edu. Clasical example is sand. Mamaia. MirceacelBătrân Street. Romania 2 Ovidius University of Constanta. tampu@ub. and high carbon steel K390. microhardness. The present paper analyses the experimental results concerning the residual stresses distribution generated by milling in surface layers as a function of materials proprieties and cutting speeds and the effect of such stresses distribution on the machined surface quality (surface flatness). aiming the influence of deformation force. pluteanu@yahoo. piece revolution as main parts of deformation process. upon the deviations of form. force. 600115. working parameters and working conditions. Mamaia.ro Abstract: Residual stress is generated by all technological operations that lead to material deformations. Department of Machine Manufacturing Technology. 39 . residual stress. From the obtained results it can be observed that high values of residual stress correspond to high values of surface microhardness. Key words: milling. SURFACE ROUGHNESS AND MICROHARDNESS PROCESSED BY COLD PLASTIC DEFORMATION Octavian Pruteanu & Constantin Carausu “Gheorghe Asachi” Technical University of Iasi. roughness.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. surface quality.com Processing technology by cold plastic deformation of important machine parts. Experimental tests were carried processing usher cold forming raceways of the outer and inner rings of a ball bearing medium sized. critical or insignificant. 700050. In the case of milling operations. surface layer. Romania Paper ID: A-4 RESIDUAL STRESSES GENERATED BY MILLING IN SURFACE LAYERS AND THE EFFECT OF THEIR DISTRIBUTION ON THE QUALITY OF THE MACHINED SURFACES Nicolae Catalin Tampu. the level and type of residual stresses depend on material chemical composition and mechanical proprieties. Abstract: Key words: cold plastic deformation. low roughness of machined surfaces and a higher productivity compared to mechanical working by cutting. Romania Corresponding author: Pruteanu Octavian. Calea Marasesti. It can be useful or detrimental. Iasi. Bacau. D. surface roughness and microhardness processed. down feed. flatness deviations. Bogdan Alexandru Chirita & Eugen Herghelegiu “Vasile Alecsandri” University of Bacău. while surface flatness deviations will be determined by the residual stress relaxation after the removal of the cutting tools. nr 157. Mangeron. Romania Corresponding author: Tampu Nicolae Catalin. Paper ID: A-5 INFLUENCE OF TECHNOLOGICAL FACTORS ON ACCURACY OF FORM. down feed. took a rapid development in recent time due to the size of shape of high precision. aluminium alloy AL 6061 T6. Three types of materials were analysed. carbon steel C4U5. 59A Blvd. But in this case the main effects of residual stresses distribution on the machined materials and parts were not extensively investigated. Were drowning diagrams of variation of parameters obtained and after mathematical modeling to establish dependency relations for determined the optimal working parameters. catalin. Gheorghe Brabie. ro Abstract: Paper presents the ultrasonic energy possibility in the reconditioning by powder metallization process. Metallization devices design are presented according to ultrasonic method activation for the ultrasonic field metallization process using metal powder. Romania Corresponding author: Gheorghe Amza. powder. Bucharest.6. 40 . filed.pub. IMST Faculty. amza@camis. Also.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Abstract: Key words: ultrasonic. A series of necessary elements used in ultrasonic system dimensioning are given and an ultrasonic system used in reconditioning process by plasma and grain metallization are presented. Paper ID: A-7 CONTRIBUTIONS REGARDING CALCULUS AND DESIGN OF AN ULTRASONIC SYSTEM USED IN PLASMA METALLIZATION Gheorghe Amza Politechnica University from Bucharest. Splaiul Independenţei no. IMST Faculty. sect. Advantages and disadvantages are studied for the following technological methods: additive material ultrasonic activation. Dan Florin Nitoi.6. field. Bucharest. Stress map inside material. Zoia Apostolescu. lost energy variation on length and volume unit are presented. plasma. Andrei Dimitrescu & Dan Gabriel Tasca Politechnica University from Bucharest. 313.ro Paper presents the calculus elements and construction for the ultrasonic system used in reconditioning process by metallization. a calculated ultrasonic system is modeled to work in resonance regime at the frequency f = 22 Khz. metallization.pub. Mamaia. amza@camis. Romania Paper ID: A-6 CONTRIBUTIONS REGARDING ULTRASONIC FIELD PARTICULARITIES USED IN AUTOMOTIVE METAL PARTS RECONDITIONING Gheorghe Amza. Splaiul Independenţei No. sect. Three ultrasonic separated methods of energy activation in the deposition metal zone are presented. 313. metallization. both additive and base material ultrasonic activation. Key words: ultrasonic. reconditioned metal piece activation. internal energy variation. Romania Corresponding author: Gheorghe Amza. filler material. base material ultrasonic activation. Because of machining restrictions and six thread worm this task require several problems solving. 700050. geometry and processing parameters were defined using graphical simulation. Stefan cel Mare blvd. Because of uniqueness of worm gear we decide to machine worm wheel using a fly cutter. straining. which profile. Abstract: 41 .ro Process of manufacturing worm gears used as spare parts comes with difficulties in determining worm gear and tools parameters and geometry. Paper ID: A-9 ASPECTS OF LOCALIZATION OF CONTACT AT THE MANUFACTURING OF WORM GEARS Gheorghe Plesu &Victor Stajilov “Gheorghe Asachi” Technical University of Iasi. Same method was used to localize contact pattern. This phenomenon points to the existence of more canals of discharging through which parallel currents of the same direction flow simultaneously. Blvd.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. ravic@ub. main role in this case has process of calculation of parameters. No. Mamaia.ro For going of the durability of the machining tools at the making of mild steel is proposed the advanced straining. In this paper we propose to present some of specific aspects on the combined splinting and deforming process on internal and external surfaces.. Romania Corresponding author: Ionel Raveica. Department of Engineering and Management of Industrial Systems. Romania. Republic of Moldavia “Vasile Alecsandri” University of Bacău. Abstract: Key words: roughness. 168. broach. valve rocker. Chisinau. Iasi. multiple extraction of conic meniscuses occurs. Mangeron. process which was applied in practice at the broaching the parts of holes valve rocker type. Romania Paper ID: A-8 CONSIDERATIONS ON ROUGHNESS PARAMETERS AT DEFORMATION AND SPLITTING PROCESS OF INTERIOR AND EXTERIOR SURFACES Alecsandru Marin1 & Ionel Crinel Raveica2 1 2 University of Moldova. 59A. Romania Corresponding author: Gheorghe Plesu. In this paper is presented the influence of process parameters on roughness processed It has been noticed that while the charging voltage on the battery of condensers increases till Uc = 80V. turning and milling process. Bacau. Calea Marasesti 157. So. plesu@tgh. viorel. 700050. 42 . In treeform process the blank sheet is placed under a flexibile rubber pad and it is deformed under the action of the hydraulic pressure applied from the top of the equipment. The part shape is given by the shape of the die located at the bottom of the equipment.paunoiu@ugal. Galati. regarding the influence of the fluid pressure towards the parts properties. work sample. Department of Manufacturing Engineering. numerical simulation. The paper will present in Modtech 2015 International Conference workload analyse due. 59A. Romania Corresponding author: Viorel Paunoiu. Blvd. machines or workers will be in the focus of workload measurements. assembling. FEM. In this analyse the delay sample technique have been used to identify and divide all bearing assemblers activities. Department of Machine Manufacturing Technology. Mamaia. Paper ID: A-11 RESEARCHES REGARDING THE HYDROFORMING PROCESS OF ALUMINIUM COMPONENTS Viorel Paunoiu Dunarea de Jos University of Galati. Mangeron.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Abstract: Key words: hydroforming. Romania Corresponding author: Laurentiu Dan Ghenghea. using finite element approach. No. to get information about time parts from 480 minutes day work time.ro In the paper are presented the researches made for studing the treeform process applyed to sheet metal parts from Al alloys. that take place in a big company with integrated bearings manufacturing processes. The developed study shows some ways to increase the process productivity without supplementary investments and also underlines directions to introduce automation to gain maximum productivity. In the paper are presented both the experimental and simulations results. The results could lead to the implementation of the die and equipment design procedure for such type of deformation. treeform sheet hydroforming. for a most part manual assembling process for roller bearings assembling process. 800008. Iasi. efficiency.
[email protected] The workload is the most important indicator for managers responsible of industrial technological processes no matter if these are automated. mechanised or simply manual in each case. Romania Paper ID: A-10 WORKLOAD ANALYSE OF AN ASSEMBLING PROCESS Laurentiu Dan Ghenghea “Gheorghe Asachi” Technical University of Iasi. Abstract: Key words: bearings. analyse. The parts quality is evaluated in terms of springback and stresses and strains state variation. workers allow to each activity. relative motions . workpiece. At that. tool. 58 Artema Street.ru The most modern method of enhancement of gear couplings running abilities is realization of space jointing between teeth of race cage and sleeving. Aleksandr Mikhaylov & Leonid Fenik Donetsk National Technical University. At the heart of this work there is task in determination of interrelation between geometry of side face teeth gear coupling sleeve with space geometry. 83001. standard cutting instrument which is available on enterprises can be used for toothing cutting with different types of space geometries including for processing of teeth gear coupling sleeves with geometry close to group space geometry. Mamaia. But for their realization in practice it is necessary to use special cutting tool. Methods of toothing cutting of cylindrical gearwheels with modified teeth on existing serial equipment are described in literature. Abstract: Key words: gear coupling. because it supposes continuous change of tooth thickness both longwise and throughout the height. universal tooth-cutting equipment on the enterprises can be used for getting toothings with geometries close to stated space geometries. Alongside with that. grubka_roman@mail. geometry of tool edge and trajectory of relative displacement of tool and workpiece in the space. They are based on displacement of tool either in radial or in tangential or simultaneously in radial and tangential directions against workpiece. People's Republic of Donetsk (DNR) Corresponding author: Roman Grubka. Donetsk. Structure of any teeth space geometry differs essentially from structure of teeth with rectilinear or curvilinear generator. 43 .ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. That`s why vital task is determination of interrelation between tooth gear coupling sleeve geometry with space geometry. method. Also there is jointing of race cage with rectilinear generator and sleeve with group space geometry on the side face of teeth which are able to compensate changeable drive shaft mounting misalignment. geometry of tool edge and trajectory of relative displacement of tool and workpiece in the toothing cutting process. Romania Paper ID: A-12 SHAPING OF TEETH GEAR COUPLING SLEEVES WITH GEOMETRY CLOSE TO GROUP SPACE GEOMETRY Roman Grubka. The aim of this work is to develop technological method of shaping of teeth gear coupling sleeves with geometry close to group space geometry using the method of breaking-in on the existing serial equipment with the help of standard cutting tool. In consequence of which. technological methods of toothing cutting with space geometry as a rule are based on observation of two conditions of the second Olivier method and imply usage of special technological equipment and cutting tool. space geometry. This circumstance is attributable to peculiarities of space geometries structure and kinematics of relative motions of tool and workpiece in the toothing cutting process. that is not always justified under conditions of this or that manufacturing. Caparica 2829-516. More than ever. sustainability. engineering decision. Environmental concerns have expanded the field of conceptual design through the introduction of sustaintability requirements that are driven by the growing of societal thoughtfulness about environmental issues. Faculdade de Ciências e Tecnologia. cost and time. Abstract: Key words: manufacturing processes. iv) to discuss how to introduce this matter in teaching both manufacturing technology and design of production systems. engineering education. This raises a concern that is related with the very nature of sustainability: the cross effects of the actions that are taken in the atempt to decouple the design solutions. Mangeron. legal concerns. 700050.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Universidade Nova de Lisboa. axiomatic design. production processes are designed in order to meet requirements of three different natures: quality. there is a need for a holistic view at any level of decision-making. The objectives of this parer are: i) to analyze some approach trends for the sustainability of the production processes. Mamaia. No. there has been a considerable amount of work addressing sustainability.fct. According to the Axiomatic Design Theory. Given the complexity of the problem that arises from the multiplicity of different kinds of factors. António Santos1. 44 . jmf@unl. iii) to make some proposals based on the Axiomatic Design Theory. 59A. Iaşi. Dumitru Nedelcu2. Campus de Caparica. In the latest years. Department of Machine Manufacturing Technology. On this matter. România Corresponding author: João Fradinho. the difficulty of establishing methods and tools to support decision-maiking in design is clearly understood when one attempts to quantify the results. Blvd. sustainable designs are usually coupled designs. from the establishment of the design requirements to the implementation of the solutions. Portugal 2 “Gheorghe Asachi” Technical University of Iaşi. which should be avoided.pt Usually. That work has focused mostly on environmental issues (for example. However. António Gonçalves-Coelho1 & António Mourão1 1 UNIDEMI & DEMI. those metrics or indeces usually have some overall lack of consistency. In terms of production. Romania Paper ID: A-13 SOME TRENDS AND PROPOSALS FOR THE INCLUSION OF SUSTAINABILITY IN THE DESIGN OF MANUFACTURING PROCESSES João Fradinho1. ii) to define sustainability in terms of requirements for the design of the production processes. one could say that the major concern has been the definition of metrics or indices for sustainability. one shoud clarify the characterization of the sustainability of production systems. setting limits of CO2 emissions). and the current engineering approaches are mainly related to the clarification of the factors that can impact the “goodness” of ecodesign. in order to establish the principles in which the guidelines for designing production processes must comply. Institute of International Collaboration. working insert life.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. France). cutting fluids. providing maximum working life of carbide insert with TiAlN-coating. These models take into account the physical and mechanical properties of machining and tool materials. 83001. the thermomechanical loading parameters of the cutting insert (contact pressure. Romania Paper ID: A-14 DETERMINATION OF THE WORKING INSERT LIFE IN MACHINING 100Cr6 HARDENED STEEL WITH CUTTING FLUIDS Aleksandr Mikhaylov1. Donetsk Corresponding author: Elena Sydorova. Based on the working insert life dependence of cutting parameters. Donetsk 2 Donetsk National Technical University. their contact interaction.com Machining of hardened steels primarily is associated with significant values of contact pressure. Elena Sydorova1 & Ilya Navka2 1 Donetsk National Technical University. 100Cr6. Department of Manufacturing Engineering. Abstract: Key words: cutting. contact shear and contact temperature in the contact zone of cutting tool. such as cutting fluids that is one of the leading position. due to the ease of use and relatively low cost. material behavior at large strains. thermomechanical loading. sydorova@gmail. 58 Artiom. 58 Artiom. An Arbitrary Lagrangian-Eulerian formulation method was used. contact shear and contact temperature) was determined on the basis of thermomechanical modeling of the cutting process by finite element method in the software SIMULIA/Abaqus (Dassault Systèmes. The developed method can also be applied to determine the cutting conditions and the combination of the cooling and lubricating actions of cutting fluids for other materials and cutting tools. including the phenomenon of work hardening. 83001. cutting conditions and cutting tool geometry. Thus. dynamic processes and heat-drawing process. To solve these problems the numerical models were used. The method for determining the cutting conditions and the combination of cooling and lubricating actions of cutting fluids in machining 100Cr6 steel (45 HRC) was proposed. the cutting conditions were identified that ensure maximum working life of carbide insert with TiAlN-coating. To change the thermomechanical loading of the cutting insert different methods of assisted machining are used. The obtained results of numerical simulation of the cutting insert loading primarily are explained by the response of the machining material to the effect of strain hardening. 45 . The working insert life corresponds to the volume of material removed cutting insert in tool life period. The cutting processes for the different cutting conditions and combination of cooling and lubricating actions of cutting fluids were simulated. Mamaia. strain rate and temperature as well as the nature of the tribological interaction with the cutting insert. The main actions of cutting fluids are the cooling and lubricating. Currently in machining of specifies materials widely used a carbide cutting inserts with TiAlN-coating. The insert tool life was determined by a regression equation of the tool life dependence of thermomechanical loading parameters. Republic of Moldova Corresponding author: Mazuru Sergiu. lubricating. Mamaia.04-0. 2004.utm. or 2-3 times compared to the initial rougness. The experiments were performed on several types of materials – Fe HB50. Increases the wear resistance and fatigue strength. Abstract: Key words: finishing. 168. Blvd. diamond smoothing. a_toca@mail. rougness. Stefan cel Mare Blvd. which in turn will lead to corrosion of parts and equipment. Chisinau. machining centers. which can lead to evaporation of acetic acid. Paper ID: A-16 COOLING LUBRICATION LIQUID METAL Sergiu Mazuru Technical University of Moldova. Hastelloy D. the new production conditions. The hardness is increased by 15-20%. Stefan cel Mare. MD-2004. steel to HRC60-62. No.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20.md Used for highly productive machines (machining centers). Chisinau. cutting. 46 . as well as possible damage to health conditions and upper respiratory tract infections. hard cover. hardness. Abstract: Key words: cooling. fluid. 168.01 mcm.md Finishing the functional surfaces of machine parts has a significant impact on their performance characteristics. mazuru@mail.. With increasing cutting speed and temperature increase. Department of Machine Manufacturing Technology. Republic of Moldova Corresponding author: Alexei Toca. When the diamond smoothing rougness of the machined surface is reduced to Ra=0. cooling lubricating fluid does not provide the desired roughness to increase cutting speed. Romania Paper ID: A-15 FINISHING SMOOTHING THE SURFACES OF PARTS Ion Dohotaru & Alexei Toca Technical University of Moldova – Republic of Moldova. Department of Machine Manufacturing Technology. com In this study. Our approach shows how we control the distance between the tip and the collector. as follows: polymer solution and ambient parameters. As simple as it may seem.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. automation. France Corresponding author: Valentin Buliga. Nr. polymer solution parameters. We are working in developing a solution for control and automation of the electrospinning process. from beaded fibers to fibers with pores on its surface. it consists in using an electrical charge to draw very fine fibers from a fluid solution. Iasi. and processing conditions which include the applied voltage. B-dul D. 11 rue Alfred Werner. Laurence Schacher2 & Antonela Curteza2 1 2 ”Gheorghe Asachi” Technical Univerisity of Iasi . Dominique C. Thus. modeling. The method to obtain nanofibers threw electrospinning has a rather simple operating principle.buliga@gmail. Romania Paper ID: A-17 PARAMETERS CONTROL AND AUTOMATION OF THE ELECTROSPINNING PROCESS Valentin Buliga1. combining different hardware parts and a software system to achieve a better control. 68093 Mulhouse Cedex. which we need to setup according to the results we want to obtain. effect of collector and the distance between the tip and the collector. actually there are many parameters that influence the morphology of the resultant electrospun fibers. Behind this challenge stands our goal represented in development of setups to yield fibrous structures of various forms and arrangements with improved physical and mechanical properties. EA 4365 UH. and after that we set the processing conditions according to the desired properties of the resulted nanofibers. Romania Laboratoire de Physique et Mécanique Textiles. Mangeron. During our researches we have been electrospinning using different polymer solutions. we analyze the parameters of the electrospinning process and explain how the process can be improved threw control of this parameters. 47 . ENSISA. First of all we have set the solution and ambient parameters. 67. Adolphe2. the parameters affecting electrospinning of polymer solution are of great interest for us. processing conditions. 700050. Abstract: Key words: electrospinning. valentin86. software system. Mamaia. changing the position of the collector. ambient parameters. and the benefits of having this function. Varying this parameters give us the opportunity to create setups to obtain improved fibrous structures of various forms and arrangements and to create nanofibers with different morphology. The parameters affecting electrospinning and the fibers can be classified. temperature. Mangeron. methods as: vapor chemical deposition at low pressure. The authors chose this method due to its advantages. Romania Corresponding author: Ana Bădănac. Abstract: Key words: cutting inserts AlTiN thin layers. 700050. Department of Machine Manufacturing Technology. badanac_ana@yahoo. Mamaia.com It is known that during the cutting processes. Adrian Ciprian Bălan & Mădălina Popa “Gheorghe Asachi” Technical University of Iasi. Octavian Lupescu. durability. Are known numerous coating processes regarding the increasing the durability of the used cutting inserts. namely by deposition of different materials. The depositions of aluminum and titanium materials are new coatings which consists in deposition of the compound solid of AlTiN in the form of vapor in thin layers on different tools or/and the cutting inserts. Vasile Manole. wear. to the high temperatures. No. compared to cutting inserts which were not coated with aluminum and titanium. Romania Paper ID: A-18 RESEARCHES TO ANALYZING THE DURABILITY OF CUTTING INSERTS COATED WITH AlTiN THIN LAYERS Ana Bădănac. they used deposition method by ionic plating in vacuum. to the relative velocities and shocks between the contact surfaces tool-part can lead to a wear more or less pronounced of the metal carbide cutting inserts. In the purpose of increasing the cutting inserts durability. which can be enumerate: the relatively low costs of the equipment. on surface of some metal carbide cutting inserts profiled. As a result of using this method was found a considerable increase of the durability for the metal carbide cutting inserts coated with aluminum and titanium materials (AlTiN). with a significant cost reduction. having protection role for the cutting inserts locating and clearance surfaces. vacuum thermal evaporation and condensation from the vapor phase. used in the cutting process. Iasi. have followed the deposition of aluminum and titanium materials (AlTiN) in thin layers. Researches made are useful for predicting the lifetime of metal carbide cutting inserts after application of thin films of AlTiN. pulverization. due to the high contact pressures. ionic plating. ionic plating. the simplicity in operation. 59A.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. the possibility to be used also to realize researches and industrial installations. Blvd. Researches carried out by authors in this paper. 48 . The article also shows inadequacy of this method to industrial uses and proposes use of equipment monitoring the condition of a tool using the self-learning systems. or determining whether the tool is sharp. In such an environment the evaluation of the tool‟s suitability for further machining. but they only describe turning-type tools (replaceable multi-blade plates). Obviously. It consumes large financial outlays. However. Presents the concept of building the system of monitoring. Romania Paper ID: A-19 LIFE AND WEAR OF MONOLITHIC CARBIDE MILLS Piotr Wittbrodt & Alfred Paszek University of Technology Opole. operating and sharpening machining tools. Applying very high machining velocities. p. This is mainly related to purchasing. The period of their use is highly dependent on machining parameters.wittbrodt@po. 60 ÷ 70%. The difficulty lies in describing the wear of ball surface. Tool costs influence general costs of product manufacturing to a large extent. This paper presents the results of investigation of wear mills of monolithic carbide using the indexes method. 49 . Poland Corresponding author: Piotr Wittbrodt. This problem needs paying attention to because of numerous uses of cutting mills. diagnosis and prediction ball milling cutters. Ozimska 75 Street. large feed values. are quite difficult. It is assumed that several percent of all operations are milling operations.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. 45-370 Opole. This constitutes a barrier to increasing the effectiveness of machining process. This participation increases year by year. as well as limitation or complete elimination of working liquids may cause the life of tools to be small. Abstract: Machining is the commonest method of forming objects from among all applied techniques of mechanical manufacturing and constitutes ca.opole. This especially refers to ball milling cutters. A pivotal point is operating tools. Mamaia. there is a problem in the evaluation of the tool‟s wear. that is why we aim at selecting the most rational machining conditions.pl. It is confirmed by practice that in small lot or mass production enterprises a tool is used for machining various parts with the use of absolutely different machining parameters. which can work with a part of machining edge or on the whole length of the arch. many works hale published on the life and wear of machining tools. Prolonging the life of a tool is a basis for the decrease of production costs. ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. The studys that were taken place helped us.25 Mpa to a range of 0. with working values parameters ranging from 1. dielectric pumping pressure of 0.7 to 1.25 [mm]. by improving the electroerosion machining time for assuring that the implant offers enough support as a result of stress shielding. Faculty of Engineering. Romania Corresponding author: Nicodim Vlad Mihai.2 [µm]. with levels ranging from 0. machining parameter. Calea Marasesti 157. EDM. This research has as objective. for an improving result.25] due to the fact that good results were taken for more less hights before. Mamaia.5 Mpa method combined with sinking method. rotative toll wear should to be taken in consideration for further investigations in this case.com The main purpose of this paper is to determine the surface roughness value due to modification of the electrodischarge machining parameters.4 [A] to 40 [A]. The depth of cut was taken in consideration to be not as high [0. the surface roughness is limited not less than 0. Romania Paper ID: A-20 THE INFLUENCE OF ELECTRODISCHARGE MACHINING PARAMETERS ON THE MATERIAL SURFACE ROUGHNESS OF TITANIUM ALLOY Vlad Mihai Nicodim. due to the machining operations conducted on Ti alloy. 600115. Gheorghe Brabie & Cosmin Constantin Grigoraş ”Vasile Alecsandri” University of Bacau. for obtaining a suitable precision manufacturing to be used as temporary or long term bone implant. 50 . surface roughness. that in the case of Ti alloy. titanium alloy. enough to indicate that the use of electroerosion machining is suitable for biomedical Ti alloy. The machining time remains the main factor that influence surface roughness. The evaluation of the surface roughness was made by measuring the roughness absolute value [Ra]. to understand. Bacau.vboy@gmail. niko. using copper and graphite electrode wear tool. to follow variations of surface imperfections of surface roughness.7 using the Fem 110 CNC. at a voltage starting from 110 [V] and a depth of cut of 0. Abstract: Key words: electrodischarge. the same values parameters of machining were managed to be worthy trying working with. 25] due to the fact that good results were taken for more less hights before. enough to indicate that the use of electroerosion machining is suitable for biomedical Ti alloy. Romania Paper ID: A-21 THE INFLUENCE OF ELECTRODISCHARGE MACHINING PARAMETERS ON THE MATERIAL HARDNESS OF TITANIUM ALLOY Vlad Mihai Nicodim. to understand. stress shielding.4 [A] to 40 [A]. the same values parameters of machining were managed to be worthy trying working with. Romania Corresponding author: Nicodim Vlad Mihai. at a voltage starting from 110 [V] and a depth of cut of 0. titanium alloy. dielectric pumping pressure of 0. Bacau. machining parameter. due to the machining operations conducted on Ti alloy. Calea Marasesti 157.com Abstract: The main purpose of this paper is to determine the surface hardness value due to modification of the electrodischarge machining parameters. Mamaia. Key words: electrodischarge. The studys that were taken place helped us.25 [Mpa] to a range of 0. using copper and graphite electrode wear tool. hardness. The machining time remain a main objective to be taken in consideration for further investigations in this case. EDM. that in the case of Ti alloy. The surface hardness of the alloy was determined based on the Vickers scale [HV]. This research has as objective. for obtaining a suitable precision manufacturing to be used as temporary or long term bone implant. to follow variations of surface imperfections of surface hardness. Faculty of Engineering.5 [Mpa] method combined with sinking method. 51 . the surface hardness can be significantly improved not more under the deph of 0. The depth of discharging was taken in consideration to be not as high [0. for an improving result. by improving the electroerosion machining time for assuring that the implant offers enough support as a result of stress shielding. with working values parameters ranging from 1.7 [mm].
[email protected] International Conference Modern Technologies in Industrial Engineering June 17-20.25 [mm]. Gheorghe Brabie & Cosmin Constantin Grigoraş ”Vasile Alecsandri” University of Bacau. 600115. surface layer. Bogdan Alexandru Chirita. the use of different cooling liquid types. In order to make this analysis a MQL cooling device is used. Romania Corresponding author: Tâmpu Nicolae Cătălin. Surface roughness. The aim of this study is to analyze the effect of the cooling liquid used in different mixtures with water at different temperatures on the quality of surface layer processed by milling. milling. Gheorghe Brabie. etc. and 27 °C. The deviation from surface flatness and surface roughness were influenced by the use of mixture in equal proportion at 6°C. Romania Paper ID: A-22 INFLUENCE OF THE COOLING LIQUID ON THE SURFACE QUALITY CHARACTERISTICS IN MILLING Nicolae Catalin Tampu. Bacau. such as tool wear and deterioration of surface layer quality. For this reason. Eugen Herghelegiu & Maria Crina Radu University “Vasile Alecsandri” of Bacău. Mamaia. Three temperatures were used for the cooling liquid 6°C. Cooling system and liquid characteristichs are among the main factors that can influence the suraface quality and tool wear. MQL cooling system. The optimum conditions were determined using design of experiments methods. Abstract: Key words: surface quality. use of different geometries of the cutting tools. The combination with pure water was made in order to decrease production costs. cooling liquid temperature.tampu@ub. Calea Marasesti. 52 . 50% water and 50 % emulsion.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. catalin. nr 157. From the obtained results were observed that cooling liquid with 25% water and 75% oil will lead to a high value of hardness (165 HV) at 6°C while the use of ambiental temperature cooling liquide (27 °C) lead to smallest value of hardness (108 HV). many studies from the scientific literature are concentrated on the optimisation of cutting parameters.ro Several negative aspects may occur in high speed milling machining. 75% water and 25 % emulsion. 600115. Cooling liquid composition was varied (pure water / water miscible coolant type TS 30 PT) as follows: 25% water and 75 % emulsion. 12°C. hardness and deviation from surface flatness are analised. The two cases presented needed to be checked for the reinforcement design and reinforcement welding calculus.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. rain and snow. vpomazan@univ-ovidius. The main issues of such structures is the stability of certain segments. The solid model of the tube built in Autodesk Inventor® was exposed to FEA. for rather big gas volumes needed. 124 Mamaia. 900527. An equivalent welded reinforcement‟s grid design was developed and checked for stability. Custom and empirical reinforcements are designed if section quotient is larger than the material (austenitic steel) thickness. temperatures under 100°C and are built in open air. Mamaia. exposed to wind. Pomazan. Optimal welding sections along ribs in longitudinal and transversal directions were calculated and reported for better project management and further costs calculus. The present study was triggered by the need to verify and optimize the primary constructive solution. under the gravity and natural loads. The primary structural calculus of such tubes takes into account the general geometry of the shell-like structure and promts for holders and props.ro Several gaseous media are transported in non-standardized piping. Abstract: Key words: reinforced tubes. Given the complex tridimensional geometry of the axisymmetric shell structures. buckling. These tubes work with gas at normal pressures. The transversal ribs that bring extra charge in terms of gravity load and manufacturing costs were optimally distributed for the given tube geometry. using custom designed large. with its actual thickness. 53 . as the site topology requires certain tube length and geometry. Constanta. A corresponding thickness was calculated against static and buckling loads. searching for static and buckling loads the best reinforcement distribution and minimum displacement. in the stress safe zone. FEA static. the basic shape of the tube was modelled. reinforced tubes. Romania Paper ID: A-23 ANALYSIS OF LARGE SHEET METAL TAILORED TUBES Valentina Mihaela Pomazan Ovidius University of Constanta. for tubular and rectangular shaped large tubes (section lengths larger than 1000 mm). Romania Corresponding author: Valentina M. Shell elements with optimized grid distribution were used and local stress in corners and reinforcement ribs was checked with refined discretization and optimal convergence. 111. Faculty of Engineering. In order to prove the quality of method. Abstract: Key words: surface enveloping. hob mill.. The graphical method presented in this paper is developed in two stages: determining of the rack-gear model based on the solid model of the surface to be generated. Faculty of Engineering. can be a single common point. Mechanical Engineering Department. the analytical and graphical solutions are comparatively presented. Romania 2 “Dunărea de Jos” University of Galaţi. cycloidal worm.ro The hob mill for generating ordered curls of cycloidal surface with non-involute profiles may be profiled based on the fundamental theorems of surface enveloping – Olivier – as surface reciprocally enveloping with point-like contact. Galaţi. using an original algorithm. even for a simple analytical expression of the flank to be generated. The analytical solution is based on the principle of intermediary surface – generating rack-gear – tool that has linear contact with each of the two surfaces: the surface of ordered curl of helical flanks and the surface of hob mill‟s flank. virgil.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. the generating rack-gear. 800201. in this case between the enveloping surface the contact is linear. Mamaia. 54 . No. are defined two distinct characteristic curves. Nicuşor Baroiu1 & Nicolae Oancea 1 1 “Dunărea de Jos” University of Galaţi. The two characterisctic curves can be in three different situations: are identical and everlapped. Department of Manufacturing Engineering. Romania Corresponding author: Virgil Gabriel Teodor. for surfaces in enveloping with point-like contact or does not exist a contact point – the surface are not in enveloping. both of them belongs to the intermediary surface. 111. The analytical solution is difficult to obtain. Domnească Str.teodor@ugal. No. Silviu Berbinschi2. Domnească Str. following this. An application for a cyloidal worm is presented – a central screw of helical pumps.. graphical profiling method. 800201. In this paper is proposed a methodology based on a complementary theorem of the surface enveloping. In these conditions. in a graphical expression developed in a graphical design environment – CATIA. Galaţi. On the solid model of the rack-gear are drawned the two characteristic curve and is determined the contact point. Romania Paper ID: A-24 GRAPHICAL METHOD FOR PROFILING HIB MILL THAT GENERATE CYCLIODAL WORMS Virgil Gabriel Teodor1. based on 3D modelling is determined the solid model of the primary peripheral surface of the hob mill. ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. neural network. V – shaped part. Mamaia. in which the blank holder force varies linearly in four steps between 30 and 60 kN.9 software was used to simulate the forming process. Bacau. optimization. 157. factorial plan. The inconvenient of this method is the large number of simulations tests that must be done and the large amount of data necessarily as input for the NeuroSolution software. The precision of this method depends on the number of simulation tests used by the neural network to learn the part behavior after the springback. Faculty of Engineering. The optimized blank holder force is used to make another simulation and in the final part of the paper is presented a comparison between the springback parameters predicted by the NeuroSolution software and the parameters obtained by simulation. The current paper is trying to prove out the important role of the blank holder force variation during the forming process. chamfer radius between part bottom and sidewall or chamfer radius between sidewall and flange are recorded in a data base. The Dynaform 5. angle between sidewall and part bottom. The presented optimization method is a good method to reduce the springback effect.ro In case of sheet metal forming the main dimensional errors are caused by the springback phenomenon. No. Calea Mărăşeşti. function to the initial forming parameters. The part obtained after each simulation is analyzed and measured to quantify the errors caused by springback. Romania Paper ID: A-25 OPTIMIZATION OF THE BLANK HOLDER FORCE DURING FORMING PROCESS OF A V – SHAPED PART Aurelian Albut “Vasile Alecsandri” University of Bacau.0 software and 72 simulations were necessarily to cover completely the variation domain. 55 . Parameters as: angle between flange and sidewall. The factorial simulations test plan was made using the Design Experts 7.shaped parts. This software is able to learn the part behavior after the forming process and to optimize the variation of the blank holder force in such way to minimize the springback effect. Abstract: Key words: deep drawing. 600115. The initial simulations plan together with the generated data base is loaded in a neural network software called NeuroSolution 5. The present work deals with numerical simulation related to draw bending and springback of V . Romania Corresponding author: Aurelian Albut albut_aurelian@ub. Konarskiego 18A. The analysed system is the robotized workcell consisting of: machine tools. 44-100 Gliwice. optimization and implementation. resources. This is why in the paper is presented the application of such developed environment like Siemes NX to create the virtual model of a production system and to simulate as well as optimize its work. Optimization is generally management actions that are ultimately bring savings in time. 56 . Optimization consists primarily of organizational activities that require very little investment. zbigniew. raw materials and improve the performance of a specific process. Optimizing the savings generated by improving and increasing the efficiency of the processes. It does not matter whether it is a service or manufacturing process. but also influence the improvement of health and safety within the company and contribute to the implementation of more efficient rules for standardization work in the company. optimization. auxiliary equipment and buffers. not only imply a stable position of the company in the sector.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. or rely solely on the changing organization of work. Poland Corresponding author: Zbigniew Monica. Mamaia. conveyors. the only thing which could be achieved is larger or smaller improvement of the process. to optimize both the object trajectory and the cooperation process. Faculty of Mechanical
[email protected] Optimization of the production process is an element of the design cycle consisting of: problem definition. using this tool. Without the use of simulation techniques. Modern methods of production management. the best result it is possible to get for the conditions under which the process works). Romania Paper ID: A-26 OPTIMIZATION OF THE PRODUCTION PROCESS USING VIRTUAL MODEL OF A WORKSPACE Monica Zbigniew Silesian University of Technology. This trend is due to the high competitiveness among companies that want to achieve success are forced to continually modify the ways to manage and flexible response to changing demand. Modern companies operating in a market economy shows a significant increase in interest in modern methods of production management and services. It is possible. In the program could be defined the control program realizing the main task in the virtual workcell. industrial robots. simulation. modelling. not the optimization (ie. Abstract: Key words: robotised workcell. Institute of Engineering Processes Automation and Integrated Manufacturing Systems. simulation. Pitesti. Using the fuzzy logic. The fuzzy output is defuzzified to get crisp value of the RPN that will be used for a more accurate ranking of the potential risks. Its role in education is defined by its interchangeable control systems. reasonable risk assessment. A new risk assessment system based on the fuzzy set theory and fuzzy rule base theory is to be applied to assess and rank risks associated to failure modes that could appear in the functioning of Turn 55 Lathe CNC. identifying. Romania Paper ID: A-27 AN IMPROVED METHOD FOR RISK EVALUATION IN FAILURE MODES AND EFFECTS ANALYSIS OF LATHE CNC Nicoleta Rachieru. Two case studies have been shown to demonstrate the methodology thus developed. In this paper. the probability of occurrence of a failure mode (O) and the probability of a failure being detected (D). This dual purpose turning centre is the ideal solution for training students in further education when large industrial machines are not suitable. nr. O and D. trapezoidal or triangular fuzzy numbers. Targu din Vale. the risk priorities of failure modes are determined by using risk priority numbers (RPNs).1. inputs. As a result. The fuzzy logic toolbox of Matlab software program has been used in calculating the values of RPN. the stability of product and process can be assured. Nadia Belu & Daniel – Constantin Anghel University of Pitesti. Romania Corresponding author: Nadia Belu. fuzzy inference system. are used to assess the ratings and weights for the risk factors S. linguistic variables. designs. process.
[email protected] International Conference Modern Technologies in Industrial Engineering June 17-20. are fuzzified and evaluated in a fuzzy inference engine built on consistent base of IF –THEN rules. Str. 110040. In traditional FMEA. RPN number includes three factors: the severity of a failure effect (S). Mamaia. It is illustrated a parallel between the results obtained by the traditional method and fuzzy logic for determining the RPNs.com Failure mode and effects analysis (FMEA) is a widely used risk assessment tool for defining. Department of Manufacturing and Industrial Management. expressed in Gaussian. However. the three risk factors. and services. The Concept Turn 55 is a desktop lathe driven by interchangeable CNC control Software running on a commercially available PC. and eliminating potential failures or problems in products. the crisp RPN method has been criticized to have several deficiencies. risk evaluation. Faculty of Mechanics and Technology. Turn 55 Lathe CNC. 57 . The results show that the proposed approach can reduce duplicated RPN numbers and get a more accurate. Abstract: Key words: failure mode and effects analysis. Each factor uses a numeric scale (rating) from 1 to 10. ModTech International Conference Modern Technologies in Industrial Engineering June 17-20, Mamaia, Romania Paper ID: A-28 QUALITY CONTINUOUS IMPROVEMENT OF PRODUCTION PROCESSES WITH USAGE THE POKA-YOKE METHOD Nadia Belu 1, Laurenţiu Mihai Ionescu 2, Agnieszka Misztal 3 & Alin Mazăre2 1 University of Pitesti, Faculty of Mechanics and Technology, Department of Manufacturing and Industrial Management, Str. Targu din Vale, nr.1, 110040, Pitesti, Romania 2 University of Pitesti, Faculty of Electronics, Communcations and Computers, Department of Electronics, Computers and Electrical Engineering, Str. Targu din Vale, nr.1, 110040, Pitesti, Romania 3 Poznan University of Technology, Faculty of Engineering Management, 60-965 Poznan, ul. Strzelecka 11, Poland Corresponding author: Nadia Belu,
[email protected] Abstract: Poka-yoke is a method of quality management which is related to prevent defects from arising during production processes. It deals with “fail-safing” or “mistake-proofing”. This method helps operator to avoid (yokeru) mistakes (poka). The Poka-yoke concept was generated and developed by Shigeo Shingo for the Toyota Production System. Poka-yoke is used in many fields, especially in monitoring production processes. In our case, the solution presented in this paper aims at optimizing the production process of pistons engines by reducing faults caused by the threading operation. The solution proposed by us has gone from an analysis of the process on the time interval required for threading operation for several samples of pieces and also, it is included a personal shift. It is a threading process by pressure applied to the piston with handling equipment and parts are made by a human user. There were also analyzed the problems that arose during the process. We're talking about the human operator inadvertently omitting certain steps in the process of threading. Based on these data, we designed a poka yoke system that detects whether a particular operation is omitted, this is signaled operator (visual alarm) and continuing the thread is suspended until the problem is corrected. Our system is based on the use of a weighing as a parts counter. Although in the threading process does not occur weight change of finished parts, the stand where the finished pieces are placed is mounted on the weighing. Placing a finished part leads to weight gain of the stand, which is signaled to our system. Also, there are two sensors placed at different points of the press: support for placing the piece in the press and the press operating lever itself. These sensors allow monitoring by our system of steps to be taken in the process. The aim of our system is to pursue the correct sequence threading process: placing the piece in the press, the operation and placing pieces in the finished parts stand. Along with correct sequence monitoring our system must deal with registration operations and treatment of special cases: the operators‟ exchange, the exchange of a finished pistons stand and testing of samples. Key words: quality management, mistake proofing, Poka-Yoke method, quality improvement. 58 ModTech International Conference Modern Technologies in Industrial Engineering June 17-20, Mamaia, Romania Paper ID: A-29 APPLICATION OF MULTIOBJECTIVE METHODS FOR OPTIMIZATION OF MACHINING PROCESS PARAMETERS Cătălin Gheorghiță & Vlad Gheorghiță Politehnica University of Bucharest Romania, Department of Manufacturing Technology Splaiul Independeței, No. 313, 060042, Bucharest, Romania Corresponding author: Cătălin Gheorghiță,
[email protected] Abstract: The determination of optimal cutting parameters, is important in increasing the productivity of the machining operations.The response surface methodology which sets the relationship between factors and response, was used for developing the objective function and constraints for determine the models of power milling. The selection for a given problem is made by using methods of multiobjective decision making (MODM) to eliminate unsuitable alternatives, and to select the most suitable alternative. In this paper the methods are used to identify the best solution for the mathematical model of cutting power for milling 30Cr130 Steel. Key words: decision making, SAW method, TOPSIS method, ARAS method, multi-objective optimization, milling. Paper ID: A-30 THE DISTRIBUTED AGENT-BASED APPROACH IN THE EMANUFACTURING ENVIRONMENT Agnieszka Sękala, Gabriel Kost, Wacław Banaś & Anna Dobrzańska-Danikiewicz Silesian University of Technology, Institute of Engineering Processes Automation and Integrated Manufacturing Systems, Faculty of Mechanical Engineering, Konarskiego 18a, 44-100 Gliwice, Poland Corresponding author: Gabriel Kost,
[email protected] The deficiency of a coherent flow of information from a production department causes unplanned downtime and failures of machines and their equipment, which in turn results in production planning process based on incorrect and outdated data. All of these factors entail, as the consequence, the additional difficulties associated with the process of decision-making. They concern, among other, the coordination of components of a distributed system and providing the access to the required information, thereby generating unnecessary costs. The use of agent technology significantly speeds up the flow of information within the virtual enterprise. This paper includes the proposal of an agentbased approach for the integration of processes within the virtual enterprise. Abstract: Key words: agent, multi-agent systems, e-manufacturing. 59 ModTech International Conference Modern Technologies in Industrial Engineering June 17-20, Mamaia, Romania Paper ID: A-31 INVESTIGATION SMOOTHING SHAFT CHARACTERISTICS Gayrat Bahadirov & Abdusalom Abdukarimov Scientific research center by branch engineering science problems after Tashkent State Technical University, Durmon Yuli Str., 31, 100125, Tashkent, Uzbekistan Corresponding author: Gayrat Bahadirov,
[email protected] This paper deals with the screw shaft smoother with blades when it is on the surface of the sheet material, which in turn rests on the conveying surface of the conveyor moving at a constant forward speed, or on the surface of the working shaft rotating with a constant angular velocity. Blades of smoothing shaft and the sheet material is contacted at several points (here, a point is meant pad formed smoothing blade edge and the shaft surface of the sheet material) positioned on one straight form of the cylindrical outer surface of the blades. The number of points depends on the number of contact blades and the width of the sheet material. The length of the chord of each arc trochoid movement of the sheet material corresponds to the processing time for one blade of smoothing shaft, i.e. feeding the sheet material is equal to one blade. It was established that the presence of multiple blades on the smoothing shaft chord length is inversely proportional to the angular velocity of the smoothing shaft, number of blades and is directly proportional to the feed rate of the sheet material. Comparing the results obtained, it was found that the length of the chord of each arc trochoid corresponding movement of the sheet material during processing with one blade of smoothing shaft, i.e. feeding the sheet material on one blade smoothing shaft at the same flow rate in the second case is less than the first. Next, consider smoothing shaft with variable pitch screw blades. We derive equations describing the trajectory of the curve of the blade faces relative to the surface of the processed sheet material for the case in which the linear velocity of the blade faces of smoothing shaft and the sheet material are the same and are directed oppositely. The results allow, depending on the technological requirements for certain mechanical operations, scientifically select options of smoothing shaft. Based on research developed a smoothing device for semi-finished leather to optimize machine performance, quality and yield of usable area of semi-leather. Abstract: Key words: smoothing shaft, sheet material, speed of material. 60 ModTech International Conference Modern Technologies in Industrial Engineering June 17-20, Mamaia, Romania Paper ID: A-32 MANUFACTURING AND DESIGN OF THE OFFSHORE STRUCTURE FROUDE SCALE MODEL RELATED TO BASIN RESTRICTIONS Ionut Cristian Scurtu Constanta Maritime University, Constanta, Romania Corresponding author: Ionut Cristian Scurtu,
[email protected] In this article are proposed some new solutions for manufacturing three columns offshore scale models using CFD/CAE software. The three column offshore is part of the WindFloat Project already realized as prototype for wind energy extraction in water depths more than 40 meters, and the actual model will not consider the wind turbine. The model will have heave plates for a smaller heave motion in order to compare it with the case without heave plates. The heave plates will be part of the Froude scale model. The scale model will be tested in basin of University”Dunarea de Jos” Galati and all basin restriction will be applied to the design. Using a smaller model will determine a smaller heave motion and this will affect predictions of the vertical movement of the three column offshore structure in real sea. Froude criterion will be applied to determine time and speed an acceleration scale. The scale model is manufactured from steel and fiberglass and all parts are subjected to software analysis in order to get the smallest stress in connections inside the model. Software 3D analysis will present steel and fiberglass connections and strengthening ways in order to obtain a rigid body after building the model. The Fiberglass and steel model will be developed in order to respect Froude criterion and all basin restrictions presented in the paper. The model is developed especially for heave motion analysis for three column offshore structure in basin conditions of University”Dunarea de Jos” Galati. Model mass will be restricted by scale dimensions and also the vertical position of centre gravity (VCG) will be considered during the manufacturing and design process of the Froude scale offshore structure. Maximum allowed mass in University”Dunarea de Jos” Galati basin is 200kg, the basin breadth is 4 meters and all conditions must converge in model manufacturing and design in order to get the best results to compare with real sea states and heave motion data. The considered reasons for the solutions are related to basin test restrictions and are exactly satisfy the boundary conditions and compared to those found in the literature. Also, a complex comparative study for modern manufacturing and design solutions is presented. Abstract: Keywords: Froude scaled model, offshore structure, basin test, CFD/CAE software. 61 ModTech International Conference Modern Technologies in Industrial Engineering June 17-20, Mamaia, Romania Paper ID: A-33 THE METHODS AND TECHNOLOGIES OF INCREMENTAL FORMING Costel Catalin Coman Technical University “Gheorghe Asachi” of Iasi-Romania, Department of Machine Manufacturing Technology, Blvd. Mangeron, No. 59A, 700050, Iasi, Romania Corresponding author: Costel Catalin Coman,
[email protected] Abstract: Incremental sheet metal forming is a technique which uses CNC tools to form sheet metals. The method is not applicable for mass production but found to be very useful in small batch quality production. The study includes fundamentals of incremental sheet metal forming, classifications, tools used and effect of various parameters such as plane anisotropy, tool size and shape, lubrication on it. The study also includes the advance methods incorporated in incremental sheet forming such as doubly curved surfaces .The multi-pass single point incremental forming is a promising technology for the sheet metal forming process, characterized by high formability, product independent tooling and great process flexibility. In this work, based on a pyramidal shape, a finite element model for the multi-pass forming process is established first. Unlike simplifications in previous studies, with the process of three-dimensional coordinates in numerical controlled machining code, the tool trajectory in this finite element model is obtained by a java parameterized application, based on a simple algorithm developed especially for the multi-pass single point incremental forming process. Two forming methods are applied to form the goal product: the multi-pass and the single-pass method. The final geometric profiles obtained are studied. Then an investigation of the thickness and maximal equivalent stress distribution is carried out. It makes it possible to locate and analyses the most critical areas and establish a comparison between the single-pass and the multi-pass process. The effect of the asymmetric nature of the initial sheet on the thickness and the maximal equivalent stress variation is also discussed. It's concluded that the tool path generation method is fast and easy to be implemented in finite element code for such investigation. Both the multi-pass and the single-pass method produce critical thickness and stress areas in the final shapes, but not the same in term of value and position. Moreover, the difference between the two forming methods in term of thickness distribution depends on the wall size. This process has been promising a flexible and inexpensive way to form sheet products. Which have important industrial applications with a high ratio of weight/strength.Singlepoint incremental forming (SPIF) uses one small hemispherically ended tool moving along a predefined toolpath to locally deform a completely peripherally clamped sheet of metal such that the sum total of the local deformations yields the final desired shape of the sheet. While SPIF is characterized by greater formability than conventional forming processes, it suffers from significant geometric inaccuracy.Accumulative double-sided incremental forming (ADSIF) is a substantial improvement over SPIF in which one hemispherically ended tool is used on each side of the sheet metal. The supporting tool moves synchronously with the forming tool, therefore acting as a local but mobile die. ADSIF results in considerably enhanced geometric accuracy and increased formability of the formed part as compared to SPIF. In light of the aforementioned advantages of ADSIF as compared with SPIF, an investigation of the mechanics associated with the ADSIF process, which has yet to be presented in the literature, is warranted.The present study sheds light on the differences in deformation mechanisms between SPIF and ADSIF. Finite element analyses are performed to simulate deformation in the two processes, and a detailed analysis of the deformation history is presented. It is shown that the presence of the supporting tool in ADSIF elicits substantial differences in the plastic strain, hydrostatic pressure, and shear strains as compared to SPIF. The implications of these trends on the prevalent modes of deformation in ADSIF along with possible explanations for increased formability observed in the process are discussed. Key words: SPIF, ADSIF, finite element analyses, pyramidal shape, multi-pass forming process. 62 Within this context. glass cullet. eco-friendly. No. 8100166. authors prepared this input image using different software for obtaining the mould. in order to meet customers‟ requirements. Romania Corresponding author: Camelia Neagu-Cogălniceanu. No. Department of Machine Manufacturing Technology. sometime. Flat glass post-industrial cullet (soda-lime glass) was collected from a glass processor and was processed using glass slumping technology into an electrical furnace. Mould manufacturing was derived from a single photography provided by the customer. 123. mould design and manufacturing. more expensive due the following causes: precarious infrastructure for waste management (recovery procedures. recycling and treatment facilities). 1 tonne of recycled glass saving approximately 1. for instance in case of glass. Brăila.com Abstract: In last decades. Mamaia. the complexity of the implementing process. Str. the use of recycled glass cullet leads to a number of environmentally friendly advantages: the correspondent cost for energy when is used glass cullet drop between 2-3% for every 10 % recycled glass used in the glass manufacturing process comparing to produce glass from virgin raw materials.2 tons of raw materials and 315 kg of CO2 emissions. 59A. The presented method for converting glass cullet in value-added products (in presented example. proideastrade@yahoo. In order to obtain dimensions requirements. the industries specialized in custom made products has to manufacture many products in low volume or unique pieces in economically viable manner. the availability of this resource). Based on this photography. On the other hand. Romania Paper ID: A-34 RECYCLING OF GLASS CULLET IN DECORATIVE GLASS PANEL Camelia Neagu-Cogălniceanu1. glass. it was necessary processing by slicing the STL file into three layers. glass waste. in actual times.decorative glass panel) have many benefits like these: reduced energy compared with the classic route for re-melting. simultaneously with the urban and industrial development of communities. 63 . Rapid Prototyping (RP) has been identified as an innovative manufacturing technology. The aim of this paper is to present the possibilities of subtractive rapid prototyping technology in development of moulds used for glass slumping process and to demonstrate the advantages and disadvantages of this technology on a practical example. The main difficulty for this task consist in the fact that the total cost of waste processing is. The increasing quantities of generated waste and the variety of waste lead to development of new technologies for processing them and incorporating in new products. Râmnicu-Sărat. possibility of obtaining ecofriendly products derived from glass waste. Mangeron. 2 1 “Gheorghe Asachi” Technical University of Iaşi. Key words: glass recycling. recycled glass. sorting plants. glass slumping. the issue of waste management became a significant challenge. subtractive rapid prototyping. Blvd. the long distance between glass cullet processors and the companies which can use this raw material. In addition. Romania 2 Pro Ideas Trade SRL.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Iaşi. Glass waste requires important cleaning/processing before it reaches the quality criteria needed to be used from glass manufacturers for re-melting into new glass products. 700050. Serbia 2 Corresponding author: Anja Terzić. The fly ash used in the experiment was thoroughly analyzed. Ljubiša Andrić2. 11000 Belgrade. 11000 Belgrade. followed by comparison of SEM microphotographs of initial and activated ash. Romania Paper ID: A-35 ENERGY TRANSFER AND CONVERSION RECORDED ON MECHANICALLY ACTIVATED FLY ASH GRAINS Anja Terzić1. Franchet d‟Esperey 86. 64 . The influence of the mechanical activation procedure parameters on the grain-size distribution related characteristics of the lignite coal ash was discussed. Following the proposed operating hypothesis of the automatic grain counter. Mechanically activated grains are the most convenient mineral form for physical concentration since the energy change that occures in the system millmaterial is recorded on them. Serbia Institute for Technology of Nuclear and other Raw Mineral Materials. The characteristics of the mechanically activated fly ash and the possibility of the fly ash grain inertia measurement by means of automatic grain counter (AGC) were also investigated and presented in this paper. the energy and the properties of fly ash grains induced by mechanical force were expressed in the form of the grain inertia change.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. ceramic materials.rs The investigation was conducted with an aim to increase the reactivity of the lignite coal fly ash originating from the power-plant filters and to establish the optimal mechanical activation period. and finally establishing the upper limit of activation period. primarily by means of the X-ray diffraction method for a reliable identification of the crystal phases and change in crystallinity. In order to obtain complete insight into the process and phenomena of the fly ash activation. a good understanding of the theoretical principles of the procedure is necessary. Ljiljana Miličić1 & Zagorka Radojević1 1 Institute for testing of materials. particularly in its activated state. An increase of potential energy of the activated grains was measured by means of an automatic grain counter (AGC). grain size. recycling. Bulevar vojvode Mišića 43. anja. Abstract: Key words: milling. mechanical activator. Mamaia.terzic@institutims. Romania Corresponding author: Andrei Preda. Calculation will reveal that the Coefficient of Performance is increasing together with the increase of the generating temperature values. 900663. started with the presentation of the typical ejector design. The working fluid considered in this research is Freon R134a. an ejector refrigeration system shows an inferior performance. Also. the best COP value being 0. The developed study is focused on the effect of generating temperature variation on the Coefficient of Performance (COP) and on the work input to the pump when the cooling effect. In this respect. the condensation temperature. a great challenge being expressed by attempts in energy savings in this sector.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. The generating temperature varies in the range 82 ÷ 92oC and the cooling effect is 1 kW. in the considered range for the mentioned temperature. the evaporation temperature and the reference state temperature are kept constant. 104 Mircea cel Batran Street. Compared to vapor compression refrigeration systems.preda@yahoo. Faculty of Naval Electro-Mechanics. The most commonly used method of cooling is based on vapor compression cycles. the aspect related to energy consumption is of great importance for specialists. After a short description of the analyzed system. the evaporation temperature is te = 3oC.75. indicated by the Coefficient of Performance of the cycle. It is stated that ejector refrigeration is a thermally driven system which requires low grade thermal energy for its working. but it is more attractive from energy saving point of view. the generating temperature increase leads to the increase of the work input to the pump. Romania Paper ID: A-36 AN ANALYSIS OF THE PERFORMANCE OF AN EJECTOR REFRIGERATION CYCLE WORKING WITH R134A Feiza Memet & Andrei Preda Constanta Maritime University. 90. In this respect.178. which are 0. 65 . Constanta. are given equations for thermal loads and Coefficient of Performance calculation. Are obtained results in the following conditions: the condensation temperature is tc = 33oC. are known the isentropic efficiencies of the ejector. and the isentropic efficiency of the pump. which is 0. Mamaia. Many industries rely on refrigeration technologies. the reference state temperature is to = 23oC. efforts oriented towards efficient industrial refrigeration systems revealed the necessity of a proper design. the present study deals with a theoretically analysis of an Ejector Refrigeration System. andrei. generating temperature. Abstract: Key words: ejector refrigeration system.com In the context of recent developments in the field of energy. on First Law basis. performance. In the same time. ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. The real non isothermal process of drying clay tiles was obtained by combining five isothermal drying processes. non isothermal drying. Duration of the first segment was the same as the duration of the characteristic drying period t0C obtained from the experiment 1 (figure Deff – t). It must be said that the clay tile dried in experiment 5 had been dried without cracking. In order to do that four isothermal experiments were done. Temperature and humidity were maintained at 400C / 80%0C. variable diffusivity. 700C / 80%. respectively in each experiment. Duration of the second segment was the same as the duration of the characteristic drying period tCD obtained from the experiment 2 (figure Deff – t) from point C till point D. non isothermal drying process was approximated by 5 segments. That is the reason why the temperature and humidity are 800C / 40% respectively in the fifth drying segment. All experimentally collected data were analyzed and the exact transition points between possible drying mechanisms were detected. The next goal was to develop a model which could in advance characterize the real non isothermal process of drying clay tiles.vasic@institutims. Romania Paper ID: A-37 NON ISOTERMAL DRYING PROCESS OPTIMISATION . 66 . when point F is passed shrinkage of the product is over and the product will not crack. Previously mentioned drying segments were linked in experiment 5. milos. diffusion. Duration of the third segment was the same as the duration of the characteristic drying period tDF obtained from the experiment 3 (figure Deff – t) from point D till point F. Abstract: Key words: drying process. Duration of the fourth segment was the same as the duration of the characteristic drying period tFH obtained from the experiment 4 (figure Deff – t) from point F till point H. 700C / 60%. In the first four segments temperature and humidity were maintained as in conducted isothermal experiments and in the fifth segment temperature and humidity were kept at 800C / 40% respectively. convective drying. Mamaia. 600C / 80%. Characteristic drying period (time) for each isothermal drying mechanism was also detected. Theoretically speaking. Bulevar vojvode Mišića 43 1100 Belgrade.rs In our previous studies we have developed a model for determination of the variable effective diffusivity and identification of the exact transition points between possible drying mechanisms.DRYING OF CLAY TILES Miloš Vasić & Zagorka Radojević “Institute for testing of materials”. In each of these segments approximately isothermal drying condition were maintained. clay tiles. The real. Serbia Corresponding author: Miloš Vasić. form starting point till point C. because water based cooling agents react with magnesium. grigorascosmin_phd@yahoo. feeds of 500. 350.0007. using a face mill with a diameter of 50 [mm] and 0. Bacau. respective 0. magnesium alloy. surface roughness. Romania Corresponding author: Grigoras Cosmin Constantin.25. with levels ranging from 0. It was also concluded that the optimization of the cutting parameter is a technique that improves the surface quality in terms of surface roughness. and 500 [m/min]. depth of cut of 0. after this optimization a total number of 17 samples were obtained for analysis. Such alloys can be used as temporary bone implants.0026. The cutting parameters were modified as follows: speeds of 200. optimization.8 [mm] radius inserts.15. Abstract: Key words: milling. for a speed of 500 [m/min]. and 0.081 [µm]. using a speed of 500 [m/min] combined with a feed of 1500 [mm/min] and a depth of cut of 0.269 [µm]. with a desirability factor of 0. The Taguci optimization method was used and made by considering the maximization of the speeds.15 [mm] and the same feed. cutting parameters. feeds and depth of cut and the minimization of the surface roughness. 67 . Faculty of Engeneering. 0. The total number of samples was reduced by a pre-optimization.com The purpose of this study is to analyse how the milling cutting parameters influence the surface roughness and hance the surface quality of biomedical implants made from biodegradable magnesium alloys. The obtained results showed that only the speed and feed have a significant impact in obtaining the optimal surface roughness. From the performed analysis it was concluded that the use of higher speeds combined with average feeds and maximum depth of cut have an important role in lowering the Ra values for the surface roughness. with a p value of 0.980. The cutting process was performed in dry conditions.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Calea Marasesti 157. The surface roughness of AZ61A magnesium-aluminium alloy was analysed by changing different cutting parameters for milling operations. using DesignExpert software with the Box-Behnken model. It was recorded that dry cutting magnesium-aluminium alloy AZ61A with the used parameters did not lead to chip ignition. and 1500 [mm/min] and depth of cut of 0.25 [mm]. to 0. 600115. The evaluation of the surface roughness was made by measuring the roughness absolute value (Ra). 1000.35 [mm]. Mamaia. An ANOVA analysis for response surfaces was performed using the DesingExpert software in order to reveal which of cutting parameters were relevant for the roughness change. Romania Paper ID: A-38 THE INFLUENCE OF MILLING PARAMETERS ON THE SURFACE ROUGHNESS IN THE CASE OF MAGNESIUM ALLOY AZ61A Cosmin Constantin Grigoraş & Gheorghe Brabie ”Vasile Alecsandri” University of Bacau. by improving the corrosion time and assuring that the implant offers enough support as a result of stress shielding.37 [HV]. together with the manufacturing time. feed and depth of cut maximization. The total number of combinations is reduced by a pre-optimization. using the DesignExpert software based on the Box-Behnken model. 600115. feeds of 500. feeds. 350. speeds and depth of cut values. hardness. stress shielding. feed of 1000 [mm/min] and the same value for the depth of cut. magnesium-aluminum alloy. by means of the speed. grigorascosmin_phd@yahoo. as follows: speeds of 200.59 [HV]. The optimization was made using the Taguci method and considering the maximization of the speeds. The surface roughness of the alloy was analysed as a function of different cutting parameters for milling operations. 68 . and 1500 [mm/min] and depth of cut of 0. Mamaia. to 121. Romania Corresponding author: Grigoras Cosmin Constantin. depth of cut and surface roughness and it indicates the use of higher speeds combined with maximum feeds and maximum depth of cut.com This study was conducted in order to determine the material hardness value due to modification of the milling cutting parameters. The obtained results showed that the feed has a significant contribution in the surface harness modification.25 [mm]. cutting parameters. and it was recorded that dry cutting magnesium-aluminium alloy AZ61A with the used parameters did not lead to chip ignition. Calea Marasesti 157. for a speed 200 [m/min] combined with a feed of 500 [mm/min] and a depth of cut of 0. In other words this research has as main objective to notice how these variations influence the AZ61A magnesium-aluminium alloy surface hardness in order to obtain a suitable alloy that can be used as temporary bone implant. 1000. and 500 [m/min].25.8 [mm] radius inserts. the cutting parameters were modified. and 0. Bacau. Abstract: Key words: milling. The cutting process was performed in dry conditions. Faculty of Engeneering. using a face mill with a diameter of 50 [mm] and 0. for a speed of 300 [m/min]. The surface hardness was determined based on the Vickers scale (HV).15.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. optimization. values ranging from 110. A total number of 17 samples were machined using parameters obtained by combining the feeds.35 [mm]. Romania Paper ID: A-39 THE INFLUENCE OF MILLING PARAMETERS ON THE MATERIAL HARDNESS IN THE CASE OF MAGNESIUM ALLOY AZ61A Cosmin Constantin Grigoraş & Gheorghe Brabie ”Vasile Alecsandri” University of Bacau. The study reveals that in the case of AZ61A magnesium-aluminium alloy the material hardness can be improved. 0. implemented into computer environment. 44-100 Gliwice. 69 . Romania Paper ID: A-40 TWO-STAGE ORDERS SEQUENCING SYSTEM FOR MIXED-MODEL ASSEMBLY Marcin Zemczak1. Department of Production Engineering.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. in the given time period only satisfactory solutions are sought.pl In the paper. Most of the researchers that implemented inaccurate methods (e. evolutionary algorithsm) to solving sequencing problmes dropped the research after testing phase. set in a line. presented in this paper as a sequencing system is being developed. First of them is connected with the determination of a place in the storage buffer to which certain production orders should be sent. as the optimal solution method has not yet been found. Such production type is usually determined as a mixed-model production.g. are assembled on the shared resources. Bożena Skołud 2 & Damian Krenczyk 2 1 University of Bielsko-Biala. mzemczak@ath. Poland Corresponding author: Marcin Zemczak. The sequencing system consists of a set of determined rules. Abstract: Key words: production planning. The producers are nowadays obliged to provide each client the possibility to determine a huge amount of the features of the product they are willing to buy. CSP problem. In the second stage of functioning. Faculty of Mechanical Engineering and Informatics. Therefore a new approach to solving the problem.bielsko. Institute of Engineering Processes Automation and Integrated Manufacturing Systems. and arose from the necessity of manufacturing customized products on the basis of very specific orders from single clients. Poland 2 Silesian University of Technology. each in a certain number of versions. Faculty of Mechanical Engineering. the authors focus on the NP-hard problem of orders sequencing. Mamaia. as the competition in the automotive market is large. as they were not able to obtain reproducible results. 43-309 Bielsko-Biala. and met problems while determining the quality of the received solutions. Due to the previously mentioned nature of the problem (NP-hard). sequencing. on which few different models of products. precise sets of sequences are determined and evaluated for certain parts of the storage buffer under certain criteria. formulated similarily to Car Sequencing Problem (CSP). Willowa 2. Konarskiego 18A. mixed-model production. The system itself works in two stages. The object of the research is the assembly line in an automotive industry company. For this research 6 input parameters will be utilized: water flow.: lignin. shaping. Abstract: Key words: water jet. plastic materials. The experimental planning use Taguchi methodology in order to manufacture parts from “liquid wood”.Liquid wood (based on lignin. Romania Paper ID: A-41 WATER JET TECHNOLOGIES OF “LIQUID WOOD” MANUFACTURING Daniel Marguta & Andra Giza “Gheorghe Asachi” Technical University of Iasi.e. 700050. Department of Machine Manufacturing Technology. Tecnaro Company meets this need by developing a biodegradable material and known as “liquid wood. pressure. starch. ARBOBLEND plastic composite with wood (its content is based on biopolymers degree. e. specifically. Mamaia. “Liquid wood” granules can be processed like any other plastic materials by different procedures.com Human society has used and continues to widely use plastic materials because of their extensive versatility. organic additives and natural fibers). films or profiles.petroleum. the sources from which plastics are derived (petroleum and its components) and their biodegradability.biopolymeric composite (polymers and natural fibres-based compound provided with natural cork aspect). wax and cellulose). natural resins.based and sustainable feed stocks. Blvd. blow molding. calendering. danielmarguta@gmail. “liquid wood”. Mangeron. deep drawing or pressing into moulded parts. 70 . 59A. angle inclination of jet.g. academic and industrial. and reaming metallic and nonmetallic materials. there is an immediate need to develop non. No. extrusion. velocity movement of injection head and abrasive granulation. the widespread use of plastics has become a significant concern due the their negative impact on the environment. i. Taguchi methodology. However. manufacturing. Water jet technology is a method able to cut a wide variety of materials and shapes using a very high-pressure jet of water. This method. is used in various industries for cutting. part thickness. towards biobased and biodegradable plastics.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Romania Corresponding author: Daniel Marguta. semi-finished products. This new material is available in three different versions: ARBOFORM . ARBOFILL. This technology use two basic methods: with water jet or a mixture of water and an abrasive substance. injection moulding. Thus. sheets. Each factor had two variation levels. Iasi. The goal of this paper is to present some aspects of research concerning the water jet technologies of plastic materials referring at “liquid wood” manufacturing. low cost and manufacturing process. abrasive jet. and this has predominantly shifted the attention of many researchers. water jet and abrasive jet. the constructional one and the production preparation one is getting shorter.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. and the earlier cases that . In the process of production preparation and of manufacturing are used flexible manufacturing systems. Time for the implementation of the design process. cost of production and quality of manufactured parts. Fig. Institute of Engineering Processes Automation and Integrated Manufacturing Systems. Konarskiego 18A. R4 model of the CBR cycle Software adding the process of tasks solving. which in literature is called the loop of four R (Retrieval. Mamaia. The main advantage of this method is the fact that experience acquisition may be parallel to the process of current solution searching (when the knowledge of this solution is the most complete). Poland Corresponding author: Piotr Ociepka.ociepka@polsl. This enforces of engineers who carry out these processes using efficient tools that are able to significantly speed up the processes while maintaining the profitability. and consists in searching the analogy (similarity) between the currently considered task. This stage requires from the technologist or machine tool operator the extensive knowledge and experience. In the present article is described the method based on engineering knowledge and experience for adding the process of cutting tools selection and process parameters determination.are stored in the computer memory. The dynamic development of computer science and computer technology allows conducting researches on effective methods of computing. piotr. Faculty of Mechanical Engineering. The process of solving problems using the CBR method could be presented as the series of action. quality and durability of products. 71 . This article presents an algorithm and the formalized description of the developed method. One of the essential elements of the technology process preparation is the selection of appropriate cutting tools and process parameters. Key words: CBR method. should be equipped with effective mechanisms for acquisition and processing of knowledge and experience. which significantly accelerate them. forcing producers to significantly accelerate the development of new products and placing them in the market.adequately described . 44-100 Gliwice. basing on the CBR method. It is also presented the example of the cutting tools selection and process parameters determination in the case of a turning process. This has a significant impact on performance. Revision. basing on engineering knowledge and experience to support these processes.pl Abstract: Market trends associated with rapidly changing demand. The method proposed by the authors is based on the CBR (Cease Based Reasoning) approach. In the case of design and constructional processes are applied advanced and specialized tools of the CAD/CAE class. Retainment). which in combination with CNC machine tools and computer programs of the CAM class allows to quickly and effectively adapt the system to the new production schedule. turning process. CAM systems. Romania Paper ID: A-42 APPLICATION OF CBR METHOD FOR ADDING THE PROCESS OF CUTTING TOOLS AND PARAMETERS SELECTION Piotr Ociepka & Krzysztof Herbuś Silesian University of Technology. Reuse. with the mechanisms for rapid databases searching and with efficient algorithms for similarity determining. ro Abrasive water jet cutting (AWJ) has been extensively used during the last years to process a large variety of materials since it offers important advantages as a good quality of the processed surface. small induced mechanical stresses etc.9 0.3 0. width at the jet outlet (Lo). Bacau.5 0% 20% 40% 60% 80% 100% 0. 80% and 100%. The main disadvantage is the high cost of processing (cost of equipment and consumables). deviation from perpendicularity (u) and roughness (Ra). The reusing rate of the garnet abrasive material was: 0%.1 Steel 2P OL 37 0 0% Recycled abrasive 20% 40% 60% Recycled abrasive Key words: abrasive water jet cutting reused abrasive. lower transport costs and fewer related problems (environmental benefits). 72 80% 100% . 60%. Mamaia. 40%. 600115. Romania Paper ID: A-43 THE SURFACE QUALITY OF AWJ CUT PARTS AS A FUNCTION OF ABRASIVE MATERIAL REUSING RATE Carol Schnakovszky.5 1. which in turn results in a lower cost of processing per unit length (economic benefits) as well as lower power consumption. This means a decreased consumption of new abrasive material. surface quality. scarol@ub. Maria Crina Radu & Nicolae Catalin Tampu “Vasile Alecsandri” University of Bacau. the effects of reusing the abrasive material on the quality of processed surface are investigated in this paper. The quality of processed surface was quantified by the following parameters: width at the jet inlet (Li). without heat affected zones. Two steel materials were used: OL 37 (S 235) with large applicability in machine building industry and 2P armor steel used in the arms industry.1 0. In view of this. the processing productivity being slightly affected.2 0. Romania Corresponding author: Carol Schnakovszky. inclination angle (α). Faculty of Engineering.5 0. 20%. As result of the study it was found that reusing of abrasive material leads to a good quality of the processed surface.3 2P steel OL 37 1. low environmental impact (no emission of dust or other compounds that endanger the health of the user). Eugen Herghelegiu. Deviation from perpendicularity (u) [mm] Width of the processed surface at the jet outlet (Lo) [mm] Abstract: 1.4 0.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Calea Marasesti 154.7 0. Keywords: drilling. stainless steel. marius_iacob87@yahoo. AurelianVlase & Vlad Darie Politehnica University of Bucharest. RO-060032. polytropic exponents. 73 . stainless steel. Our further studies will aim these problems also for other classes of steels. The experimental data and their subsequent processing represent the original contribution of the authors to the estimation of polytropic exponents and to the assessment in terms of structure of the calculus relation of the cutting tool wear.Rp5 high-speed spiral drill.com Abstract: This article studies the cutting tool wear at drilling of the stainless steel X22CrMoV12-1. The researches in the cutting domain have as purpose the cutting process economical optimization. The article also contains graphs for the variation of the cutting force with parameters of the cutting technology. tool wear. The tool speed was also included in the calculation of the relation. Ovidiu Blăjină & Vlad Darie Politehnica University of Bucharest. in the case of a couple: stainless steel X22CrMoV12-1 . the cutting speeds are exactly determinated. cutting speed. The experimental data and their subsequent processing represent the original contributions of the authors to the estimation of polytropic exponents and to the assessment in terms of structure of the calculus relation of the cutting force. The obtained relationship of the cutting tool wear on the tool putting surface at drilling of the steel X22CrMoV12-1 permits the determination of the wear on the putting surface. 313 Splaiul Independenţei. Production Engineering Department. The results can be taken into consideration in the educational studies and in the theoretical technical research. Putting the condition of wear limitation. depending on the work parameters and the cutting conditions. The graphs are drawn based on the analytic relationship of the cutting force. Bucharest. they can be certainly implemented in the manufacturing activity. AurelianVlase. The structure of the cutting force relation was modified with respect to the relation available in the technical literature for common steels.com This article represents a study of the cutting force at drilling of the stainless steel X22CrMoV12-1. The paper also contains graphs for the variation of the tool wear with parameters of the cutting technology. Romania Corresponding author: Iacob Marius. RO-060032. Paper ID: A-45 RESEARCH REGARDING THE RELATIONSHIP OF THE AXIAL CUTTING FORCE AT DRILLING OF THE STAINLESS STEEL X22CrMoV12-1 Marius Iacob. obtained in this paper. Mamaia. from the obtained relation. Ovidiu Blăjină. using the mathematical software Maple. Production Engineering Department. They can be implemented in the manufacturing activity. Bucharest. Also. cutting force. 313 Splaiul Independenţei. Romania Corresponding author: Iacob Marius. Abstract: Keywords: drilling. The results presented in this study can be taken into consideration in the educational studies and in the theoretical technical research. Romania Paper ID: A-44 ANALYSIS OF THE RELATIONSHIP OF THE CUTTING TOOL WEAR AT DRILLING OF THE STAINLESS STEEL X22CrMoV12-1 Marius Iacob. polytropic exponents.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. marius_iacob87@yahoo. Romania Corresponding author: Minodora Maria Pasare.The structure of the NiP alloy and the composite material Ni-P / SiC. The development of thesedepositswasaimed at determining the influence of the variation of phosphorousacid in the electrolyte. phosphorousacid. itisnotedthat the layerthicknesses are higher for the depositionobtainedfromelectrolytewithsmallcontaining of phosphorousacid. deposition. and itisnotedthat the grains of Ni-P alloyislowerthanthatincorporatedSiCparticlesthat are more evident. 30 Eroilor Street. 74 . Romania Paper ID: A-46 INFLUENCE OF WORKING PARAMETERS ON THE COMPOSITE ELECTRODEPOSITION Minodora Maria Pasare “Constantin Brancusi” University of Targu-Jiu.The amount of phosphorusincorporatedinto the layer increaseswithincreasing the content of phosphorousacid in the electrolyte. 210135. in this paper we studied about electrolyte composites obtained.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Followingheattreatment. alloy. on the other hand. When the content of phosphorousacid in the electrolyteislow and wherealloys are microcrystallized. consisting of a solid nickel solution supersaturated in phosphorus. the presence of particulates changes a little the phosphorus content. depends on the amount of phosphoruscontained in the layer and varies from the crystalline state (the low content of phosphorus) to the amorphous state (the high content of phosphorus). matrix. Mamaia. After the measurements. The matrix is made up of particles of Ni-P on which have been deposited Si-C hard particles. itwasfoundthat the microcrystalline structure of the deposits. minodora_pasare@yahoo. At the increase of phosphorus content included in the coatingisobservedthat the incorporation of phosphorusishigher for increasing the amount of siliconcarbideparticles. which have a wide application in industry. ismaintained up to 1900C. itwasintended the influence of heattreatment on the depositionhardness. Faculty of Engineering. The content of phosphorusincorporatedinto the coating composition evolves as bothsolid as well as particle-free solutions. Targu-Jiu.This matrix studywasdoneaccording to the amount of phosphorus in the depositedlayer. on the one hand. Among these composite materials. Metallographic investigation and X-ray diffraction on the P20S40 sample structure reveals the existence of nanocrystalline state of the layer. Abstract: Key words: composite material.The co-deposited phosphorus modifies the crystallization mechanism so the supersaturation nickel network by phosphorus allows the inhibition of the growth of nickel crystallites whose size decreases until the complete amorphization of the solid solution. and therefore the change in the content of phosphorusincluded in the layer for the SiCparticulate. especially in recent years. and.com Composite materials are extensively studied. and at highertemperaturesitisproducing the precipitation of the Ni3P compound into the nickel matrix. Given that roughness is influenced by technological factors. running. The idea of this process of repairing a heat engine was born because of the world of competition engines where speeds and operating conditions are greatly accelerated wear resulting in a great wearing of the engine set and also a low time for repairs and life service with the original factory specifications. Mamaia. For this reason. Romania Paper ID: A-47 UNIFORMITY OF THE ROUGHNESS PROFILE THROUGH THE ROTARYSOFTENING OF THE CYLINDERS OF THE ENGINE HEAT TO ELIMINATE RUNNING Daniel Chirita „Gheorghe Asachi” Technical University of Iasi. the advance work of the head of roughness. it is controlled during the running operation. at the commissioning of a new or repaired heat engine. The main parameters to be considered are: the cut material. Mangeron. 700050 Iasi. the size of the rollers of smoothing. rotation of the meaning of roughness. each with two levels of variation.com Abstract: Following an analysis of the roughness resulting from honing it is found that the shape of the roughness in cross-section resembles the saw teeth.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. After the running. The research in this study will present a method of plastic superficial deforming of the roughness tips resulting from the process of honing on the heat engine cylinder surface. The advantage of this method is that the running operation is eliminated. the clearance between piston and cylinder is larger and the outer surface of the piston in the contact area with the cylinder surface is polished. roughness. Blvd. Romania Corresponding author: Daniel Chirita. 75 . in addition to the blunting between the piston and the cylinder it is found that the engine oil containing metal powders should be replaced. Keywords: rotary-polishing. roughness speed. for the blunting of the roughness‟s tips after the honing operation. the cutting stone abrasive grit. chiritad76@yahoo. and its effects during the operation of the engine under the parameters specified by the manufacturer. the experimental research will be based on the Taguchi methodology with six input parameters. plastic deformation. No. 59A. ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. honing-after the operation of grinding. operation running-in is necessary or not to decrease time commissioning the parameters indicated by the manufacturer. This changes the nature of the position. concavities. It will analyse this process at various stages of lubrication in order to discover the technological advantages but also economic. Like any phenomenon of attrition. causing the reduction (in the trees) or increase (the holes) dimensions. Romania Paper ID: A-48 STUDY OF CYLINDRICAL SURFACES TEXTURED IN MOTOR MECHANISM Daniel Chirita „Gheorghe Asachi” Technical University of Iasi. roughness. 700050 Iasi. rotary-percussion.com Roughness cylindrical surfaces resulting from mechanical processing are mocroneregularitati what influence the bearing surface of the contact. Surface textured percussion created by you to secure oil depots for the disposal of dry friction and percussion density on cylindrical surfaces will help to decrease the bearing working surface. The topography of the surface of the cylinder plays a major role in determining the friction. the operating performance of the engine depending on it. surface wear and built the skirt of the piston. Romania Corresponding author: Daniel Chirita. where we discover that the chemical energy of the fuel 100% engine only between 25-40% of it comes in the form of mechanical energy to the wheel. then it tray area be put to work in different speed regimes and lubrication. in the first period functioning is reduced by more than 50% of the height of small bumps. Functional wear is due to clean the contact surfaces. boring. So before applying any measures to reduce the frictions in the engine. wear. such as malleability of the metal cylinder. This plastic deformation will apply experimentally during surgery of honing as follows: between honing of rough and finishing-after finishing. lubrication and piston Assembly sealing. bearings for piston rings and piston sliding side. No. The cylinder surface is finished through the honing operation to generate the different layers of the surface through a geometric structure with deep valleys for oil retention and a geometry of the plateau of relative good thing that serves as contact. the rest are losing through different kinematic systems that make up and contributes to the good conditions of operation in heat engine. Abstract: Keywords: plastic deformation. Blvd. chiritad76@yahoo. the engine will be able to work at higher revs or lower. 76 . This connection appears to the Sub-Assembly or bad functioning that Assembly (even damage). In this paper will be presented to the study of cylindrical surface textured by the plastic deformation of rotary-percussion. 59A. Mangeron. you have to know the sources. namely the four-cylinder engine on gasoline. Mamaia. For this we will use the most used type. stainless steel. The tabular and graphical variations of the cost in relation to the tool life. A more comprehensive nonlinear programming model to minimize the total cost at the drilling of a stainless steel is developed in this paper. Production Engineering Department. either by creating new types of materials for tools. in this paper the total cost of the drilling operation is considered as the sum of eight incremental costs. Romania Paper ID: A-49 MODEL FOR ECONOMIC OPTIMIZATION OF THE TOOL LIFE AND THE CUTTING SPEED AT DRILLING OF THE STEEL X15CrNiSi20-12 Ovidiu Blăjină. Abstract: Key words: tool life. Romania Corresponding author: Ovidiu Blăjină.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. In the specialized literature the cost of the machining process has been analyzed using a number of approaches and varying degrees of simplification to determine the optimum cutting tool life and the cutting tool speed for minimum cost of the machining operation. Mamaia. ovidiu_blajina@yahoo. The purpose of this paper is the optimization of the cutting tool life and the cutting speed at the drilling of the stainless steels in terms of the global indicator of the minimum machining cost. 77 . Splaiul Independentei. 060032. Vlad Darie & Aurelian Vlase Politehnica University of Bucharest-Romania. No. The optimum tool life to provide the minimum cost of the machining operation is derived from the new proposed cost model.com The problems related to the wear of the cutting tools wear and the tools life at the machining of the stainless steels are very important due to the chemical and mechanical characteristics of these steels. cutting speed. are also presented in the paper. The presented results can be taken into consideration in the educational studies and in the theoretical technical research. Bucharest. drilling. The numerical mathematical model developed for the analyzed case study of the stainless steel X15CrNiSi20-12 is resolved using the specialized software WinQSB. The accuracy of the prediction of the tool life and the cutting speed is dependent on the degree of sophistication of the cost model. 313. Sector 6. The optimum cutting tool life and the associated cutting tool speed are obtained by solving this mathematical model. Therefore. machining cost. valid only for the studied steel. Over time the research have studied the causes which produce the cutting tool wear and the methods to improve the cutting tools durability. They can be implemented in the manufacturing activity. either by the choice tools geometric parameters and cutting regime. Str. The use of a more comprehensive cost model allows greater accuracy in the prediction of the cost and getting the optimum tool life and the optimum cutting speed. Mamaia. are presented in the paper. the purpose of this paper is the optimization of the tool life and the cutting speed at the drilling of the stainless steels in terms of the global indicator of the maximum productivity. The restrictive relations of the mathematical model refer: the cutting feed. The research in the last decade regarding the cutting machinability of the stainless steels have highlighted the insufficiency of the data for establishing of the optimum cutting processing conditions and the optimum cutting regime. the advance mechanism of the drilling machine. Vlad Darie & Blăjină Ovidiu University Politehnica of Bucharest-Romania. Also the paper suggests new research directions for the specialists interested in this field. With this object in view. specific for this processing operation. drilling. The processing of these steels is determined by their specific physical-chemical characteristics and by their technological properties. A nonlinear programming model to maximize the productivity at the drilling of a stainless steel is developed in this paper. The numerical and graphical analyzes of the machining productivity depending on the tool life. Romania Paper ID: A-50 TOOL LIFE AND CUTTING SPEED FOR THE MAXIMUM PRODUCTIVITY AT THE DRILLING OF THE STAINLESS STEEL X15CrNiSi20-12 Aurelian Vlase. is also calculated for the case study. 060032.com The stainless steels are used more and more in various key domains of the technique. Str. The optimum tool life to provide the maximum productivity of the machining operation is derived from the proposed model. in order to increase the productivity of the stainless steels machining. cutting speed. productivity. the power consumption of the machining process. valid only for this studied steel. aurelvlase@yahoo. The optimum rotational speed. Production Engineering Department. The results of this study can be used in production activity. the buckling resistance of the spiral drill. Romania Corresponding author: Aurelian Vlase. 313.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. The numerical mathematical model developed for the analyzed case study of the stainless steel X15CrNiSi20-12 is resolved using the specialized software WinQSB. the drilling machine kinematics. The optimum cutting tool life and the associated cutting tool speed are obtained by solving the proposed mathematical model. stainless steel. 78 . Bucharest. The use of this productivity model allows greater accuracy in the prediction of the productivity for the drilling of the stainless steel X15CrNiSi20-12 and getting the optimum tool life and the optimum cutting speed for the maximum productivity. corresponding to the optimum cutting speed. Splaiul Independentei. Abstract: Key words: tool life. The relation of the productivity at the drilling operation is calculated based on the expression of the time technical norm. No. Sector 6. Abstract: Paper ID: A-52 ELECTROMAGNETIC PULSES BONE HEALING BOOSTER Sorin R.ro The present study was triggered by the need to assist posttraumatic bone restauration as well as compensatory bone growth in periodontal condition. Currently. Blvd. Pomazan. Recent studies state that specific electromagnetic stimulation can boost the bone restauration. Daniela Bica3. Faculty of Naval Electro-Mechanics. Romania Corresponding author: Gheorghe Cretu. Department of Machine Manufacturing Technology. Pomazan2. a digital electronic device is proposed for intra oral mounting and bone restauration stimulation in periodontal condition. 104 Mircea cel Batran.com This paper presents particularities of vortex processing using adapted devices on lathes (emphasizing the necessary auxiliary devices). 900527. Faculty of Mechanical Engineering. SMD circuit.M. electromagnetic stimulation. Canada. electromagnetic field control and automation of current monitoring. 900663.. cretu_gh2yahoo. Given the intra-oral environment an enhanced protection against abnormal current growth is implemented. Valentina M. The electrical signal is applied to an inductive mark that will create and impregnate the designed magnetic field in diseased tissue.I Daniela Bica. reaching up to 30% decrease in recovery time. Iasi. to limit the problems caused by powering medical equipments from the main power supply. 79 . On this basis conclusions are drawn regarding the construction of such devices. No. Mangeron. Sintea1. 124 Mamaia Blvd. the device. Constanta. The device also monitors the status of the electromagnetic field. pulse control. 10 Industriala. Are presented some details of installation for power consumption measuring and the results obtained from the processing of specific alloy steel for the screws construction. Constanța.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Constanța. as concept version is under clinical testing. in cycles of six up to twelve months. Abstract: Key words: bone growth. Based on the existing data on the electromagnetic parameters. Romania 3 C. 7 Headlands Crescent Witby. Ontario. Mamaia. Romania 4 DG Engineering. Romania Paper ID: A-51 CONSIDERATIONS CONCERNING THE POWER CONSUMPTION ALLOYED STEELS USING THREADING VORTEX PROCESS Gheorghe Cretu “Gheorghe Asachi” Technical University of Iasi. L1R1Z9. The system is powered by an autonomous power supply (battery). Controlled wave forms and pulse frequency signal at programmable intervals are obtained with optimized number of components and miniaturized using SMD circuits and SMT mounting technology. 700050. Dan Grebenișan4 & Nicolae Bordea 1 1 Constanta Maritime University. 59A. The design requirements in terms of materials and shape for the case and the inductive gauge are also approached. The paper presents the basic principles for the electrical scheme and algorithms for pulse generation. Canada Corresponding author: Valentina M. Romania 2 Ovidius University. email: vpomazan@univ-ovidius. Faculty of Navigation and Naval Transport. Romania Paper ID: A-53 GRASP META-HEURISTICS. 80 . they determine the situation when the best solutions are obtained. A NEW APPROACH TO THE CUTTING AND PACKING TYPE PROBLEMS Gabriela Andrei & Simona Dinu Constanta Maritime University. Greedy construction. combining local search with constructive heuristics. local search. Explorative local searching methods (GRASP – Greedy Randomized Adaptive Search Procedure) represent a new approach to the cutting and packing type problems. generalized in 2008.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. and they refer to the distribution of values obtained in Greedy Construction stage. for an efficient exploration and exploitation of the space of solutions. the solution is displayed as a diagram. in AutoCAD. This technique may include avoidance mechanisms of local optimal values. To view the deployment results.com Metaheuristic methods represent new types of approximate algorithms that try to combine basic heuristic methods in order to obtain a more efficient exploration of the space of solutions. distribution correlated with the results obtained in Local Search stage. The conclusions are drawn from executions performed for a fixed number of different instances. This study presents GRASP meta-heuristics with the theoretical description of the components which define this procedure for the concrete packing problems. The patterns of general application to transport. explorative local searching.e. as well as for avoiding searching in regions that have already been explored. The commands contained in the file are read and executed consecutively in AutoCAD environment. Constanta. meta heuristic. a batch file (script) is used. Romania Corresponding author: Gabriela Andrei. or have not provided quality solutions. Building a possible solution is done using an algorithm of the FFD type (First Fit Decreasing). Abstract: Key words: GRASP. 104 Mircea cel Batran Street. 900663. to solve problems of contemporary reality. These are strategies which guide the search process for this purpose. At the optimizing finish. the GRASP metaheuristics involves a repetitive selection. placing this method among the meta-heuristic techniques and examples regarding the implementation of the aforementioned method. with a number of items in a certain area. to find optimal solutions. andregabriela@yahoo. In the construction stage. Correlating the results obtained with Local Search stage. Mamaia. The conclusions show the influence of each of the two stages in the value of the best solution. and specifically to maritime transport establish ways of optimizing these activities. for the search of a better quality solution. by Alvarez. These techniques cover a wide set of algorithms and they are not typical only for certain problems. i. ModTech International Conference Modern Technologies in Industrial Engineering June 17-20, Mamaia, Romania Paper ID: A-54 SYNTHESIS OF OPTIMAL DIMENSIONAL STRUCTURE OF THE TECHNOLOGICAL PROCESSES OF MACHINING Alexei Toca, Ion Stingaci & Ivan Rushica Technical University of Moldova – Republic of Moldova, Department of Machine Manufacturing Technology, Blvd. Stefan cel Mare, No. 168, 2004, Chisinau, Republic of Moldova Corresponding author Alexei Toca,
[email protected] Abstract: In this paper we consider the question of the creation of optimal processes using many criteria of optimality. In the synthesis of machining technologies must take into account a great many factors (economic, technical, dimensional accuracy etc.) that influence on the output quality parameters of the process and is not only essential but also quite complex in the definition. Among the criteria of optimality can be noted: a minimum number of operations in the technological process; a minimum number technological mounting in the process; a minimum number of operation elements in each operation; a minimum number of locating datum surfaces; a minimum number of links in the technological dimension chains; a minimum value of machining allowances; a minimum values of allowance‟s tolerance etc. Is shown the necessity of ranking optimality criteria, and that the first criteria to be considered are a criteria directly related to the accuracy of machining. Ranking optimality criteria can significantly reduce the number of considered variants, which is very important to ensure the quality and timeliness their technology development. In the synthesis of the technological process must consider the results of the previous operation as a blank for the next operation. In this case, there is a possibility of mutual adaptation of the dimensional structures of the parts and of the technological system. Key words: optimum dimensional structure, criteria of optimality, dimensional analysis, machining accuracy. 81 ModTech International Conference Modern Technologies in Industrial Engineering June 17-20, Mamaia, Romania Paper ID: A-55 A NEW METHOD FOR THE ACCURACY EVALUATION OF A MANUFACTURED PIECE Valeria-Ersilia Oniga „Gheorghe Asachi” Technical University of Iasi, Faculty of Hydrotechnical Engineering, Geodesy and Environmental Engineering, Dimitrie Mangeron Boulevard, no.67, 700050, Iasi, Romania Corresponding author: Valeria-Ersilia Oniga,
[email protected] To evaluate the accuracy of a manufactured piece, it must be measured and compared with a reference model, namely the designed 3D model, based on geometrical elements. In this paper a new method for the precision evaluation of a manufactured piece is proposed, which implies the creation of the piece 3D digital model, based on digital images and its transformation into a 3D mesh surface. The differences between the two models, the designed model and the new created one, are calculated using the Hausdorff distance. The aim of this research is to determine the differences between two 3D models, especially CAD models, with high precision, in a completely automated way. To obtain the results, a small piece has been photographed with a digital camera, that was calibrated using a 3D calibration object, a target consisting in a number of 42 points, 36 placed in the corners of 9 wood cubes with different heights and 6 placed of them at the middle of the distance between the cubes, on a board. This target was previously tested, the tests showing that using this calibration target instead of a 2D calibration grid, the precision of the final 3D model is improved with approximatlly 50%. The 3D model of the manufactured piece was created using two methods. First, based on digital images, a point cloud was automatically generated using the Visual SFM software and after the filtering process, the remaining points were interpolated, obtaining the piece 3D model as a mesh surface. Second, the piece 3D model was created using also the digital images, based on its characteristic points, resulting a CAD model, that was transformed into a mesh surface. Final, the two 3D models were compared with the designed model, using the CloudCompare software, resulting the imperfections of the manufactured piece. The proposed method, highlights the differences between two models using a color palette, offering in the same time a global comparison. Abstract: Key words: Hausdorff distance, 3D model, digital images, point cloud, accuracy, manufactured piece. 82 ModTech International Conference Modern Technologies in Industrial Engineering June 17-20, Mamaia, Romania Paper ID: A-56 RESEARCH CONCERNING OPTIMUM CUTTING PARAMETERS ACCORDING WITH TOOL PATH STRATEGY FOR FINISHING PROCEDURES Andra Elena Pena, Florea Dorel Anania & Miron Zapciu University Politehnica of Bucharest, Department of Machine Tools and Manufacturing Systems, Splaiul Independentei, No. 313, sector 6, 060042, Bucharest, Romania Corresponding author: Andra Elena Pena,
[email protected] Optimum machining parameters are of great concern in manufacturing environments, where economy of machining operation plays a key role in competitiveness in the market. Optimization of cutting parameters in NC milling needs to be studied because of its influence on machining time and cost. Today, any CAM software offers many tool path strategies to milling free form geometries. However, the users must have the know-how to choose the strategies according to geometry complexity, cutting tool geometry and its contact on the machined surface. Choosing the right strategy with the right cutting parameter is a rather difficult task to do on the machine tool. Many researchers studied various cutting parameters mainly based on part material, cutting tool, machine tool etc but this topic still needs to be explored. In this paper we try to take into account the influence of the tool path over the surface quality for finishing operation. The main goal is to establish a direct link between machining parameters and tool path in order to obtain the same surface quality for different trajectories. The first step consist in making a series of experiments for standards toolpath (which can be found in any CAM software) like one-way, zig-zag, spiral from outside to inside, zig-zag at 45 dgr on a milling center. Based on the results, a correction coefficient for the federate was established. In this phase the second step was to validate this coefficient for different feed rate for aluminium machining. Another goal was to compare the machining time between different toolpath strategies with the optimized machining parameters (based on correction coefficient). Still there are some bounderies due to the tehnological limitation of metal cutting. It is well known that reducing the feedrates while keeping the spindle speed up lightens the chipload and leads to a nicer surface finish. But lighten the feedrate too much, the tools will start to rub, and tool life will go way down due to the excess heat generated by the rubbing. This is the first step for developing an easy to use, fast calculus software for the milling cutting parameters. The difference from the other similar software is that we take into account (besides a number of other factors experimentally or analytically determined) the type of cutting tool trajectories. Abstract: Key words: feedrate, milling, optimization, toolpath, roughness, cutting tool. 83 ModTech International Conference Modern Technologies in Industrial Engineering June 17-20, Mamaia, Romania Paper ID: A-57 LASER CLADDING OF AISI 316L/CHROMIUM CARBIDE COMPOSITE COATINGS Damian Janicki Silesian University of Technology, Faculty of Mechanical Engineering, Welding Department, Konarskiego 18A, 44-100 Gliwice, Poland Corresponding author: Damian Janicki,
[email protected] AISI 316L stainless steel grade is used extensively in chemical and petrochemical industries due to its excellent corrosion resistance to both aqueous, gaseous and high temperature environments. A growing application area is the use of this grade of stainless steel as protective coatings on other metals. Often, the utility of these coatings is also determined by their wear behavior. However, AISI 316L exhibits both poor friction wear and erosion resistance. A possible materials solution to providing coatings which combine the attributes of high wear and corrosion resistance is to use the metal matrix composite coatings (MMCCs), composed of AISI 316L matrix and chromium carbides reinforcing phase. The paper describes the application of High Power Diode Direct Laser (HPDDL) with quasirectangular beam spot and uniform beam intensity profile for cladding of AISI 316L + chromium carbide composite coatings (CCs). The laser cladding process was carried out with direct injection of cladding powder into the melt pool. The aim of the work was to investigate the effect of Cr3C2 volume fraction in the cladding powder on the coatings microstructure, hardness and erosion resistance. The structure and morphology of the CCs were investigated by optical metallography, scanning electron microscopy (SEM) with energy dispersive spectroscopy (EDS) and X-ray diffraction spectroscopy (XRD). To determine the erosion behaviour of the CCs tests of erosion wear were conducted at impact angles of 30° and 90°, in accordance with standard ASTM G 76-95. For comparison in the erosion tests, metallic AISI 316L coatings (MCs), deposited at the same processing parameters as the CCs, were also evaluated. In general, the uniform HPDD laser beam intensity profile and the powder shape (powder spot size) matched to the laser beam spot ensure to produce fully dense CCs with excellent metallurgical bonding, flat fusion line, low dilution and homogenous distribution of Cr3C2 particle throughout the matrix alloy. Distribution and dissolution of Cr3C2 particles are strongly dependent on the laser power level and also volume fraction of Cr3C2 particles in the cladding powder. The erosion resistance of the CCs depends directly on both the volume fraction of Cr3C2 particles embedded in alloy matrix and the erodent impact angle. The CCs at all tested impact angles exhibited higher erosion resistance when compared with that of the MCs. Abstract: Key words: high power diode direct laser, laser cladding, metal matrix composite, AISI 316L, chromium carbide, erosive wear. 84 ModTech International Conference Modern Technologies in Industrial Engineering June 17-20, Mamaia, Romania Paper ID: A-58 QUALITATIVE AND QUANTITATIVE COMPARISONS ON RECONDITIONING BY WELDING OF CRANKSHAFTS FROM AUTO INDUSTRY Oana Roxana Vîrlan (Chivu), Corneliu Rontescu, Dumitru-Titi Cicic & Stefan-Constantin Petriceanu Politehnica University of Bucharest, Faculty of Engineering and Management of Technological Systems, Independentei Str., No. 313, 060042, Bucharest, Romania Corresponding author: Oana Roxana Virlan (Chivu),
[email protected] One of the desideratum of modern society is to reduce the car maintenance costs. One of the pieces of the engine block that mostly gives up in the area of the spindles of levels. Because the price of a crankshaft is very high, specialists try to find new solutions to repair them, not replacing them. The paper presents the results obtained after reconditioning by welding of a crankshaft, using two different methods of reconditioning (Weld Toe Temepring Technique and lateral remelting), in case of using two welding processes by melting, SMAW and TIG. There are made qualitative and quantitative comparisons between results obtained under the two methods based on criteria: hardness, thermomechanical affected zone, structure. Abstract: Key words: crankshaft, welding, reconditioning technique, the quality of the deposited layer, structure. Paper ID: A-59 THE EFFECT OF RECONDITIONING TECHNIQUES BY WELDING ON THE QUALITY OF DEPOSITS ON CRANKSHAFTS. CASE STUDY-SMAW Oana Roxana Vîrlan (Chivu), Dumitru-Titi Cicic, Corneliu Rontescu & Stefan-Constantin Petriceanu University Politehnica of Bucharest, Faculty of Engineering and Management of Technological Systems, Independentei Street, No. 313, 060042, Bucharest, Romania Corresponding author: Oana Roxana Virlan (Chivu),
[email protected] Currently there is searching for solutions to repair crankshaft which yielded during operation. The paper deals with the extension of the 2 methods of reconditioning by welding from energetic industry in the domain of reconditioning the crankshafts from auto industry. There are presented the result after the application of these methods of reconditioning Weld Toe Tempering Technique and lateral remelting where there was used SMAW process. There are made qualitative and quantitative comparisons between results obtained under the two methods based on criteria: hardness, thermomechanical affected zone, structure. Abstract: Key words: welding, weld toe technique tempering, lateral remelting, reconditioning, SMAW. 85 ModTech International Conference Modern Technologies in Industrial Engineering June 17-20, Mamaia, Romania Abstracts-Section B Advances in Composite Materials and Technologies: Advanced Metals, Ceramics and Polymers; Bio-Materials; Recycling of Materials 86 ModTech International Conference Modern Technologies in Industrial Engineering June 17-20, Mamaia, Romania Paper ID: B-1 THE CORROSION BEHAVIOR OF NiTiNb ORTHODONTIC WIRES IN TOMATO JUICE Earar Kamel1, Daniel Mareci2, Sorin Iacoban 3, Bogdan Istrate3, Teodor Stan4, Carmen Trinca4, Corneliu Munteanu3 & Adrian Caileanu2 1 University “Dunarea De Jos”, Faculty of Medicine, Domneasca Street, No. 47, Galati, Romania “Gheorghe Asachi” Technical University of Iasi, Faculty of Chemical Engineering and Environmental Protection, 700050, Iasi, Romania 3 “Gheorghe Asachi” Technical University of Iasi, Faculty Of Mechanical Engineering, Materials Science Departament, Blvd. Mangeron, No. 59A, 700050, Iasi, Romania 4 "Ion Ionescu de la Brad" University of Agricultural Sciences and Veterinary Medicine Iasi, Faculty of Horticulture, Iasi, Romania 2 Corresponding author: Corneliu Munteanu,
[email protected] An investigation about corrosion resistance of NiTiNb orthodontic wires in tomato juice at 37oC have been carried out by using electrochemical techniques. For comparison, NiTi orthodontic wires have also been evaluated. Two electrochemical techniques were used: cyclic potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) in tomato juice. The electrochemical corrosion properties of NiTiNb and NiTi orthodontic wires were measured in terms of zero current potential (ZCP) and corrosion current density (icorr). EIS technique was applied to study the nature of the passive film formed on both samples at 10 minutes and 1 hour immersed time in tomato juice. From EIS data, an equivalent circuit (EC) with on time constant was modelled. Abstract: Acknowledgement: This work was supported by a grant from the Romanian National Authority for Scientific Research, CNCS-UEFISCDI, project number PN-II-ID-PCE-2011-3-0218. Key words: NiTiNb, orthodontic wires, tomato juice, cyclic polarization, EIS, SEM. 87 Mamaia. These alloys have been named high entropy alloys due to the atomic scale mixing entropies higher than traditional alloys. Romania Corresponding author: Gheorghe Buluc. The novelty of these alloys consists of chimical composition.5/S/133652. Raluca Maria Florea & Ioan Carcea “Gheorghe Asachi” Technical University of Iasi. Acknowledgements: Keywords: high entropy alloys. there are many opportunities in this field for academic studies and industrial applications. Blvd. No. which were produced at an experimental level since 1995by developing the new concept related to the development of metallic materials. project number PN-II-PT-PCCA-2013-4-1048. and analyzed contrary to the misconceptions based on traditional experiences. Abstract: This work was supported by the strategic grant POSDRU/159/1. Up until now. This work was supported by a grant of the Romanian National Authority for Scientific Research.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. CNCS-UEFISCDI. Iasi. Recent developments in the field of high-entropy alloys have revealed that they have versatile properties like: ductility. toughness. Iulia Florea. gheo_u@yahoo. As the combinations of composition and process for producing HEAs are numerous and each HEA has its own microstructure and properties to be identified and understood. SEM. it has been demonstrated that the explored this alloys are feasible to be synthesized. Department of Materials Science and Engineering. chemical composition. 700050. Moreover. hardness and corrosion resistance. the research work is truly limitless. cofinanced by the European Social Fund within the Sectorial Operational Program Human Resources Development 2007 – 2013. Romania Paper ID: B-2 MECHANICAL PROPERTIES OF FeNiCrWMn AND FeNiCrMnAl – A NEW HIGH ENTROPY ALLOYS Gheorghe Buluc. 88 . In this paper I present the mechanical properties of high entropy alloys FeNiCrWMn and FeNiCrMnAl. 59A. Mangeron. processed. dilatrometry.com The term of high entropy alloys started from the analysis of multi alloys. peviz2002@yahoo. Romania Corresponding author: Rozina Steigmann steigmann@phys-iasi. The original version of the alloy was obtained by casting process in a vacuum arc furnace.. 700050. 313 Splaiul Independenţei. nondestructive testing. România 2 Politehnica University Bucharest. Romania 2 University “Alexandru Ioan Cuza”. D. Petrica Vizureanu4 & Adriana Savin1 1 National Institute of R&D for Technical Physics. Faculty of Materials Science and Engineering. 89 . Iasi. The samples were impacted with low energy in order to study delamination influence.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. 700050. România Corresponding author: Petrică Vizureanu. Mangeron 41.Mangeron Blvd. 700050. cobalt alloys. The electromagnetic behavior of composite was simulated by finitedifference time-domain (FDTD) software. tensile strength. Faculty of Materials Science and Engineering. fluidity. Slovenia 4 Technical University “Gh. 700006. Dragoş Cristian Achiţei 1. Romania Paper ID: B-3 COMPLEMENTARY METHODS FOR NONDESTRUCTIVE TESTING OF COMPOSITE MATERIALS REINFORCED WITH CARBON WOVEN FIBERS Rozina Steigmann1. Petrică Vizureanu1. EDAX. 47 D.2. 11 Carol Blvd. the mechanical properties are superior and the positive results obtained at fluidity studies favoring the formation of compounds.com Abstract: This paper presents the characterization of a new alloy CoCrMoSi6. Key words: biomaterials. Iasi. Kongresni trg 12. Paper ID: B-4 ALLOYS WITH SUPERIOR MECHANICAL PROPERTIES USED IN MANUFACTURING OF IMPLANTS Mirabela Georgiana Minciună1. showing a very good concordance with electromagnetic nondestructive evaluation tests. Mamaia.Mangeron Blvd. Iaşi. in terms of mechanical properties using tensile strength and the study of fluidity. Nicoleta Iftimie1. damages. Roman Sturm3. Romania 3 University of Ljubljana. 1000 Ljubljana. Bucharest.. Radu Ștefănoiu2 & Andrei Victor Sandu1 1 „Gheorghe Asachi” Technical University of Iaşi. ultrasound phased array. that lead to the reduction of alloying grade for α solid solution and the plasticity of the alloys. electromagnetic methods. FDTD. Keywords: composite materials.ro Abstract: This paper presents complementary methods used in nondestructive evaluation (NDE) of composite materials reinforced with carbon woven fibers as two electromagnetic methods using sensor with orthogonal coils and sensor with metamaterials lens as well as ultrasound phased array method and Fiber Bragg gratings embedded instead of a carbon fiber for better health monitoring. Iasi. Fiber Bragg gratings. 67 D.Asachi” Iasi. Experimental results obtained from this study confirms that by increasing content of silicon. 060042. Blvd. 500036. It may enumerate some of the major advantages of the manufacturing of such hybrid composite structures: 1) using of the wood waste as source for reinforcing / filler materials in case of the composite materials is a necessity in the context of the using of the renewable and sustainable resources. Romania Paper ID: B-5 STRAIN MEASUREMENT IN THE SEAT-BACKREST COMPONENT MADE OF GLASS / WOOD FLOUR / EPOXY HYBRID COMPOSITE MATERIAL Camelia Cerbu Transilvania University of Brasov. First of all. 3) additionally reinforcing with wood flour leads to the reducing the number of layers of glass fibers. Thus. Key words: hybrid. panels for interior design. the paper presents the seat-backrest component and the mechanical characteristics of the hybrid composite material. This composite material is reinforced both with glass woven fabric and with fir wood flour. the modeling of the material behavior can be applied to other structures made of such hybrid composite material. Consequently. 90 . such a hybrid composite structure could be used to manufacture: panels for thermal or acoustic insulation in constructions. strain. cerbu@unitbv. Faculty of Mechanical Engineering. Further. Finally. tensometric method. To measure the strains the tensometric method was used with rosette strain gauges that are recommended for structures made of composite materials. The main objective of the paper was the experimental measurement of the strains that occur during the mechanical loading of the seat-backrest component in order to validate the numerical model used to simulate the mechanical behavior of this component made of hybrid composite material. This component was mounted on a metallic structure.ro Abstract: The work presents the using of a hybrid laminated composite material to manufacture the seatbackrest component of a chair. wood flour. the strains experimentally measured are compared with theoretical ones. In addition to the applications in the furniture industry. Brasov. 2) hybrid composite material combines the advantages of the both reinforcing materials used – glass fibers (hight ratio between strength and weight. the strains were measured with respect to the three directions of each rosette strain gauge in certain points of the composite part. composite. Mamaia. It was found that the errors are within the 3-12%.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Romania Corresponding author: Camelia Cerbu. low price). The results experimentally obtained validated the numerical model of the seat-backrest component. it presents theoretical and experimental research methodology of the stress and strain states caused by the mechanical loading. lightweight) and wood chips (these gives a good appearance similar to wood. 29 Eroilor Avenue. Theoretical research refers to the finite element analysis of stresses and strains. these are flexible. 4) lower content of tannins in case of the fir wood is an advantage in case of the outdoor applications because the tannins are water-soluble phenol which can form dark colour complexes. glass. Mangeron. Romeu Chelariu & Radu Comaneci “Gheorghe Asachi” Technical University of Iasi. Romania Paper ID: B-6 EFFECTS OF CASTING CONDITIONS ON PROPERTIES OF CO-CR-MO ALLOYS FOR DENTAL APPLICATIONS Anca Vitalariu. Tensile testing and hardness measurements were performed to evaluate the mechanical properties of the samples molded in different conditions (i. Blvd. melting and mold temperature. To analyze the changes in microstructure. optical and scanning electron microscopy have been undertaken. Their mechanical properties such as higher elastic modulus provide the necessary strength and rigidity without needing for thicker cross-sections. No. dental applications. 700050.com Abstract: Having better biocompatibility as well as higher resistance to tarnish compared to other dental alloys. Clasps manufactured from alloys with higher yield strength show increased resistance to plastic deformation. while elongation is associated with the extent of plastic deformation of the clasp before fracture. experimental castings were conducted under different conditions. The redistribution of the phases and/or elements was depicted by X-ray diffraction. Co-Cr-Mo alloys were intensively developed for cast removable partial dentures (RPDs). ancavitalariu@yahoo. casting conditions.e. keeping their initial shape and satisfactorily retaining of the prosthesis. For RPDs. Co-Cr-Mo alloys are widely used for dental applications. Romania Corresponding author: Anca Vitalariu. 59A. Iasi.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Keywords: Co-Cr-Mo alloys. Department of Materials Science and Engineering. The results of the study highlight the effects of the casting conditions on microstructure and properties of Co-Cr-Mo dental alloys used for RPDs. Mamaia. With a superior strength and good corrosion resistance as well as suitable wear resistance. 91 . thus reducing the weight of the metal frameworks. To test the improvement in mechanical properties of Co-Cr-Mo alloys as effect of the technological parameters. and solidification rate). the retentive clasp arms should be sufficiently flexible. 5h and 5h. Iasi.M. ZnO/ZnCr2O4 and ZnO/ZnAl2O4 showed the best performance degrading ~98% of phenol after 3.5h of UV irradiation. Calcination at 600°C gives rise to solutions of mixed metal oxides with porous properties. M. The structural and nanoarhitectural features of the studied catalysts were described by: XRD. phenol photooxidation. able to promote advanced oxidation reactions. Faculty of Chemistry. The novel catalytic formulations were obtained using the precursors materials type ZnM-LDH (M = Al3+. CNCS-UEFISCDI. There are strong interests to develop new photocatalysts with specific semiconductor properties. Prof. czaharia2003@yahoo. Mureseanu2 & C. Puscasu1. Romania Corresponding author: Carmen Zaharia. The development of photocatalysts based on the mixed oxides derived from layered double hydroxides (LDHs) . G. This work presents ZnO/ZnAl2O4. 107-I Calea Bucuresti.ro.docent D. Craiova. 73. novel catalyst formulations.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. SEM and N 2 adsorption while their photoresponsive properties were studied by the UV-VIS spectroscopy. Acknowledgment: This work was supported by the grant of the Romanian National Authority for Scientific Research.Dr. Carja1. 92 . Results show that when tested in the photocatalytic process of the phenol degradation from aqueous solutions. while ZnO/Zn2TiO4 has degraded almost 80% after 7.might offer novel environmetal-friendly solutions for the cost effective removal of organic pollutants. Key words: LDHs. Romania Paper ID: B-7 MIXED OXIDES DERIVED FROM LAYERED DOUBLE HYDROXIDES AS NOVEL CATALYSTS FOR PHENOL PHOTODEGRADATION C. Mamaia.a family of naturally occurring anionic clays . Cr3+ and Ti4+). czah@ch. respectively. Zaharia1 1 “Gheorghe Asachi” Technical University of Iasi-Romania. mixed oxides. The LDH clays were synthesized by the co-precipitation method at the constant pH. ZnO/Zn2TiO4 and ZnO/ZnCr2O4 as novels photocatalytic formulations for phenol degradation under UV irradiation. No. project number PN-II-ID-PCE-2012-4-0057 (contract number 75/2013).com Abstract: The removal of organic pollutants is nowadays a very challenging aspect of the environmental research. Romania 2 University of Craiova. Faculty of Chemical Engineering and Environmental Protection. These results open new opportunities in the development of new cost effective photoresponsive formulations able to facilitate the photo-degradation of the organic pollution as "green" solution for removal of dangerous pollutants. 700050.tuiasi.Mangeron Blvd. 600115.6 m/sec. Key words: sintered composites. The static tests demonstrated that this new kind of sintered composite material has preferable electrical execution over previous brush material in the same conditions. Bacau. in dry conditions. Romania Corresponding author: Radu Caliman.2% to 97. The sintered composite materials used in this research work are obtained combining different percentages of copper with short carbon fibers with iron and lead in order to investigate the variation of the friction behaviour.carbon composite materials are: high resistance to breakage and high value ratios strength/density. five different composite materials are obtained and tested. 157. at room temperature. on a pin-on-disc machine.6% and the percentage of short carbon fibers from 7. resistance to high temperatures. their adaptability it is given by the huge number of choices of the constituent materials that can be joined to acquire the wanted properties of generally impractical from conservative materials.4%. The friction coefficient was measured using abrasive discs made from steel 4340 having the average hardness of 40 HRC. No. Potential advantages of copper . Sintered composite materials are more effective if refer to specific properties per unit volume compared to conventional isotropic materials. durability.ro Abstract: This paper presents a study of the tribological properties of sintered composite materials made from combination of copper with short carbon fibers. and the element tests demonstrated that the temperature climb is not enormous when the brush with this new composite material is exchanged on with huge current and the surface scraped spot is littler amid sliding. low or high friction coefficient. The sintered composites are complex and versatile materials.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Calea Mărăşeşti. copper.The new method of obtained sintered composites. low density and high resistance to wear. The experimental results revealed that the force applied on the specimen during the tests. Varying the percentage of copper from 92. Friction tests are carried out. Mamaia. is playing a very important role regarding friction coefficient and also the wearing speed. and sliding velocity of 0. enhancing scraped spot safety and voltage drop over normal composite material. Romania Paper ID: B-8 ASPECTS REGARDING THE TRIBOLOGICAL EVALUATION OF SINTERED COMPOSITES OBTAINED FROM MIXTURE OF COPPER WITH CARBON FIBERS Radu Caliman “Vasile Alecsandri” University of Bacau. Faculty of Engineering. rcaliman@ub. The main objective of this research work it was to identify a combination of materials with improved friction behaviour.8% to 2. tribological properties. using high-energy and high speed is adequate for production of tribological parts. Graphite particles are conveyed consistently inside the net. 93 . carbon fibers. Especially when it comes to lightweight structures the demand is steadily growing. mainly in the aircraft and automobile industries where low weight ratios are crucial for reducing fuel consumption and emission rates. Despite those qualities. interlayer. the surface areas have to be functionalized through coating. The present research shows an innovative way of creating hybrid light weight materials with improved proprieties for high end products with application possibilities in a wide range of industry branches. This is realized by a thermo-kinetic spray process. specifically carbon fiber-reinforced plastic (CFRP) bear a great potential due to their low density. Stuttgart D-70569. Detailed material studys. have been carried out to determine the ideal bond coat materials.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. To avoid component failure if exposed to such environments and therefore expand the operational capability of the components. have limited wear. high specific stiffness and high specific strength.uni-stuttgart. In order to be able to characterize the material compound.and polymer matrix composite materials.popa@ifkb. due to the different chemical character.and corrosion resistance and present the risk of oxidation and chemical degradation under severe environmental conditions. CFRP materials lack the ability to withstand high temperatures. Romania Paper ID: B-9 EXTENDING THE APPLICATION POSSIBILITIES OF LIGHTWEIGHT MATERIALS THROUGH THERMAL SPRAYED COATINGS Septimiu Popa & Rainer Gadow Institute for Manufacturing Technologies of Ceramic Components and Composites. the functional layer can not be applied directly on the CFRP substrate and requires therefore a metallic interlayer that has to ensure proper adhesion. University of Stuttgart. Key words: Carbon fiber reinforced plastic (CFRP). For such applications polymer. -kinematics and cooling to prevent thermal degradation and minimize residual stresses.de Abstract: The development of new products and the increasing demands on the material properties result in new manufacturing technology concepts. thermal spray coating. The high process temperatures in combination with the polymeric CFRP-substrate require a detailed knowledge on process parameters. These high energetic deposition processes are able to apply high meltable metallic and ceramic coatings with melting points above 2000 °C on a wide range of substrate materials. adhesion tests and various fatigue tests. Mamaia. 94 . metallurgical and physical studies were performed. coating adhesion. Germany Corresponding author: Septimiu Popa. including surface analysis. In most cases. septimiu. and in terms of structural beams. 30 Eroilor Street. 210135.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. carbon fiber composites have been increasingly used in different ways in reinforcing structural elements. ianasi_c@yahoo. compression or torque) without significant damage of their rigidity. bending strength. 95 . The advantages of using epoxy resin in comparison to common wood-laminating adhesives are their gap-filling qualities and the low clamping pressures that are required to form the bond between carbon fiber plates or sheets and the wood beams. The type of reinforcement used on the beams is the carbon fiber reinforced polymer (CFRP) sheet and plates and also an epoxy resin for bonding all the elements. brick. so in case of excess lift beam. Structural epoxy resins remain the primary choice of adhesive to form the bond to fiber-reinforced plastics and are the generally accepted adhesives in bonded CFRP–wood connections.com In recent years. Faculty of Engineering. The experiments have shown that the method of increasing resistance of wood constructions with composite materials is good for it. reinforcement. It proposes a summary of the fundamental principles of analysis of composite materials and the design and use. Fibers used in building applications can be fiberglass. Romania Corresponding author: Aurora Cătălina Ianăşi. we have time to take strengthening measures and when is about a catastrophic request (earthquake) the construction remain partially functional. Târgu-Jiu. to restore or increase the load carrying capacity (bending. The main conclusion of the tests is that the tensioning forces allow beam taking a maximum load for a while. cutting. displacement. Abstract: Key words: carbon fiber. Study consolidation of composites revealed that they are made by bonding fibrous material impregnated with resin on the surface of various elements. wood beams. Observations of the experimental load–displacement relationships showed that bending strength increased for wood beams reinforced with CFRP composite plates and sheets compared to those without CFRP reinforcement. columns and floors. Specifically. Items that can be strengthened are concrete. steel and stone. Mechanical tests performed on the reinforced wood beams showed that CFRP materials may produce flexural displacement and lifting increases of the beams. The solution is easy to implement and has low costs. Mamaia. aramid or carbon. This paper describes an experimental study which was designed to evaluate the effect of composite material on the stiffness of the wood beams. wood. stiffness. something that is particularly useful when we consider a real construction. Romania Paper ID: B-10 THE ROLE OF CFRP REINFORCEMENT IN STIFFNESS STUDY OF THE WOOD BEAMS Aurora Cătălina Ianăşi “Constantin Brâncuşi” University of Târgu-Jiu. the use of composite materials as a reinforcement for wood beams under bending loads requires paying attention to several aspects of the problem such as the number of the composite layers applied on the wood beams. walls. Composites are progressively utilized as a part of elite aircraft and shuttle structures. principally focused around their relatively high particular quality and firmness which get from their generally low thickness. The obtained model and its accuracy to describe the fracture behaviour of a composite material is presented in the final part of this paper. The evaluation of the simulation data indicates the properties of composites in order to fulfil the requirements of their users. Abstract: Key words: modelling. Mamaia. geometry features and relative loading direction. The main objective of this research work it was to generate a numerical model which describes the fracture behaviour of a composite material. the composition of the material and the structural homogeneity. and a numerical model based on integration of interactions (Mori – Tanaka method). No. 600115. Romania Corresponding author: Radu Caliman. includes a factor of stress intensity which is important for establish the fracture direction. The required parameters that describe the composites fracture demand inputs as: load intensity. Romania Paper ID: B-11 MODELLING OF FRACTURE PHENOMENON IN CASE OF COMPOSITE MATERIALS REINFORCED WITH SHORT CARBON FIBERS Radu Caliman “Vasile Alecsandri” University of Bacau. The model used in simulations is considering a composite sample with rectangular shape and 6 mm thickness.ro This paper presents a study regarding the modelling process of fracture initiation and propagation in case of polymeric composite materials reinforced with short carbon fibres. there are multiple concerns regarding strength and fracture behaviour of composites due to their utilisation in complex structures such as those used in the field of aviation. The research work presented in this paper describes the composite materials in terms of formation and propagation of cracks using an algorithm that imposes disproportional loads to composite samples. In order to obtain reliable results. composite. The presented study is using a Functionally Graded Material with local homogeneity in fracture area. The main way to understand the phenomenon of fracture in case of composite materials. crack propagation.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. σct represents the critical stress able to lead to fracture propagation. and also to anticipate and avoid material fatigue and failure is proved to be the finite element analysis. 96 . This pattern is relied upon to proceed because of the expanding interest for vitality sparing flying machine and drive frameworks for space applications for which weight decreases are a crucial. rcaliman@ub. fracture. carbon fibers. In recent times. it should be a good correlation between the model which describe the facture propagation. Calea Mărăşeşti. The sample is loaded with predefine stress σct (MPa) above and under the fracture line. 157. Faculty of Engineering. Bacau. The parameters that describes the fracture behaviour. Abstract: Key words: porous metals. thermal. Romania Corresponding author: Cristina Ionici. Metal foams are an innovative and challenging class of materials. aluminum alloy. Faculty of Physics. Tg.com Alloying elements have an important affect upon the mechanical properties of the Sintered Materials. mechanical properties. cfelix1967@yahoo. Ioan Carcea1 & Maricel Agop1 1 "Gheorghe Asachi" Technical University of Iaşi. Due to their unusual physical. Compression tests show that the cupper based material obtains high results in cryogenic environments. Paper ID: B-13 SINTERED DEFORMED MATERIALS THROUGH MECHANICAL TESTING IN CRYOGENIC ENVIRONMENTS Cristina Ionici University "Constantin Brancusi".8% C and 3% Cu. and acoustic properties. Romania Corresponding author: Cătălina Manoliu (Nuțescu Duduman). No. Oana Bălțătescu1 . 700050. due to a poor classification and a inhomogenous metallographycal structure.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Mamaia. conductivity. 3b. No. Porous metallic materials generally known as metal foams have been of increasing interest during recent years due to their unique properties such as high specific strength. Iaşi. 11 Carol I. Nicolae Titulescu Street. mechanical. Absract: 97 . Blvd. Iaşi. 41. In this work we obtained a porous metal material aluminum alloy. Romania 2”Alexandru Ioan Cuza” University of Iasi. casting. Romania Paper ID: B-12 RESEARCH ON OBTAINING POROUS METAL ALUMINUM ALLOY BASED AND MECHANICAL PROPERTIES CHARACTERIZATION Cătălina Manoliu (Nuțescu Duduman)1. Luiza Camelia Budeanu2. they have received more attention by materials researchers in the last few years and are finding several structural and functional applications in different engineering fields.-Jiu. catalinanutescu@yahoo. 700506.com This article presents obtaining aluminum alloy based porous metal by casting using NaCl as space holder.We investigated mechanical properties of the porous metal obtained by infiltrating molten metal. Tests reveal the weak resistance of materials that contain 0. The results showed that the method is efficient and that the porous metal has a higher structural integrity. Department of Materials Science. Mangeron. In the final part of this paper conclusions regarding the optimisation results are presented. Some of these factors are: process parameters (forming speed. Key words: deep drawing. As expected the obtained part differs from the desired one. optimization. The forming tools are designed in order to obtain the desired part and the forming process is simulated using Dynaform software. Faculty of Engineering. No. This paper presents a study regarding optimization of the blank shape and dimensions in order to obtain a final forming product which will not require multiple trimming operations. Romania Corresponding author: Aurelian Albut albut_aurelian@ub. transported and finally reinstated in the production chain. are costly even we quantify time or money. All the process parameters. Additional operation after the forming process is over. blank dimensions. blank shape. 98 . Multiple simulations are required in order to understand and to quantify the influence of each parameter (factorial design) and numerical optimisation is done to obtain the best value for each factor. blank holder force. tool clearance. Romania Paper ID: B-14 OPTIMISATION OF THE BLANK SHAPE AND DIMENSIONS IN ORDER TO REDUCE MATERIAL SCRAP FROM DEEP DRAWING PROCESSES Aurelian Albut “Vasile Alecsandri” University of Bacau. Also a comparison it is done between the material scrap obtained initially and after optimisation. which must be collected. Bacau. The shape of the part obtained with the optimized parameters is proving the capability of the proposed method. With the optimized process parameters a new simulation is made and the final shape of the part is compared with the ideal geometry. The work presented in this paper is using as a starting point the final product requested to be made. friction coefficient). Generally. The gained knowledge is used to generate the objective function required by the numerical optimization method. and blank shape and dimensions are optimised in order to obtain the requested part and to reduce material scrap. and shape and dimensions of the initial blank (blank prior the forming process). mechanical properties of the blank material.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. all of this with additional costs for the end user and with sever harms of the planet environment. tools dimensions. scrap.ro Abstract: The final part of deep drawing process is affected by multiple interdependent factors. The optimisation is having as a second goal maximization of the material utilization. 600115. Mamaia. deep drawing operation generate important quantities of scrap material. 157. For this reason the producer objective is to cut all the supplementary work that will delay him to reach the market. Calea Mărăşeşti. By using the frequency response functions we determine the eigenparameters for each bar. University of Craiova. The single-point excitation method has been widely used in modal tests and it consists in applying a force in a given point and recording the vibratory structure response in all interest points. University of Craiova. bullet-proof vest. Romania. By using the eigenfrequency of the first eigenmode we determine the bars stiffness and we validate the results by using an approximate method (which consists in clamping the bar at one end. Romania. We present the eigenmodes panels in the partial approximation and the final values of the eigenmodes (with the damping factors. 13 AI Cuza. UE Corresponding author: Cosmin Mihai Miriţoiu. The presented bars can be used in practical engineering for: car or bus body parts. 99 . Marius Marinel Stănescu 2. and so on.com The modal identification for mechanical systems can be divided in two major groups groups: the single-point excitation and the multi-point excitation. There will be presented the experimental recordings for each bar. planes body parts. Cristian Oliviu Burada 1. including the excitation point. From these two methods the multi-point excitation has restricted usage in modal identification engineering because it requires expensive apparatus. 200396. 165 Calea Bucuresti. Romania Paper ID: B-15 EXPERIMENTAL DETERMINATIONS OF THE EIGENMODES FOR COMPOSITE BARS MADE WITH CARBON AND KEVLAR-CARBON FIBERS Cosmin Mihai Miriţoiu1. eigenfrequencies and critical damping). In this paper we present the theoretical background of modal identification for the singlepoint excitation method because this experimental method will be used for eigenmodes determination.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Bruel&Kjaer impact hammer used to apply a shock force. Craiova. Dumitru Bolcu 1 & Vîlcu Roşca 1 1 2 Faculty of Mechanics. reinforcements for sandwich beams. carbon-fiber. All the experiments will ba made by using the next apparatus: Brual&Kjaer accelerometer for vibratory response recording. apply a fosrce at the free end and measure the displacement with a comparative device). kevlar-carbon fiber. Although the single-point excitation requires a minimum of equipment. the frequency response function in Cartesian and polar coordinates. Craiova. Abstract: Keywords: vibration. 200620. eigenmodes. Mamaia. SPIDER 8 data acquisition system connected through USB port to a notebook and the sigal conditioner NEXUS. miritoiucosmin@yahoo. it needs a laborious analysis to perform extensive result processing in order to interpret the dynamic behaviour of the structure under test. UE Department of Applied Mathematics. bogdan_istrate1@yahoo. 100 . Cuza 35 Str. Al. No. This system is also biocompatible to the human body as a cofactor for many enzymes. Carmen-Iulia Crimu1. Corneliu Munteanu1. Scratch analysis. biodegradable alloys. Romania 2 “Dunarea de Jos” University of Galati. Mangeron Str. they are perfectly biodegradable in the body organism. Comparative scratch tests were carried out to study the bonding properties between the coatings and the substrates. biocompatible and corrosion resistant modified layer has become a neccesary study in biodegradable materials. Most importantly. Dental Medicine. SEM. Romania Corresponding author: Istrate Bogdan. biocompatibility. it is neccesary to apply a surface film to satisfy multiple clinical requirements such as mechanical strength. Marcelin Benchea1 & Kamel Earar2 1 “Gheorghe Asachi” Technical University of Iasi. and degradation rate. Mamaia. ZrO2 coatings. Sorin Iacob Strugaru1. Galati. Iasi..com The Mg–Ca biodegrdable alloy system has been proposed as a potential new kind of degradable biomaterial with possible application within medical and orthopedic field. D. No material could match perfectly every requirement for a given application. Mg realeases corrosion products and are likely to be physiologically beneficial in tissue regenartion. APS. The aim of the study is to observe the morphology and scratch analysis for some coatings of ZrO2-CaO and ZrO2-Y2O3 with two different thicknesses deposited with an atmospheric plasma spraying facility.. using scanning electron microscopy SEM QUANTA 200 3D. Abstract: Key words: Mg-Ca. Sulzer Metco 9MCE. Therefore.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. surface changing to form a tenacious. 43. Faculty of Mechanical Engineering. I. Some mechanical aspects were highlighted during the scratch test. 700050. Faculty of Medicine. Mg alloys have mechanical properties similar to bone which avoid “stress shielding” effect. Romania Paper ID: B-16 MORPHOLOGICAL AND TRIBOLOGICAL ASPECTS OF SOME ZrO2 COATINGS ON Mg-Ca BIODEGRADABLE ALLOYS Bogdan Istrate1. In order to improve the degradation and the surface properties. No. Iasi. The results will indicate areas of activity in which the use of the two materials can have a major impact with significant environmental consequences. Romania 2 University “Al. or even just to save energy in their processing or recycling. liquid-wood. either available or innovative ways of processing and using them. Is studied the action of the electromagnetic field on arboblend and arbofill form of “liquid wood” biocomposite. Carol I. Dumitru Nedelcu1. so as to be in future used to improve their behavior in certain environments. naturaone@gmail. Maricel Agop2 & Dorin Vaideanu2 1 Technical University “Gheorghe Asachi” of Iasi-Romania. Romania Paper ID: B-17 ON THE INTERRACTION “LIQUID WOOD” – ELECTROMAGNETIC FIELD Elena Puiu Costescu1. society is always in the race to develop new. 59A. Blvd.Cuza” of Iasi-Romania. Romania Corresponding author: Elena Puiu Costescu. No. Mangeron.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20.com Due to the increasing demand for products and materials through some non-toxic. Iasi. environmentally friendly and biodegradable alternative. 700050. performant and biodegradable materials for specific applications. electrical conductivity. Abstract: Key words: electromagnetic. It is important to know and using characteristics of these materials and their behavior in certain environments and conditions.I. Are follows the modification of the physico-chemical properties of the two liquid wood biocomposite under the action of electromagnetic radiation. 700506.) and is determined the class of material to which it belongs from electromagnetic point of view. Department of Machine Manufacturing Technology. Faculty of Physics. 11. Obtained results in the study of arbofil and arboblend behavior in external electromagnetic field aimed at eliminating structural defects that may occur during the injection process thereby improving the quality and durability of products obtained by injection. Characteristic parametres are determined (punching shear voltage. Mamaia. biocomposite. Simona Plavanescu (Mazurchevici)1. 101 . electrical conductivity. polarization degree etc. polarization degree. depending on their frequency and energy. Blvd. mechanical alloying. each element occupying a similar compared with other alloy elements to form a high entropy. Consisting of a variety of elements. The liquid formulations used for tests were 3% hydrofluoric acid with 10% nitric acid. The present study is aimed to investigate the corrosion resistance in a different medium acid and try to put in evidence the mechanical properties. chimical. 5%HCl and then was investigated. 10% sulfuric acid. Iasi. Weight loss of the samples was measured by electronic scale. and electronic performances. Gheorghe Buluc1. 700050. weight loss test. the content of each element is not more than 35% by weight of the alloy. 102 .com High-entropy alloy is a new alloy which is different from traditional alloys. 59A. Weight loss test was carried out by put the samples into the acid solution for corrosion. Forasmuch of the wide composition range and the enormous number of alloy systems in high entropy alloys. thermal. distribution of the composing phases. acid liquid. Abstract: Key words: corrosion resistance. Mamaia. Romania Paper ID: B-18 STUDY ON CORROSION RESISTANCE OF HIGH-ENTROPY ALLOYS IN MEDIUM ACID LIQUID AND MECHANICAL PROPERTIES Iulia Muscalu1. In general. 077145 Pantelimon. iuliamuscalu@yahoo. made up of a group of 5 to 11 major elements. During the investigation it turned out that this alloy has a high hardness and is also corrosion proof and also strength and good thermal stability. Department of Materials Science and Engineering. the mechanical properties of high entropy alloys can vary significantly.The corrosion resistance of an high entropy alloy was made in acid liquid such as 10%HNO3-3%HF. 2Blvd. No. scientists used different tools. The solution was maintained at a constant room temperature. In the experimental area. mechanical properties. respectively with weight loss experiment. Romania 2 National Research & Development Institute for nonferrous and Rare Metals – IMNR 102 Biruinţei Blvd. 10%H2SO4. including traditional casting. Mangeron. sputtering. In terms of hardness. Romania Corresponding author: Iulia Muscalu. 5% hydrochloric acid. Ilfov.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Vasile Soare2 & Ioan Carcea1 1Technical University “Gheorghe Asachi”. We could define high entropy alloys as having approximately equal concentrations. the most critical factors are: hardness/strength of each composing phase in the alloy. The high entropy alloys were started in Tsing Hua University of Taiwan since 1995 by Yeh et al. splat-quenching to obtain the high entropy alloys with different alloying elements and then to investigate the corresponding microstructures and mechanical. Natural materials are added with different volume fraction (10%. Hashim3 1 AL.Baghdad 3 Midland Refinery Company. inclined. ANSYS. So. shows that the plumes and temperature behavior are affected by the air and the distance from heat source. 608W/m2. Romania Paper ID: B-19 NUMERICAL INVESTIGATION OF THE THERMAL BEHAVIOR OF HEATED NATURAL COMPOSITE MATERIALS Qasim Saleh Mahdi1. 750W/m2. natural composite material. and 457W/m2) at (vertical.Baghdad Corresponding author: Qasim Saleh Mahdi. and feathers are mixed separately with polyester resin. for different position. thermal conductivity.Mustansiriya University.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Numerical results showed acceptable agreement with the experimental previous results. qasim602006@yahoo. egg shells. Three types of natural materials such as seed dates. The specimen is a rectangular (30 cm x 20 cmx0.1 software commercial program Numerical results showed the temperature distribution was affected for all types of natural composite materials at volume fraction 30% and heat flux is 1078 W/m2.com In the present work a numerical investigation was carried out for laminar natural convection heat transfer from natural composite material.Baghdad 2 College of Engineering. and 30%). Iraq . Mamaia. Iraq . and horizontal) position. Continuity and Navier-Stocks equations are solved numerically in three dimensions using ANSYS FLUENT package 12. Abstract: Keywords: natural convection.6 cm) plate which was the heated surface facing upwards at different angle positions. Fadhel Abbas2 & Mohammed R. 103 . 20%. Natural composite materials are the product of this process. Iraq . 928W/m2. Natural composite materials are heated with different heat flux (1078W/m2. D. Iaşi. dilatometric analysis. peviz2002@yahoo. Mamaia.. 111. Mangeron Str. stainless steel and titanium based alloys are the most used in medical applications.gurau@ugal. dental materials and cardiovascular devices.ro By means of an original high speed high pressure torsion procedure. biomaterials. coned-disk spring shape modules. were produced from anFe-28Mn-6Si-7Cr (mass %) shape memory alloy. Mangeron Str. Domneasca Str. Key words: Ti alloy. Microstructure of Ti dental screw was investigated by using optical and scanning electron microscopy. The importance of knowing the behavior of Ti-based alloys at high temperatures provides information on the ways that can be improved mechanical properties. 800201. Abstract: 104 . with various shape characteristic ratios. Galati. 700050. România Corresponding author: Petrică Vizureanu.. No. Romania Corresponding author: Gheorghe Gurau. No. Pure titanium and titanium alloys are widely used as implant materials in the medical and dental applications because of their superior biocompatibility.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20.com Abstract: Metallic biomaterials like cobalt based alloys. developed a superelastic-like response. characterized by force plateaus both on their loading and unloading portions. 700050. 41.. gheorghe. The paper present a study of a Ti implant screw used in dental application. subjected heating to 1200ºC by using dilatometric analysis. which preserved their aspect and werereproducible during isothermal cycling. Therefore I study thermal expansion changes for Ti implant screw. Petrică Vizureanu1 & Bogdan Istrate2 1 „Gheorghe Asachi” Technical University from Iaşi. D. no. with hardness gradient along their generators. as orthopedic implants. Faculty of Materials Science and Engineering. Faculty of Materials Engineering and the Environment. corrosion resistance and specific strength compared with other metallic implant materials. SEM. Romania Paper ID: B-20 PHYSICAL AND STRUCTURAL CHARACTERIZATION OF Ti-BASED ALLOY Mădălina Simona Bălţatu1. The modules were subjected to loading-unloading compression tests by means of deformation devices with three configurations. 41. Iaşi. When compressed between two flat surfaces the modules. România 2 „Gheorghe Asachi” Technical University from Iaşi. Faculty of Mechanical Engineering. at different temperatures between room temperature and 473 K. physical and technological. Paper ID: B-21 SUPERELASTIC-LIKE RESPONSE OBTAINED AT Fe-Mn-Si-Cr SHAPE MEMORY ALLOYS PROCESSED BY HIGH-SPEED HIGH PRESSURE TORSION Gheorghe Gurau “Dunarea de Jos” University of Galati. Department of Materials Science and Engineering. antiballistic. it was shown theoretical and practical that a 20 mm armor made of composite cell is enough to stop a 9 mm projectile. for example. No. 59A. mass and length of the projectile ballistic trajectory. Blvd. Raluca Maria Florea. Mamaia. Thus. depending on speed. based on the effects that occur at the impact zone of the bullet with the composite surface. etc. the use of DYNA 2D software type applications for impact and ballistic behavior studies of cellular composites can be helpful in predicting the behavior of these materials for various military applications (infantry. we study the antiballistic behavior and protection properties of the armor. reduce zonal tensions due to the effect of cell walls deformation. oana84rou@yahoo. 105 . Romania Corresponding author: Oana Băţătescu.). Fast Finite Element (FFE). foams. Key words: metallic cellular composite. Thus. We used for this purpose the DYNA 2D software package. marine. Those effects. It was obtained a good correlation between modeling results and the electron microscope analyse of the impact area.com Abstract: The researches presented in this paper refers basically to the impact of a small/medium caliber bullet shot on a light armor built on the base of a AlMg-SiC metallic composite cellular/foam. 700050. The obtained samples show after the impact the occurrence of concentration / deformation pores effect and intercellular cracks development to the interior of the composite. Romania Paper ID: B-22 RESEARCHES ON THE BEHAVIOR OF CELLULAR ANTIBALLISTIC COMPOSITES BASED ON AlMg-SiC ALLOYS Oana Bălţătescu. Mangeron.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Iasi. In conclusion. We performed an antiballistic behavior modeling by means of a finite element analysis. aeronautics. Ioan Rusu & Ioan Carcea “Gheorghe Asachi” Technical University of Iasi. based on a "multi grid" Fast Finite Element (FFE) system. It is worth mentioning that almost all values for impact energy absorbed by the composite armor are in the protection active zone provided by it. it is possible to have an idea of the microstructure that can be expected in real part according to its thermal behave and to the mould type. 44-100 Gliwice. Abstract: Key words: magnesium alloy. Moreover increasing the cooling rate resulted in an increase in the Mg nucleation temperature.pl Magnesium alloys present a promising alternative to aluminium alloys in lightweight applications. Konarskiego 18a street. These phenomena lead to an increased number of nucleuses that affect the size of the grains. scanning electron microscopy and energy dispersive X-ray spectroscopy. dendrite coherency point. 106 . Romania Paper ID: B-23 THERMAL ANALYSIS AND MICROSTRUCTURAL CHARACTERIZATION OF MG-AL-ZN SYSTEM ALLOYS Mariusz Król. Mamaia. time. However. Mg alloys are commonly used for the manufacturing of cast engines and transmission housings. The dendrite coherency point temperature refers to the state of a solidifying alloy at which a coherent dendrite network is established during the formation of grains. This research revealed that utilization of d2T/dt2 versus the time curve methodology allows for analysis of the dendrite coherency point. An increase in the solid fraction at coherency may improve the casting properties of the alloy and reduce casting defects. mariusz. Institute of Engineering Materials and Biomaterials. Faculty of Mechanical Engineering. X-ray diffraction. Knowing the microstructure in the thermal analysis sample. which represents the temperature. Dendrite coherency point (DCP) is defined with a new approach based on second derivative cooling curve. Microstructural evaluations were characterized by optical microscopy. Castability is influenced significantly by the dendrite coherency point (DCP). solidification.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Tomasz Tański & Wojciech Sitek Silesian University of Technology. the solid fraction at DCP expressed in percent strongly dependents on the dendrite morphology during solidification. The results indicate that the grain size increases with the temperature interval between liquidus and dendrite coherency point. the magnesium alloys in comparison with aluminium alloys have worse casting properties. The information from this approach is very crucial for suppressing mould-metal reaction especially during cooling in casting of magnesium allies by investment casting process. undercooling temperature and solidification range.6investigated by thermal-derivative analysis (TDA). second derivative curve. Additions of Zn resulted in an increase in fraction solid in DCP and decrease in nucleation temperature and solidus temperature. Poland Corresponding author: Mariusz Król. Solidification behaviour was assessed via one thermocouple thermal analysis method.krol@polsl. The effects of Zn content and cooling rate on the characteristic parameters of the evaluation of magnesium dendrites in Mg-Al alloys during solidification at different cooling rates (0. thermal analysis. and solid fraction at which an interlocking solid network forms during solidification. Iulia Florea & Ioan Carcea “Gheorghe Asachi” Technical University of Iasi.com Abstract: The term of high entropy alloys started from the analysis of multi alloys. Iasi. hardness and corrosion resistance. it has been demonstrated that the explored this alloys are feasible to be synthesized. Department of Materials Science and Engineering. Mangeron. the research work is truly limitless. and analyzed contrary to the misconceptions based on traditional experiences. Mamaia. In this paper I present the mechanical properties of high entropy alloys FeNiCrWMn and FeNiCrMnAl. Up until now. 59A.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. The novelty of these alloys consists of chimical composition. Romania Paper ID: B-24 MECHANICAL PROPERTIES OF FENICRWMN AND FENICRMNAL-A NEW HIGH ENTROPY ALLOYS Gheorghe Buluc. gheo_u@yahoo. DMA. EDAX. which were produced at an experimental level since 1995by developing the a new concept related to the development of metallic materials. toughness. processed. Keywords: high entropy alloys. Moreover. Recent developments in the field of high-entropy alloys have revealed that they have versatile properties like: ductility. These alloys have been named high entropy alloys due to the atomic scale mixing entropies higher than traditional alloys. 700050. Blvd. there are many opportunities in this field for academic studies and industrial applications. Romania Corresponding author: Gheorghe Buluc. hardness. No. As the combinations of composition and process for producing HEAs are numerous and each HEA has its own microstructure and properties to be identified and understood. 107 . allowing the optimisation of the process. Adina Talmaciu1. ANOVA.23 mg GAE/g spruce bark. tree bark is a rich source of secondary metabolites and contains several compounds of potential biological and commercial interest. green and energy-efficient extraction of these compounds. optimum conditions. Under optimal conditions. for 60 min. In this perspective. the model predicted a maximum yield of Cmax = 83. However. Department of Machine Manufacturing Technology. 71A Blvd. Mangeron. The paper describe how the mechanical effect of ultrasounds can be used succesfuly in an assisted extraction process applied on waste materials with the final goal of bio based products recovery. Romania 2 “Gheorghe Asachi” Technical University of Iasi. Mangeron. when temperature is 54ºC. They are available in large volumes and are practically unrecicling and unreused. The optimum conditions were further applied for validating the model by an empirical approach. Popa1 1 “Gheorghe Asachi” Technical University of Iasi. using the local max function from the MathCAD program. Romania Corresponding author: Irina Volf. 59A Blvd. The application of renewables based on biomass. low energy requirement and low water consumption (no reflux are needed) as well as an important increase of the extraction yields. Romania Paper ID: B-25 THE ULTRASOUNDS MECANICAL EFFECTS USED IN ASSISTED EXTRACTION PROCESS APPLIED ON WOODEN WASTE MATERIALS Irina Volf1. The effect of ethanol concentration. The challenge will be to develop innovative methods for the efficient use of renewable resources such as biomass. Key words: wooden materials.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. D. Bark. In particular. The challenge is the high-yield. Constantin Carausu2 & Valentin I. Mamaia. ultrasound-assisted extraction was shown to allow a significant decrease of extraction time. Faculty of Chemical Engineering and Environmental Protection. The efficiency of the extraction process was appreciated based on factorial ANOVA results and the optimum conditions. The phenomenon which underlies the use of ultrasound in the extraction of active ingredients from plants is cavitation and its consequent thermal and mechanical effects. The paper presents a straight-forward experimental planning method. D. 700050. ultrasound assisted extraction. together other wood wastes are low-value by-products in the forest industry. economizing power consumption.tuiasi. 700050.. temperature and extraction time were evaluated trough a 32·2 experimental planning.ro Abstract: Nowadays there is a growing consensus that the sustainable development will only be realised through a transition towards a biobased economy. Iasi. Ultrasonic assisted extraction (UAE) has been applied to obtain valuable compounds such as polyphenols from a variety of vegetal materials matrices. which lead to the obtaining the largest amount of polyphenols (expressed as gallic acid equivalents GAE) per gram of spruce wood bark. These results will be further developed with the characterization of extracts from the composition of polyphenols point of view and with the reuse of the extracted wooden material like backfilling material in composite structures. the development of clean production and smart materials may provide the required solution pathways. 108 . the phenolic compounds from spruce wood bark are extracted using UAE. were established. iwolf@ch. Iasi. KNN. and particle morphology of KNN powders.0 and 7.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20.35:2. and reaction temperature on the phase.kr The growth mechanism of (K.4. the phase of KNN particles synthesized by the hydrothermal reaction at 220C for 24 h was changed from K-rich KNN single phase to Na-rich KNN single phase.6:2. In the cases of the starting KOH: NaOH molar ratio of between 7. Changwon. and simultaneously the stable Na-rich KNN particles started to precipitate. The morphology of KNN crystals was found to be dependent on the progress of the dissolution-precipitation process. The two-phase mixed KNN powders were transformed into single-phase KNN by post heat-treatment.0 to 7.0:3.0:2.re. This study firstly suggests the growth mechanism of KNN particles during the hydrothermal reaction and demonstrates that the stoichiometry and particle morphology of KNN particles can be controlled by changing the experimental parameters of the hydrothermal reaction. Korea Institute of Materials Science. Inductively coupled plasma (ICP) analysis revealed that KNN powders with an average K: Na ratio of 1:1 could be synthesized when the KOH: NaOH molar ratio was around 7. chemical composition. K-rich KNN crystals firstly nucleated and grew during the hydrothermal reaction at 220C. Mamaia..65. reaction time. Na) NbO3 (KNN) crystals during a hydrothermal reaction was systematically studied by investigating the effect of KOH:NaOH molar ratio of the starting alkaline solution. Korea Corresponding author: Jae-Ho Jeon. K-rich KNN particles became unstable and started to dissolve. Romania Paper ID: B-26 THE GROWTH MECHANISM AND MORPHOLOGY OF KNN BASED LEAD FREE PIEZOELECTRIC CERAMIC PARTICLES DURING HYDROTHERMAL REACTION Jae-Ho Jeon & Hyun Ae Cha Nano-Functional Materials Lab. Changwondaero 797. hydrothermal synthesis. via two-phase mixtures consisting of both phases. As the starting KOH:NaOH molar ratio was changed from 8. As the reaction time increased. 109 .0.0:3. lead-free. jjh@kims. Abstract: Key words: piezoelectric ceramics. 642-831. physical and chemical wear that may occur. Vibrating electric arc deposition method is not very expensive. Blvd. Iasi. Carmen Nejneru1 & Mihai Axinte2 1 “Gheorghe Asachi” Technical University Iasi. base material/substrate. Iaşi. Romania Corresponding author: Catalin-Andrei Ţugui. namely cavitation.com Improving mechanical properties. there had been a development. In recent years. Thin film deposition can be achieved in several ways. we have chosen to achieve vibrator electric arc deposition on a stainless steel alloy used in low speed electric hydro turbines. For this paper. No. Mangeron. Department of Material Science. In addition to the previously mentioned phenomena another very important phenomenon appears. other equipment or assemblies can be hardened: mud pumps rotors. Mamaia. Blvd. thin layers. SEM.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. România 2 “Gheorghe Asachi” Technical University Iasi. This degradation is caused by hydroabrasive particles. 700050. magnetron and laser. 700050. installation. tzugui. But these very modern technologies have some disadvantages such as high cost of equipment and the cost of producing these layers. we achieved deposition of tungsten and titanium by electric vibrating arc method on Cr-Ni austenitic stainless steel used to manufacture turbine blades. 41 A. Petrică Vizureanu1. Department Technologies and Equipments for Materials. After testing were obtained very good results for corrosive wear and hardness. desalination pump blades and some parts of diesel engines (piston rings). physical and chemical properties of metallic materials can be achieved with the help of heat treatment and thermochemical. 110 . 51. such as sand. Romania Paper ID: B-27 DEPOSITION OF THIN LAYERS WITH W ELECTRODE THROUGH THE METHOD OF ELECTRO-SPARK DEPOSITION ON AUSTENITIC STAINLESS STEEL Cătălin-Andrei Țugui1. In this paper. By this method. Abstract: Keywords: deposition method. No. Mangeron. which ensures purity and high adhesion through a wide variety of processes for the production of coatings. by the hydroabrasive wear and the corrosion phenomenon. This stainless steel is subjected to a very rapid degradation due to the mechanical. Manuela Cristina Perju1. vibrating electric arc. such as: vibrating electric arc.andrei@yahoo. also with deposition of thin layers of special materials. improvement and expansion of modern techniques of deposition by physical and physicochemical methods. but it has some drawbacks such as higher roughness and the time of deposition. oana84rou@yahoo. hydrogen) in a liquid metal under pressure.com In this paper we present different methods for obtaining porous materials. leaving cell edges with hollow cores. No. followed by burning-out of the precursor and pressure infiltration with a molten metal or metal powder slurry which is then sintered. Bubbling gas through molten alloys. Mangeron. 4. made by a modified atomization process. 7. 111 . the only necessary precaution is that relating to surface preparation. cell size. Also we used Scanning electron microscopy (SEM) which is straight forward. allowing it to be released in a controlled way during subsequent solidification. Romania Corresponding author: Oana Băţătescu. 2. 3. scanning electron microscopy (SEM). cell size and cell shape and anisotropy. relative density. By stirring a foaming agent into a molten alloy and controlling the pressure while cooling. Our obtained parts were used for making samples in order to characterize the properties of the materials. The cellular structure of metallic foams requires special precautions that must be taken in characterization and testing. Romania Paper ID: B-28 NEW APPROACH FOR POROUS MATERIALS OBTAINING USING CENTRIFUGAL CASTING Mihai Axinte & Oana Bălţătescu Technical University “Gheorghe Asachi” of Iasi-Romania. Vapor phase deposition or electrodeposition of metal onto a polymer foam precursor which is subsequently burned out. Iaşi. In this paper we have characterized the samples structurally by its cell topology (open cells. Our technology for obtaining porous materials is called centrifugal casting for porous materials. 6. followed by the expansion of the gas at elevated temperature. Sintering of hollow spheres. followed by leaching to leave a metal-foam skeleton. Consolidation of a metal powder with a particulate foaming agent followed by heating into the mushy state when the foaming agent releases hydrogen. Department of Materials Science and Engineering. 700050. Blvd. porous materials.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. expanding the material. or by vapordeposition of metal onto polymer spheres. This technology is currently in the developmental phase. cell shape. aluminum alloys. The technology is briefly described in this paper. 5. The trapping of high-pressure inert gas in pores by powder hot isostatic pressing (HIPing). The known methods in literature since now are the following: 1. closed cells). relative density. or from metal-oxide or hydride spheres followed by reduction or dehydridation. of Iasi. Abstract: Keywords: centrifugal casting. Co-pressing of a metal powder with a leachable powder. Since now we made experiments on the metallic materials. or pressure infiltration of a bed of leachable particles by a liquid metal. 9. Dissolution of gas (typically. 59A. Manufacture of a ceramic mold from a wax or polymer-foam precursor. (mainly used for metallic foams) and highlighting a new technology developed in the Faculty of Materials science and engineering. Mamaia. 8. This technology is included in the method number 8: co-pressing of a metal powder with a leachable powder and is in the same time a newer approach in the porous materials field. Mamaia.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Physical and Geometrical Characterization. Probabilistic Modeling and Analysis 112 . Modeling and Simulation of Mechanical Processes: Mechanical. Romania Abstracts-Section C Characterization. Structural. In the last part of the article presents the Green's function formalism taking into account the disturbance. krzysztof. resulting from the appearance of the defect (substitutional impurities) in the structure of the material. Czajkowskiego Str. The second and third chapter is devoted to the energy density of states and the spectral density of states. Mamaia.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. which the wave function is strongly localized around the defect. energy lvlels. Aim of this study is to determine the energy levels.jamroziak@wso. we can determine the energy levels and band structure of the material. 51-150 Wroclaw. These calculations make sense if the dopant does not cause significant distortion of the molecular structure of the material. Poland Corresponding author: Krzysztof Jamroziak. which is located locally. 109.pl Abstract: About the properties of the material determines its structure at the nano level. the friend and first chapter for the band structure of the example. using the tight-binding method. Romania Paper ID: C-1 ENERGY CALCULATIONS OF DEEP LEVELS DOPING BY USING THE GREEN'S FUNCTION METHOD Krzysztof Jamroziak. The work was performed for the valence orbitals of atoms S and P. material proterties.wroc. Knowing the molecular structure of the material. so any change in the molecular structure of the material changes its properties. Keywords: nanostructure. band structure. so that the numerical calculation performed on only the elements which do not lattice constant differs too much from the solid replaced atom in the molecular structure. In the study. Green's function. spectra of the density of states and the newly created energy levels as a result of the emergence of the dopant atoms point different molecular structure of the material. Mariusz Kosobudzki & Krzysztof Spalinski General Tadeusz Kosciuszko Military Academy of Land Forces. Green's function formalism used refers only to point defects. Using the above methods were carried out numerical calculations band defining the table structure. 113 . the energy density of states. pl The paper presents a method of identification the two-and-half-degree-of-freedom system (Fig. where x is relative displacement mass m1 and m2 as a bassis for generalized coordinates. x . matematical model of multi-degree-of-freedom. Diagram and data of system subjected to testing In the present paper it is assumed that the elastodamping interaction of an element in a complex dynanical system are described by function F x . 51-150 Wroclaw. Czajkowskiego Str. The equations were derived for any differentiable function of elasticity. The stationary process of the system response was assumed in the whole algorithm. Abstract: x1+x2 m1 p1 x1 F1 c0 k1 x2 m2 p2 x2 c2 k2 Fig. miroslaw. Krzysztof Jamroziak 2. Keywords: modeling and analysis. 25. degenerate systems. Mamaia. and F is the interaction force. Materials Science and Engineering. x denotes velocity. stationary random excitation. 50-370 Wroclaw. 109. Poland Corresponding author: Miroslaw Bocian. nonlinear dynamics. Mariusz Kosobudzki1 & Maciej Kulisiewicz 1 1 Department of Mechanics. 114 . in which x is a deformation of the element.) with a separated element containing a degenerate subsystem. Wroclaw University of Technology. Romania Paper ID: C-2 ANALYSIS OF DEGENERATE SYSTEMS WITH STATIONARY RANDOM EXCITATIONS Miroslaw Bocian1.edu. Using methods of energy and power balance the identification of nonlinear dynamic systems with a non-integer number of degrees of freedom for fixed pulse excitations was conducted. Such approach allows to separate equations and to simplify the process of identification. Smoluchowskiego Str. Poland 2 General Tadeusz Kosciuszko Military Academy of Land Forces. The calculation of an appropriate fields of hysteresis loop of signals was conducted using the procedure of determining the average value of the input and output
[email protected] International Conference Modern Technologies in Industrial Engineering June 17-20. com The use of GNSS-RTK technology in agriculture and GIS is useful and it solves the problem of geospatial determination in a short time. in a very short time and with great precision. Depending on the excitation current value variation of reactive power debited by the synchronous compensator may be increasing leading to decrease the load of electric networks and the return of voltages. the quality of which is great. with immediate benefits in terms of determining the spatial position of parcels or primary data in general. GNSS-RTK uses ROMPOS reference stations and measurements are performed through a real-time positioning system. base station network. GIS for agriculture. Baia Mare Corresponding author: Gabriel Badescu. its undeniable advantages over other techniques.com Abstract: A voltage control has as aims maintaining in a narrow band a voltages from nodes of power system and applies to slow voltage variations. Romania Corresponding author: Ciucur Violeta. Abstract: Keywords: GPS. and as primary data for the development of an information system in agriculture and other fields. which are needed by any GIS. Paper ID: C-4 REACTIVE POWER CONTROL IN THE PRESENCE OF SYNCHRONOUS COMPENSATOR Violeta Ciucur & Marian Dordescu Constanta Maritime University. To determine the power synchronous compensator may adopt a technical criterion for bringing voltage in compensation node at values imposed. and in this context the land areas of each owner must be determined. A voltage control results in minimizing the reactive power circulation and reducing power losses in electric networks. with beneficial effects for intervention in agriculture. Rodica Badescu. This is possible through terrestrial measurements using GNSS RTK technology. Constanta. Ovidiu Stefan & Marcel Dirja University of Cluj. This paper presents the use of GNSS RTK technology. violetaciucur_umc@yahoo. Deptament of Electrical Engineering. 115 . and certain aspects of this technology. APIA is a program that covers financial aid that is granted to farmers and landowners.
[email protected] International Conference Modern Technologies in Industrial Engineering June 17-20. Romania Paper ID: C-3 USING GPS GLOBAL POSITIONING SYSTEMS GNSS IN AGRICULTURE AND GIS Gabriel Badescu. GNSS RTK accuracy. Mamaia. The effect of positive adjustment around the nominal voltage values is determined on the absorbed power curve in the over-excited area. the geodetic control network. If we want the maps to be an authentic representation of the real world they should be able to link small pieces (flat) of map content for a real representation. 116 . located in accessible areas and with a description to them. should be based on ROMPOS (Romanian service for position determination using reference stations). which is curved. preferably. Traditionally. Locating spatial characteristics of geodetic control allows the assessment of accuracy according to these characteristics. Romania Paper ID: C-5 COMPENSATION OF GNSS NETWORKS USED IN GEOSCIENCES. Mamaia. Abnormal errors should be detected and eliminated from the pre-processing of the data so that they do not affect the rest of the observations made. ROMPOS. or for making decisions in project management. project management. With the advent of the Global Positioning System (GPS). Baia Mare Corresponding author: Gabriel Badescu. GIS. geodetic control points are established as permanent physical terminals placed in the ground and marked accurately. ROMPOS stations can provide an active network of geodetic control. GNSS accuracy decreases due to extreme values resulting from errors inherent in GNSS observations. allowing GPS (GNSS) users to link their positioning observations of the geodetic network without having to physically occupy a geodetic control point. gabrielbadescu@yahoo. Complex and very precise geodetic networks may require expert analysis in order to achieve full accuracy and precision of geodetic observations used to create them. GIS.com A GNSS determined network of geodetic control is the basis for Geographic Information Systems (GIS) as well as continuous and consistent mapping studies. GEODETIC NETWORKS. Abstract: Keywords: GNSS. GPS (Global Positioning System) devices can be used in many applications that require precise point positioning in Geosciences. using GNSS technology.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Interest and control activity on geodesy has increased dramatically at all levels of government because of the need for accurate maps and data that are used in geographic and terrestrial information systems. but it is also used for project management. IN GEOGRAPHICAL INFORMATION SYSTEMS AND IN PROJECT MANAGEMENT Gabriel Badescu & Rodica Badescu University of Cluj. we must realize that a cadastre map or plan is a flat representation of the curved world. It is also important to determine which method is more effective at distinguishing extreme values of normal observations in the calculation and compensation of networks determined using GNSS technology. Several approaches have been developed in order to detect such abnormalities in geodetic observations. if the surfaces are laid down. In order to understand the function of geodetic control. pl Rail transport is a very important part of the modern economy. Nowadays. Faculty of Mechanical Engineering. Konarskiego 18A. An additional objective is also to retrofit verification of strength coaches. Strength analysis was carried out once again and obtained results were juxtaposed. logistics management systems. Mamaia. CAD model of the considered freight wagon was created and its strength was analysed in agreement with norms described the way of such kind of freight wagons testing. Works which have been undertaken within the project are to improve the operating conditions considered types of wagons by increasing their resistance to corrosion and freezes the freight to the shell of the wagon body in winter. This project is being implemented under the Programme for Applied Research by Institute of Engineering Processes Automation and Integrated Manufacturing Systems of Silesian University of Technology with consortium partners: DB Schenker Company and Germaz Company. 44-100 Gliwice.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. freight wagon. This work was carried out in order to verify the influence of composite panels on the strength of the freight car body and to estimate the possibility of reducing the steel shell thickness of the box in order to reduce weight of the freight wagon. marek. 117 . Abstract: Key words: FEM method. This paper contains a report on the part of the research conducted in the research and development project entitled "Analytical and experimental studies and determination of the structural features of components and assemblies in innovative structure of repaired wagons". modelling. Then. composite materials. The main objective of the project is to develop technologies to modernize freight wagons for the transport of coal and aggregates. Andrzej Wróbel & Andrzej Baier Silesian University of Technology. aimed at introducing new technologies and solutions in railway infrastructure. Poland Corresponding author: Marek Płaczek. Romania Paper ID: C-6 COMPUTER-AIDED STRENGTH ANALYSIS OF THE MODERNIZED FREIGHT WAGON Marek Płaczek. strength analysis. as well as in the traction vehicles. one of the components determining its dynamic development. through the use of innovative materials and technologies to repair this type of wagons during periodic repairs. while maintaining or increasing the permissible load. and thus an easier unloading. as well as to estimate the possibility of reducing their weight. numerous studies are conducted. In the paper results of computer-aided strength analysis based on Finite Element Method are presented. Introduction of modern technology can eliminate or reduce nuisance problems associated with the implementation of any kind of transport or the operation of the technical means used. Institute of Engineering Processes Automation and Integrated Manufacturing Systems. the model of the analyzed freight wagon was modernized by adding composite panels covering the inner surface of the vehicle body.placzek@polsl. In the case of backfilling "forks" the electric signal is lower. as well as the reverse piezoelectric effect . There are many applications of the direct piezoelectric effect . sensors have now produced two forks resonance. Analyzed beam is a part of the vibration level sensor and the results will be used to identify the electrical parameters of the generator. This work presents a mathematical model of a new model of vibration sensor. The value of this voltage is processed by an electronic circuit. Konarskiego 18a Street. 44-100 Gliwice. Mamaia. At the same time is not generated the potential for cladding tiles. The principle of operation of currently used sensors is based on the idea: changes in thickness of the piezoelectric plates cause the vibration of the mechanical element. 118 . with the increase in number of components is increased failure of sensors. Romania Paper ID: C-7 DETERMINATION OF FLEXIBILITY MODULE OF INDUSTRIAL VIBRATION LEVEL SENSOR Andrzej Wróbel. Mentioned disadvantages do not appear in the new proposed sensor design. vibrating level sensor. already in its design phase. marek. smart materials. due to the phenomena occurring in them. If the "forks" are not buried by the material deformation of the full tiles broadcasting is transmitted to receiver piezoelectric plate. analysis. Marek Płaczek & Andrzej Baier Institute of Engineering Processes Automation and Integrated Manufacturing Systems Faculty of Mechanical Engineering.pl Piezoelectricity has found a lot of applications since it were discovered in 1880 by Pierre and Jacques Curie. to determine the graphs of flexibility and confirm two methods: exact and approximate. is a fundamental condition for its proper functioning.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. The Galerkin method of the analysis of considered systems will be presented started from development of the mathematical model. Abstract: Key words: piezoelectric. so-called "fork". for example: need to use several piezoelectric plates. Designing of technical systems containing piezoelectric transducers is a complex process. Such construction have a lot of drawbacks.the production of an electric potential when stress is applied to the piezoelectric material. using these sensors in moist materials is often the case that the material remains between the forks and at the same time causes a measurement error. Silesian University of Technology. modelling. As a result of vibration of receiver plates the cladding is formed on the potential difference proportional to the
[email protected] production of strain when an electric field is applied. Poland Corresponding author: Marek Płaczek. A correct description of the given device in the form of a mathematical model. both cause a jump of the barrel. we have used both FEM and experimental measurements of the two subject parameters. Department of Armament Systems Engineering and Mechatronics. Ioan-Liviu Piticari1. mainly by the use of a high frame rate camera and dedicated software. the variable pressure of hot gases resulted from the burning of the propellant in the cartridge case. by taking into consideration the influence of the remaining undamped vibration over the next bullet. 050141.ro Abstract: The paper presents a study of the influence of the perturbations of the dynamic parameters of a bullet at the muzzle of rifle. The experimental measurements focus on two directions. Department of Machine Manufacturing Technology. the exit or jump angle and the vertical acceleration. firing accuracy. Romania Corresponding author: Alin-Constantin Sava. only for semiautomatic firing. finite elements model. 119 . a vertical velocity and also a vertical acceleration. Faculty of Mechatronics and Integrated Armament Systems. By better understanding the influence made by the jump angle and the vertical acceleration of the bullet at the muzzle.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Diana Nistoran1 & Ioan Vedinaş1 1 Military Technical Academy. Nonetheless it draws some conclusions for the automatic firing also. This can be done through dynamic vibration absorbers and auxiliary mass dumpers both for an existing automatic weapon and mainly for a rifle in the stage of design. It is known that the vibration of the barrel of a weapon during the firing process and the dynamic couple generated by the recoil forces. We have used a dedicated software. Blvd. For this purpose. dynamic parameters of the bullet. The paper analyses the influence made by two dynamic factors on the firing precision. The first one is the measurement of the jump angle. taking into consideration. Mangeron. as the main force. mainly an automatic one. No. 700050. meaning for singular shots. The finite elements model of the rifle was mainly focused on the details of the barrel and the bullet. dynamic vibration absorbers. Iasi. This vibratory movement of the barrel generates at the muzzle dynamic parameters of the bullet: a specific orientation of the bullet. which is done by optical methods. Key words: vibratory movement. Romania Paper ID: C-8 THE ANALYSIS OF THE VIBRATORY MOVEMENT OF THE GUN BARREL AND ITS INFLUENCE ON THE FIRING ACCURACY Alin-Constantin Sava1. 39-49 George Coşbuc Avenue. Mamaia. This was done by using an accelerometer connected at a measuring device and dedicated software. Dumitru Nedelcu2. on the trajectory of the bullet and finally on the precision of firing through the vertical dispersion at the target. we can initiate some measures in order to have a better grouping at the target. asava@mta. measured by the angle made by the axis of the barrel at the bullet exit time and the axis of the steady barrel before shooting. Bucharest. Romania 2 Technical University “Gheorghe Asachi” of Iasi-Romania. as their dynamic is the studied phenomenon here. The second one is the measurement of the vertical acceleration of the barrel at the muzzle at the bullet exit time. 59A. Keywords: aerodynamics. Gliwice. there were created models of aerodynamically effective vehicles. Analysis of existing shapes showed which parts of bodies are aerodynamically efficient and which are not. Institute of Engineering Processes Automation And Integrated Manufacturing Systems Corresponding author: Łukasz Grabowski.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. race car. Romania Paper ID: C-9 APPLICATION OF CAD/CAE CLASS SYSTEMS TO AERODYNAMIC ANALYSIS OF ELECTRIC RACE CARS Łukasz Grabowski. especially when the main objective of the race is the longest distance driven in period of time. which can not be achieved without low energy consumption and low drag resistance of a car. air speeds and streams courses were useful in determining aerodynamic features of every of analysed shape. without compromising the other parameters of the drive. CFD. drag coefficients Cx (Cd) and aerodynamic factors Cx*A allowed to compare all of the shapes to each other. Andrzej Baier. freeform modelling. The resulting drag forces Fx. which were used to create a proper model of conducting the analysis. kammback. lukasz. For shapes modeling Siemens NX 9. Next target of research was checking existence of aerodynamic effects for increasing efficiency of the airflow around the vehicles. Mamaia. Electric car. Obtained results were used to estimation of existing shapes and to make appropriate conclusions. In the article entitled „Application of CAD/CAE class systems to aerodynamic analysis of electric race cars” are being presented problems solved by computer analysis of cars aerodynamics and free form modelling.grabowski@polsl. The biggest challenge for the constructor is the design of shape of the vehicle body that must generate the lowest possible drag force. Analysis results in the values of coefficients and dynamic resistance forces.pl Abstract: Aerodynamics is one of the most important factor which influence on every aspect of a design of a car and car driving parameters. CAx. 120 . During the research of the existence of Kammback effect. There also were analyzed models of basic shapes. Michał Majzner & Michał Sobek Silesian University of Technology. there were compared shapes aerodynamically perfect with modified solids in a Kammback shaped profile way. For aerodynamic tests was used Ansys Fluent CFD software. realize shape. Poland.0 software was used. Pressure distribution. FEM. In a paper the ways of surface modeling with usage of Realize Shape module and classic surface modeling were presented. Faculty of Mechanical Engineering. greenpower. On the basis of them. Analyses have been subjected to existing bolides shapes of a Silesian Greenpower Race Team as well as prototype structures. The biggest influence aerodynamics has on design of a shape of a race car body. For the purpose of the laboratory tests a series of carbon . The article also includes basic information about strain measurements performed on with a resistance strain gauge method.sobek@polsl. Łukasz Grabowski & Michał Majzner Silesian University of Technology. They were arranged in specific locations on the surface of the samples. Institute of Engineering Processes Automation And Integrated Manufacturing Systems Corresponding author: Michał Sobek. Data acquisition was performed using the Easy Catman. Faculty of Mechanical Engineering. The components of composite materials and principles of composition have been discussed. Thanks to their physical properties last three fiber types deserve special attention.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. boron. Tests were made for boundary conditions compatible with the laboratory tests boundary conditions. polypropylene. This allows to assume that they are among the most elaborate tech products of our century.epoxy composite samples were made. High strength to weight ratio allow the use of many industrial solutions. EXPERIMENTAL AND COMPUTER COMPARATIVE STUDIES Michał Sobek. Mamaia. Data acquisition preceded using HBM measurement equipment. glass. strain gauge. carbon and aramid. Particular attention was paid to the epoxy resins and the fabrics made from carbon fibers. epoxy resin. CAE.0. During laboratory strain tests described in the paper Tenmex's delta type strain gauge rosettes were used. metal. Among the fibers used in the industry most commonly used are nylon. Poland. Composites based on carbon and glass fibers are widely used in the automotive. Gliwice. For this purpose. For this purpose plain carbon textile was used with a weight of 200 g/mm 2 and epoxy resin LG730.pl Composite materials used nowadays for the production of composites are the result of advanced research. polyester. carbon fiber. samples were modeled composite corresponding to real samples. Abstract: Keyword: composites. Aramid fibers ideal for the fashion industry where the fabric made from the fibers used to produce the protective clothing. which included measuring amplifier and measuring head. Delta type rossete. In order to verify the results of laboratory tests numerical studies were carried out in a computing environment. michal. That fact is evidenced by the widespread use of them in the most demanding industries like aerospace and space industry. Siemens PLM NX 9. Andrzej Baier. But the heterogeneous materials and their advantages have been known to mankind in ancient times and the they have been used by nature for millions of years. In the paper "Carbon fiber based composite stress analysis. Romania Paper ID: C-10 CARBON FIBER BASED COMPOSITES STRESS ANALYSIS. Laboratory and simulation comparative studies“ issues of stress analysis of composite materials has been presented. 121 . radius R2 of the internal tube is greater than δ = 0. Romania Corresponding author: Tiberiu Axinte. The uniform stresses decrease if there is an external pressure applied on the cylinder.After the relieving operation. Faculty of Naval Electro-Mechanics. Abstract: Keywords: bearing. The external diameter of the internal tube is larger than the internal diameter of the external tube. Romania Paper ID: C-11 CONSIDERATIONS REGARDING THE STRESS RELIEVING IN A SPECIAL PRODUCT Tiberiu Axinte & Gabriel Vladu Constanta Maritime University. In the paper we study the effect of the relieving pressure p. expanded cylinder is mounted on the internal cylinder and after the quenching. measured perpendicular to the contact surface. in other words to achieve a relieving operation. dimension. for the classic way of relieving. stressrelieving. have a value of δ = 0. on the contact surface between the two tubes willbe produces a contact pressure. Mamaia. After cooling.The highest values of the stresses are those on the internal face of the bearing. This is why the external tube has to suffer a thermal expansion. After processing by cutting. the internal tube suffering a compression. on the contact surface it appears a relieving pressure p. where pi = 3000 MPa.05 mm. so that the two displacements summed. 104 MirceacelBatran.The values of normal and shearstress influence the phenomenon of relieving in the bearing because high internal pressures inside the bearing may break the internal tube leading to collapse of the structure. The value of the maximum internal pressure is high. In the normal temperature conditions these two cylinders cannot be assembled.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. After it is heated up.com The special product has a steel bearing structure located inside the shoulders and it is fitted with a steel cylinder loaded by an internal pressure pi. . tibi_axinte@yahoo. 900663. Therefore. If calculations are in accordance with the thirdfailure theory it results that the maximum tangential stresses are the highest values. cylinder. namely by heating up the external cylinder. it must be produced external pressure in order to reduce the stress σtmax. p. the two tubes have a common radius R2.05 mm radius R2 of the external tube. pressure 122 .We are interested in computing the parameters of this technological procedure. at limit being equal to the allowable stress (σa = pi). ontothe stresses if there would be not relieving and the variation of stresses considering relieving of both the internal tube and the external tube. Constanta. which will have an average value between the values they had before the assembling process. The first hypothesis takes into account the mass of the shaft and in the second hypothesis the mass of the shaft is disregarded.In order to determine the torsional stress. Because of these high stresses caused by shocks. 123 . because these tangential stresses are negatively influencing the operation of the asynchronous motors. These analysed aspects are important from an economical point of view. the entire transmitted kinetic energy being transmitted to the rotor‟s shaft and transformed in deformation energy of the rotor‟s shaft. Mamaia. Constanta. the mechanical fatigue in the interior of the shaft. for the main starting variants of the three phase asynchronous motor. a certain moment of inertia (J) and it rotates.Each of the aforementioned starting methods has a certain torque characteristic and a certain relative starting torque determining a different torsional stress for each starting variant. causing the rotor‟s rupture can occur. 104 MirceacelBatran Street. it is assumed that the rotor‟s shaft has a cylindrical form. which are: direct on-line start variant (DOL). it means that the motor starts to rotate immediately. the most adequate materials for the motor‟s manufacturingmay be chosenand the optimal design of the parts loaded by shear stress of the motor can be adopted. because.com The paper aims to determine the torsional stress occurring in the squirrel-cage rotor‟s shaft of the three phase asynchronous motors. determined by the rotation speed of the rotor (n). in this very short time being assumed that no heating due to the friction is produced. Thus. conducting to the cracking or breaking of the shaft. cracks can appear. Faculty of Naval Electro-Mechanics. rotor‟s shaft. Romania Corresponding author: Tiberiu Axinte. having the advantages that it enables a controlled. Moreover. stepless motor start with rated load-torque. torque.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. 900663. tibi_axinte@yahoo. having a certain diameter (D). The model used for the calculations and determinations in this article uses more assumptions. the unit torsional stress corresponding to the shock must be determined. if the shaft is being frequently stressed by shock torsion. moment of inertia. causing in the end the motor‟s failure. and finally. electronic alternative to star-delta starting variant for continuous and stepless motor start.We are interested in the analysis of the maximal tangential stresses occurring by shock torsion. the most expensive and also most advantageous starting method which is the starting variant using the frequency inverter. Using this assumption.In this work the maximal tangential stress being produced in the shaft can be calculated using two hypotheses. Abstract: Keywords: three phase asynchronous motor. It is also assumed that the motor starts to rotate instantaneously with the angular speed ω. after starting with the rotational speed (n). the start variant using a star-delta connection which is the most well-known and used starting variant. the starting variant using a soft starter which is a modern. knowing the values of the torsion stresses occurring during the shock torsion. rotation speed. Romania Paper ID: C-12 TORSIONAL STRESS ANALYSIS OF THE SQUIRREL-CAGE ROTOR FOR THREE PHASE ASYNCHRONOUS MOTORS Tiberiu Axinte & Catalin Nutu Constanta Maritime University. No. Experimental wearing tests revealed an improvement of the rolling contact fatigue life of the thermomechanical treated ball bearings as result of the decreasing in residual austenite amount and structure refinement. an accelerated martensite transformation occurred. This is the most common defect of bearings. Iasi. Romania Paper ID: C-13 IMPROVEMENT OF THE ROLLING CONTACT FATIGUE LIFE AND MECHANICAL PROPERTIES OF BEARING STEELS BY THERMOMECHANICAL TREATMENT Radu Comaneci Technical University “Gheorghe Asachi” of Iasi-Romania. It was found that the thermo-mechanical treatment applied in different H-TMT variants on bearing steels stimulate the carbide precipitation during the high tempering after the quenching from the deformation temperature. Department of Materials Science and Engineering. a high-temperature thermo-mechanical treatment (HTTMT) consisting of hot deformation of the austenite and subsequent quenching to martensite leads to the improvement of both strength and plasticity in high-strength martensitic state. A combination of plastic deformation and phase transformations in the same heat treatment cycle is an effective method for the improvement of both mechanical properties and contact fatigue of steels.com Contact fatigue is a surface-pitting-type failure commonly found in ball bearings due to a Hertzian localized stress state. In common conditions of the hot deformation. 59A. If the HT-TMT is succeeded by a high tempering and a subsequent quenching in a heat-treatment cycle called hereditary thermo-mechanical treatment (H-TMT). Abstract: 124 . Mangeron. Thus. after the final quenching a good level of residual austenite under 5-6% was confirmed by X-ray diffraction. Blvd. amvric@yahoo. After reaustenization. Furthermore. a favorable structural phase changes such as the decrease of residual austenite amount. the contact geometry and the motion of the rolling elements of a ball bearing produce an alternating subsurface shear stress that generates pits. 700050. Mamaia. refinement of the martensite and modified carbide dispersion including new dimensions and morphology are expected. Romania Corresponding author: Radu Comaneci.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. During a normal load. the carbon content in the matrix decreases and a favorable structure for subsequent martensite transformation appears. igostev@hse. Eye region is found using Haar Cascade for face recognition and basic human anatomy knowledge to localize eye regions. Key words: Gaze tracking.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. which demonstrates how often gaze moved to a certain point. On account of the current research innovativeness. a great issue arises: depending on the lighting. reflections in the eye may change during tracking. Indicator‟s quality as its self-descriptiveness and suitability of location is determined by the heat map. The system is based on tracking human eye pupil in infrared illumination. it is needed to have some sort of a static point on the image. thus variety of approaches is combined to achieve the most accurate results. 3) Calibrate and estimate gaze vector. In order to calculate where the person looks. there is no foregone solution. The corneal reflection is assumed as such a point and relatively to it.ru Abstract: The development of new human-machine systems constantly arises a need in determining the type and location of the monitoring and control. It is performed to ensure that small head movements could not affect the tracking accuracy. regardless of external lighting. Mamaia. which attract the most attention. as well as the measured reaction times to certain stimuli presented on the display. Romania Paper ID: C-14 BUILDING A SYSTEM FOR RESEARCH OF ERGONOMIC INDICATORS AND THEIR ARRANGEMENT TO MAN-MACHINE SYSTEM CONTROLS Ivan Gostev & Elena Sibirtseva Department of Buisness-Informatics National Research University “Higher School of Economics” Moscow. image processing and pattern recognition. and this will lead to irrelevant tracking results. because after head movement the gaze directed at the same point has a different offset vector than the previous one. Russia Corresponding author: Ivan Gostev. determining the direction of movements and fixation points on the control panel. To avoid this. Given the relative position between pupil and reflection. To solve the optimization problem of the total time that elapses between the events of noticing and decision making it is necessary to carry out research based on identifying the most informative placement and type of indicators and control elements. we use an infrared diode and camera. so it is indispensable to divide it into four steps: 1) Find eye region. man-mashine interface. 2) Find eye and reflection centers. On the basis of this heat maps conclusions are drawn about the effectiveness and ergonomics of the investigated man-machine interface. The degree of self-descriptiveness and accuracy of location is in direct ratio to the frequency of fixation on the certain points of the area and inversely to the reaction time for some stimulus on this indicator. eye movements are tracked. Eye center and reflections recognition is based on gradient images processed with weights matrix. However. which filter daylight and lets only infrared light. Then to produce a heat map some post-processing filters are applied to the estimated gaze track. 4) Calculate a “heat map” from gaze track. Eye in infrared light has a clear reflection from the infrared diode. whose position is constant. It is clear that the time of recognition. decision-making and response significantly depends on the type of indicators and their location relative to the observer. 125 . the screen actual coordinates of the gaze are determined via a linear mapping procedure. Gaze tracking is an extremely complex issue. A hardware-software system for estimating the information content of indicators and their locations was developed to conduct such studies. It has been designed particularly to test the electric cars engineered by students of Silesian Greenpower project. thermal analysis and more. The engine test stand was designed and modified using PLM Siemens NX 8. 16 Akademicka Street.baier@gmail. Faculty of Automatic Control. Abstract: Key words: engine test stand. Mamaia. The engine test stand is widely used during process of the Silesian Greenpower vehicle design. which means it can be used both for testing the vehicle itself or for tests without the vehicle. Poland Corresponding author: Maja Baier. Poland 2 Silesian University of Technology.com An engine test stand created especially for research of electrical race car is described in the paper. It is crucial as far as the test stand is equipped in two motors – the one being tested and the braking one. The engine test stand is used to test and measure the characteristics of vehicles and their engines. Romania Paper ID: C-15 ENGINE TEST STAND OF ELECTRICAL RACE CAR Maja Baier1. In order to use the test stand conveniently there has been a special application created in LabVIEW. maja. The paper presents both construction of the test stand. 18A Konraskiego Street. The car is an aim of Silesian Greenpower project whose participants build and test electrical vehicles to take part in international races in Great Britain. electric motor. Piotr Mierzwa 2 & Dawid Wylenzek 2 1 Silesian University of Technology.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. control system. Difficulties in adjusting values of speed and torque are caused by their high correlation. The results of tests are shown live on the screen both as a chart and as single values. The control system and measurement system are realized by enabling National Instruments product myRIO (RIO – Reconfigurable Input/Output). motor. Jakub Franiasz 1. powertrain test. The feedback loop is realized by an optical encoder cooperating with the rotor mounted on the wheel. Electronics and Computer Science. Faculty Of Mechanical Engineering. This controller in combination with powerful LabVIEW environment performs as an advanced tool to control torque and speed simultaneously. Gliwice. Its versatility enables powertrain testing.5. The article contains a description how the test stand works and shows its versatility in many areas. The proper control system takes into account this correlation and based on experimentally determined characteristics selects the appropriate control. 44-100. powertrain and braking system with second engine. The construction of the test stand is highly modular. 126 . Gliwice. electrical race car. wheels and tires tests. Such solution enables verifying various concepts without changing the construction of the vehicle. 44-100. After performing several tests there is a report generated. control system and sample results of conducted research. The test stand has its own wheel. which must be based on digital development of products based on integrated files. student. Romania Corresponding author: Adrian Mihai Goanta. The most important consequence of the paper is the obtaining of integrated files that can be subjected to further analysis type CAE / CAM / PDM software components by the same company. all members of the joint teams made up of companies and universities need to access updated and accurate information about products created by any of the type employed. teacher. Also. the author has proposed to provide both synthesis and transformations brought news of the integrated NX from Siemens PLM Software 9. 810017. Based on educational license received for NX 9 was made a detailed study of the innovations made by this release. many companies fail to significantly reduce losses in the process. 127 . modeling. and personal results obtained by applying the same version. goanta_a_m@yahoo. Engineering and Agronomy Faculty of Braila. manufacturing enterprises forced to look for new ways to accelerate the development of digital products through innovation. Romania Paper ID: C-16 DIGITAL DEVELOPMENT OF PRODUCTS WITH NX9 FOR ACADEMICAL AREAS Adrian Mihai Goanta ”Dunarea de Jos” University of Galati. design NX 9. following a news results detailed documentary study. 29. The results consist of: 3D models of all parts and assembly 3D model of the three-dimensional constraints of all component parts and not least respectively all drawings and assembly drawing. Even when using a 3D CAD mature technology.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. In an environment of global research and development of distributed geographically. improve product quality or product type to ensure successful innovations to market arouse interest. Braila. Calea Calarasilor Street. Mamaia. simulation. the steps to take to obtain graphical documentation. the digital and integrated development of a product type device test beams. were synthesized in terms of methodology. Additional advantages related files by the synthesis of integrated CAD / CAE / CAM / PDM.com International competitiveness. These challenges require a radical rethinking of the business model. The author also shows selective CAE results of analyzes performed in the parts subjected to maximum stress. Abstract: Key words: digital development. Current design processes involve more complex products consisting of elements of design created by multiple teams. which belongs to the field of design. disciplines and suppliers using independent CAD systems. global alliances and strategic partnerships. no. and the application of some of them went to graphical modeling and getting all the documentation of a test device bearing beams. Through this work. ECAP is a discontinuous process. pass by pass. leading to a smaller workpiece. and they must be removed for the next pass. Department of Materials Science and Engineering. Blvd. 700050. Relative position of the two channels will define a particular step of the extrusion cycle. three of the channels are blocked and only one punch is moving into the 4th channel to push the workpiece through the 5th left empty channel. Abstract: 128 . ECAP is a well-established method for grain refinement in metallic materials by large shear. Four processing routes were tested: route A without rotation. Romania Corresponding author: Radu Comaneci. In the extrusion process. equal in cross-sectional dimensions.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. amvric@yahoo. It was found that route BC can be conducted in four interconnected operations with better strain homogeneity. route BA and BC with alternating ±90° and same sense 90° rotations respectively. the billet crosses the area corresponding to the bisecting plane of the two channels being subjected to simple shearing To become more effectiveness. The workpiece doesn‟t leave the die and no additional repositioning operations are required. To confirm modeling. and 5 corresponding punches. Successively ordered combinations of the two channels and corresponding punches develop a complete BC cycle. The hardness and accumulated strain fit in qualitative terms. To avoid the decreasing in length of the workpiece.com In last decades. the importance of severe plastic deformation (SPD) and particularly of equal channel angular pressing (ECAP) has been considered thanks to their spectacular mechanical properties reached in obtained ultrafine-grained (UFG) materials. The sample is extruded through a die containing two identical cross-sectional channels. a multi-pass ECAP without removing the workpiece from the die was investigated in the present study. At a given moment. The simulations results were discussed in terms of accumulated strain using the tracking point method for a chronological monitoring. As a result. 59A. Mangeron. A tridimensional finite element analysis to predict the material behavior and accumulated strain distribution was performed. so a new sample pushes out the previous sample. The results create opportunities in developing integrated systems designed to perform different ECAP routes for any imposed number of passes. Iasi. It consists of using a cubic die with 5 rectangular channels. Mamaia. without removing the workpiece from the die. and route C with 180° rotations. the grain refinement can be increased by rotating billet around its longitudinal axis. validating the modeling. No. Romania Paper ID: C-17 FINITE ELEMENT ANALYSIS OF MULTI-PASS EQUAL CHANNEL ANGULAR PRESSING Radu Comaneci Technical University “Gheorghe Asachi” of Iasi-Romania. experimental tests and hardness measurements have been carried out. the head and the tail of the sample become strongly distorted. Romania Paper ID: C-18 ACCELERATED TESTING OF AN OPTIMIZED CLOSING SYSTEM FOR AUTOMOTIVE FUEL TANK Adrian Gligor1. Michigan. Mamaia. as well as showing increased resistance to the action of chemical agents and fuels. Thus. ruptures). din Vale. Viorel Nicolae2 & Gabriela Mitran2 1 Kautex – Textron. Sorin Ilie2. No. The proposed accelerated testing method shows the main advantage of simulation in a limited time all the situations which may be encountered in a much longer period of time.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. defects occurred in the system components (fissures. Troy. In this paper are presented two of durability tests which were performed on an optimized closing system of fuel tank: (i) the test of exposure to temperature with cyclical variation and (ii) the test of continuous exposure to elevated temperature. residual tightening torque. service life. Based on obtained data were plotted the time evolution diagrams of considered parameter (the residual tightening torque of the system consisting of locking nut and threaded ring).ilie@upit. both based on the polyoxymethylene. No. Faculty of Mechanics and Technology. Over deploying the experiments were determined various parameters such as: the initial tightening torque. 129 . becoming possible to make pertinent assessments on the choice between the two types of materials. Tg. Abstract: Key words: accelerated tests. Romania 2 Corresponding author: Sorin Ilie. the tightening torque at different time points during measurements. extreme values of temperature and pressure). cracks. USA University of Pitesti. the residual tightening torque. were designed and conducted accelerated tests under extreme assembling and testing conditions (high values for initial tightening torques. 1. 8 of each of 2 versions of material. Automotive and Transport Department. the sealing conditions of system at the beginning and at the end of test.ro Taking into account the legal prescriptions which are in force and the new regulatory requirements that will be mandatory to implement in the near future regarding testing characteristics of automotive fuel tanks. Pitesti. material that provides higher mechanical stiffness and strength in a wide temperature range. in different temperature conditions. sorin. 750. Stephenson Highway. it can be created a clear picture of the capacity of closing system of fuel tank to fulfil the functional requirements following the exposure to values of testing parameters significantly above the values that may appear throughout the entire service life of the vehicle. automotive fuel tank. closing system. The tested sample included a total of 16 optimized locking systems. 110040. resulted the necessity to develop a new testing methodology which allows to estimate the behaviour of the closing system of automotive fuel tank over a long period of time (10-15 years). namely the service life of the vehicle. testing methodology. By conducting these tests and interpreting the obtained results. In these experimental tests have been used main components of the closing system manufactured of two materials variants. ionelo@ub. Cooling liquids or lubricants used requires a special attention. Appropriate nozzle geometry could use a minimum quantity of coolant that can accurately be sent to the area to be cooled. Romania Corresponding author: Ionel Olaru. air) as well as a mixture of liquid (emulsions) to achieve a good cooling in function of temperature that develops in the area concerned. the flow of fluid through nozzles may be regarded as adiabatic expansion. a larger quantity of fluid can generate high production costs. The simulations are performed using a specialized program with finite element which analysis the flow through the different nozzles with different operating parameters and different geometries of a convergent-divergent nozzle. depending on their chemical composition and reaction with various heated zones of the process may be harmful to the operator. a greater quantity of liquid consumed can be harmful environment. divergent. flow. A study of geometry nozzle is particularly important in optimizing the quantity of coolant in terms to minimize that quantity or coolant can be used for lubrication of machines moving parts. Bacau. The nozzles have a special geometry to send a small amount of liquid but to have a good cooling effect.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Romania Paper ID: C-19 A STUDY OF FLUID FLOW SIMULATION IN CONVERGENT–DIVERGENT NOZZLES Ionel Olaru “Vasile Alecsandri” University of Bacau. 130 . This study will focus on the analysis of cooling systems for cutting processes on machine tools.ro In industrial applications coolants are used for different working situations. These simulations can be compared to real working conditions on the machine tool system. nozzle. convergent. Abstract: Key words: fluid. Mamaia. Calea Marasesti 157. The study from this paper proposes an analysis and a simulation of flow through the convergent-divergent nozzle type to optimize them and also to use a minimum quantity of coolant or lubricant. The cooling fluid is sent in the area to be cooled in particular by means of nozzles. A nozzle is generally a device that increases the velocity of a fluid flow at the expense of this pressure. Coolants can be from the simplest (water. several models for carbon isotope separation have been proposed. and even less information is available as far as the separation process modeling and control are concerned. the transport stream was divided into sections and these sections will be analyzed successively. No. one of them being the cryogenic distillation of carbon monoxide. because of the large processing times. 13C isotope separation column.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. A first attempt to model the system as a unitary whole led to the blocking of the model during simulation. 11-13. Carbon isotopes can nowadays be separated using many methods. Blvd. some on the nonlinear wave theory or the Cohen equations For modeling system we have used Petri nets because we have in our case discrete event systems. Abstract: Key words: control. Mamaia. In use of the non-timed and with auxiliary times Petri model. component and energy balance equations. some based on mass. Referring to a classic distillation process. Faculty of Science and Engineering. Alba Iulia. loredana_boca1@yahoo. Due to the complexity of the system and the large amount of calculations required it was not possible to analyze the system as a unitary whole. N. 131 . 515900. Romania Corresponding author: Boca Maria Loredana. However. The major issue with 13C comes from the difficulty of obtaining it and raising its natural fraction. Very few aspects regarding the construction and operating conditions of such cryogenic plants are known today. petri nets. the efficient control of the carbon monoxide distillation process represents a necessity for large-scale 13C production. Romania Paper ID: C-20 ASPECTS REGARDING AT 13C ISOTOPE SEPARATION COLUMN CONTROL USING PETRI NETS SYSTEM Maria Loredana Boca & Mihaela Elisabeta Ciortea “1 Decembrie 1918” University of Alba Iulia-Romania. Iorga.com In this paper we simulate the control of 13C Isotope Separation column using Petri net. 11-13. the vapor pressure (P1) of (12C16O) is greater than the pressure (P2) of (13C16O) and the separation coefficient is: Abstract: o P1 1. b) increasing the pressure in the vacuum cover of the column.com This paper presents present the model of one decisional system for 13C Isotope Separation column. Alba Iulia. N. 515900. In these simulations.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. loredana_boca1@yahoo. The start model was a model of one distributed control system of critical situations that may arise in the operation of the distillation column. Romania Paper ID: C-21 MODEL OF DECISION SYSTEM FOR 13C ISOTOPE SEPARATION COLUMN Maria Loredana Boca “1 Decembrie 1918” University of Alba Iulia-Romania. 132 . The column. Iorga. Our model decision system give a signal to the sensor to alarm when something is wrong in the condenser. Key words: decision system. At extremely low temperatures (about -192oC).007 o P2 In this research we make a model of decision system witch implement a temperature sensor inside of liquid nitrogen level in the condenser. to transmit data. separates the carbon isotopes based on the cryogenic distillation of pure carbon monoxide. Romania Corresponding author: Boca Maria Loredana. using the model for mission critical situation detection. which is fed at a constant flow rate as a gas through the feeding system. Mamaia. The work temperature is very low about -192oC. a wireless communication network is used. 13C isotope separation column. Faculty of Science and Engineering. with the simplified scheme. two critical situations that may arise due to increased pressure: a) increasing the pressure inside the column. model. and is a very critical location of the column because the temperature can grow or go down more than 2 degrees. No. We considered as study case. In this way we have to deeply monitor and supervision this condenser and make a decision in a proper time when the temperature is in a critical situation. Blvd. 060042. The experimental setup is using common ultrasonic transducers in a special geometrical arrangement. The various guided modes velocities and attenuations are determined for several fluid which might be filling and surrounding the common size steel pipes. Mihail Boiangiu1. The flexural modes are highly dispersive and attenuated. Mamaia. modal attenuation. There are three classes of guided modes in a pipe: longitudinal. Dept. Dept. Splaiul Independentei 313.mec. However. The numerical data are compared with results obtained in laboratory experiments. The torsional modes are less dispersive. These dispersion curves are used for optimal numerical simulation. Abstract: Key words: guided waves. Cristian Cătălin Petre2. from the three classes explained before. The interaction of these ewaves with axial flaws is more pronounced. The obtained results allow a motivated selection of the least attenuated mode. 060042. torsional and flexural. The longitudinal modes have an axial symmetry of the radial and axial displacements. of Mechanics. These waves are dispersive. the wave velocity strongly depending on the frequency. Andrei Crafăleanu1 & Ovidiu Vasile1 1 University Politehnica of Bucharest. in order to verify the attenuation mechanism. represents a domain of highest importance. 133 . the radial displacements are negligible.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Romania Paper ID: C-22 DETERMINATION OF MODAL ATTENUATION DUE TO EXTERNAL AND INTERNAL FLUIDS IN PIPES Mihai Valentin Predoi1. reducing the interaction with the surrounding fluids and thus reducing the attenuation.ro The ultrasonic nondestructive evaluation of structural integrity of pipes in high risk industres such as chemical or nuclear. Bucharest. The maximum expected inspection range can be accurately determined before the inspection on real industrial piping. Splaiul Independentei 313. The inspection of kilometres of piping in rough conditions is a difficult if not an impossible task. these modes can propagate in the pipe and their properties must be understood. Romania Corresponding author: Mihai Valentin Predoi. Moreover. A dedicated software package developed by our team is used for this purpose. The presence of fluid inside and in some cases outside the inspected pipe represents a challenging problem of computing the guided modes dispersion curves. important information concerning the presence of flaws. E-mail predoi@cat. Romania 2 University Politehnica of Bucharest.pub. especially the fundamental SH0 mode. The experiments allow the measurement of the numerically predicted modal attenuation. These waves prove to be most sensitive to partly circumferential flaws. using the Finite Elements Method (FEM). of Strenght of Materials. filled with various fluids. at a given inspection frequency and for a typical steel pipe. Bucharest. if the symmetry of the emmiting transducer is not perfect. pipes. Guided ultrasonic waves can propagate however along tens of meters in pipes and bring by the reflected signal. 30 Eroilor Street. the first coming into contact with the material being excavated cutting edge. From the analysis it can be concluded that the polygonal profiles made of dihedral angles are much more durable and asymmetric cups tend to have uniform tension along the entire perimeter. pecinginaolimpia@yahoo. For determination of stress and strain field on the form design of cutting edge profile will apply maximum force assuming uniform distribution and on the edge surface force will apply a radial force. to increase the reliability and durability of the studied machine parts thus the machine. Therefore in the study with finite element analysis is retained only cutting edge. The geometric design retains the cutting edge shape and on this on the tooth cassette location will apply an areal force on the abutment tooth. The purpose of the calculation is to determine the displacement and tensions field for both profiles considering the maximum force applied on the cutting edge and the depth of the cutting is equal with the width of the cutting edge of the tooth. Faculty of Engineering. displacement. In the course of excavation work on all bucket cutting force components. cutting edge. It is obvious usefulness of knowledge the state of mechanical tensions that the designed piece or the assembly not to break under the action of tensions that must cope during operation. The cutting edge real pattern is subjected to finite element study for the worst case of rock cutting by symmetrical and asymmetrical cups whose profile is different.com Changes in geological components of the layers from lignite pits have an impact on the sustainability of the cup path elements and under the action of excavation force appear efforts leading to deformation of the entire assembly. 210135. can be seen that at the rectangular profile appears the "clogging" phenomenon of the cutting edge and at the polygonal profile the point of application remains constant without going inside. Tg-Jiu. Romania Paper ID: C-23 MODELING BUCKET EXCAVATION BY FINITE ELEMENT Olimpia Mioara Pecingina University “Constantin Brancusi” of Tg-Jiu.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. After geometric patterns discretization on the cutting knives and determining stress field. tensions. Mamaia. Abstract: Key words: lignite pits. finite element method. To study the field of stress and strain on the cutting edge will be created geometric patterns for each type of cup this will be subject to static analysis. 134 . Romania Corresponding author: Olimpia Mioara Pecingina. It will consider the worst case when on the structure will act both the tangential force and radial force on the bucket profile. Application of finite element method in the optimization of components leads to economic growth. profile. air filtration (incorrectly selection of filter causes a penetration of dirt from entering the system and increase frictional resistance). Key words: condition monitoring. pneumatic hose.hetmanczyk@polsl. Measurements were carried out in the extreme values of the attenuation coefficient (0%. characteristics of the load (force: mass or concentrated. Machines based on pneumatic drives belong to units with high reliability indexes. Additionally the frictional force varies within a change in movement speed of the piston and the pressure in the actuator cylinder. Romania Paper ID: C-24 INFLUENCE OF THROTTLING OF PNEUMATIC ACTUATORS AT THE POSITIONING ACCURACY Mariusz Piotr Hetmanczyk & Piotr Michalski Silesian University of Technology. vibration level (based on the effective values of velocity) measured with sensors mounted on the moving elements (connected rigid with the piston) and cylinder cap (at the top side). etc.). Institute of Engineering Processes Automation and Integrated Manufacturing Systems. Furthermore at positioning of the moving parts of pneumatic drives directly affect: set value and fluctuations in the supply pressure. The probe mass was selected within cushioning diagram so that the operating point was placed on the curve of limiting speed of movement of the actuator. During the measurements. The article presents a study of the impact of setting control parameters and external disturbances on the positioning accuracy of rodless double acting actuator. The main cause of problems is the air compressibility. throttling valves. Faculty of Mechanical Engineering. 135 .pl Abstract: Changing the dynamic motion parameters of pneumatic equipment requires control of pressure and the volumetric flow rate. Despite many advantages still exists a problem connected with the positioning of linear and rotary actuators. fixed or variable). Testing process was carried out at different values of the adjustable parameters of the actuator and external loads. vibrations. Konarskiego 18A. the movement speed setting is made by the operator in a manner dependent on the experience. Poland Corresponding author: Mariusz Piotr Hetmanczyk. pneumatic systems. applied lubrication and operating temperature (affecting the density of the used oil or lubricant). losses of pressure (directional control valves. 44-100 Gliwice. the following parameters were recorded: piston position. The border factor was defined as value resulted in the loss of motion smoothness at the stage of the movement and positioning with given parameters of the pneumatic medium. In most cases. Mamaia. The primary objective of this study was to determine the relationship between the three parameters that affect the positioning accuracy of pneumatic linear drives (supply pressure. mariusz. velocity and mass of the displaced value).ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. positioning accuracy. 50% and border) setting on non-return throttle valves. vibration level (based on the effective values of velocity) measured with sensors mounted on the moving elements (connected rigid with the piston) and cylinder cap (at the top side). cushioning.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. vibrations.pl Work quality of pneumatic actuators can be assessed in terms of multiple criteria. Described drives are equipped with end-position cushioning circuits which allow minimising of strokes of the piston at covers. The primary target of presented researches is to determine the suitability of the use of vibration diagnostic methods for the quality estimation of operation of pneumatic systems and minimizing energy due to the motion of the piston. Konarskiego 18A. 44-100 Gliwice. The paper presents the impact assessment on the operating parameters of the rodless pneumatic cylinder on selected vibration symptoms. During the measurements. Rodless cylinders are often used in the construction of pneumatic manipulators. The basis of presented studies is strictly connected with problems arising from the lack of methods allowing tuning of linear pneumatic actuators in order to increasing the life of the drive. Faculty of Mechanical Engineering. mariusz. In most cases the maintenance service of production plants based on experience without evaluation of measured parameters. Mamaia. 136 . In case of complex systems with pneumatic drives retained at end positions (impact of the piston in cylinder covers) the vibration criteria constitute reliable indicators. simplicity of construction. Abstract: Key words: condition monitoring.hetmanczyk@polsl. Pneumatic actuators have gained great popularity in the industry. the following parameters were recorded: pressure at the outlet of draining chamber (cushioned chamber) with usage of throttle valve dedicated to cushioning (pneumatic throttling). Poland Corresponding author: Mariusz Piotr Hetmanczyk. The actuator has been inclined with respect to horizontal direction to determine the effect of the braking weight on speed and vibration of the actuator (force and torque load). thanks to the many advantages among other things: cleanliness of work. simple adjustment of durability and high resistance to external factors. Romania Paper ID: C-25 THE QUALITATIVE ASSESSMENT OF PNEUMATIC ACTUATORS OPERATION IN TERMS OF VIBRATION CRITERIA Mariusz Piotr Hetmanczyk & Piotr Michalski Silesian University of Technology. Cyclic hitting of the piston in cylinder covers (front and back) is a negative phenomenon lowering the actuator lifetime. minimizing the kinetic energy of conveyed masses and vibrations of machines. pneumatic systems. linear movement mechanisms and applications with high loads of forces and bending moments. Institute of Engineering Processes Automation and Integrated Manufacturing Systems. On the basis of performed analysis the authors shown method allowing evaluation of the performance and tuning of end position of damping piston with usage of most common diagnostic tools (portable analyzers of vibrations). These sensors detect practically all objects.hryniewicz@polsl. Konarskiego 18A. przemyslaw. Vision systems are one of sensors families. robotised workcell. Abstract: Key words: Object recognition. 44-100 Gliwice.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Lack of required supervision over the production process can lead to incorect manufacturing of the final element. Integrating the vision system with the Labview Vision and the Labview Vision Builder it is possible to determine not only at what position is the given element but also to set its reorientation relative to any point in an analyzd space.pl One of the most important tasks in the production process is to supervise its proper functioning. The worst result is the damage of the equipment involved in the manufacturing process. through the production line downtime and hence to financial losses. Institute of Engineering Processes Automation and Integrated Manufacturing Systems. The paper present exemplary process of automated inspection of the manufacturing process in a manufacturing workcell using the vision supervising system. The only problem is considered with transparent or mirror objects. Wacław Banaś. regardless of their shape or even the state of matter. Romania Paper ID: C-26 TECHNOLOGICAL PROCESS SUPERVISING USING VISION SYSTEMS COOPERATING WITH THE LABVIEW VISION BUILDER Przemysław Hryniewicz. Engineers supervise the production flow correctness use the great range of sensors supporting the supervising of a manufacturing element. Mamaia. Labview Vision. they become the cheap and universal type of sensors. Aleksander Gwiazda. In recent years. Faculty of Mechanical Engineering. detected from the wrong angle. Poland Corresponding author: Przemysław Hryniewicz. Krzysztof Foit & Agnieszka Sękala Silesian University of Technology. 137 . thanks to the accelerated development of electronics as well as the easier access to electronic products and attractive prices. Developed and implemented algorithms and methodology support operations of enterprises in different areas: area of works organization in the enterprise.computer production orders verification system. Abstract: Key words: production planning and control.SWZ SYSTEM OF ORDER VERIFICATION Damian Krenczyk & Bozena Skolud Silesian University of Technology. In the paper examples of the application of SWZ system comprising the steps of planning and control have been presented. Poland Corresponding author: Bozena Skolud. SWZ system enables determining the control procedures assigned to resources in the form of local dispatching rules for the steady-states of production flow and the transient dispatching rules for the starting-up and cease of production. performed periodically during the production flow in the system. Konarskiego 18A. Mamaia. Romania Paper ID: C-27 COMPUTER AIDED PRODUCTION PLANNING .skolud@polsl. SWZ is a computer implementation of the methodology that support fast decision making on the acceptability of a production order. which allows to determine not the best possible solution. used during the initiation and termination of orders in the production system. 138 . integration. dispatching rules.pl The SWZ . SWZ has been enhanced with a module generating XML documents containing the information entered into the system and output script code of the simulation model. bozena. but admissible solution that it is possible to find in an acceptable time (feasible solution) and acceptable due to the existing constraints.determination of the manufacturing system parameters those that ensure execution of orders in time under the resource constraints.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Faculty of Mechanical Engineering. transient state. The methodology uses the propagation of constraints techniques and reduced to test a sequence of arbitrarily selected conditions. The obtained results allowing the determination of acceptable production flow in the system . The generated rules are designed to ensure the acceptable production execution quality (without deadlocks and starvations) and timely execution of orders. 44-100 Gliwice. Fulfillment of all the conditions (the conjunction) provides the ability to perform production orders. SWZ also generates information about the necessity to reject the production order which do not have a chance to perform in due date with the identified resource constraints. assisting in the decision-making processes of the acceptance or rejection of the production orders for production planning is presented in the paper. SWZ also allows to generate the dispatching rules as a sequence of processing operations for each production resource. The multi-assortment concurrent rhythmic production has been taken into account in this approach. during the development process of product and manufacturing processes design. Furthermore the examples of SWZ and simulation systems integration have been shown using the original integration methodology based on data transformation methods. in activities related to the maintenance and throughout the monitoring of works progress process and utilization of resources. At the first stage. a non-classical synthetic method applied in designing mechanical or mechatronical systems. this being done in order to obtain the structure and parameters of a system composed only of passive elements in the form of inert and elastic elements. Using method and obtained results can be value for designers of mechanical systems with elements reducing vibrations. The presented approach i. reduction of vibrations. designer match active subsystem reducing unwanted vibrations. in particular.e. Faculty of Mechanical Engineering. 139 . The synthesis may also be applied to modify the already existing systems in order to achieve a desired result. In this paper was used method of polar graphs and their relationship with algebra of structural numbers. introduced in this paper.bialas@polsl. passive elements. Presented approach simplifies the process of selecting the dynamical parameters of systems in view of their dynamical characteristics. can be conducted as early as during the designing of future functions of the system as well as during the construction of the system.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Abstract: Key words: analysis. This active subsystem was consisted from electric elements. Active elements give better results in case of reduction of low frequency vibrations. This method is called a non-classical method. active elements. In result of conducted synthesis was received structures and parameters of a discrete model meeting the defined requirements concerning the dynamic features of the system. Institute of Engineering Processes Automation and Integrated Manufacturing Systems. katarzyna. synthesis.pl The main purpose of this work is the presentation synthesis of mechanical systems including active elements reducing unwanted vibrations. one (as early as at the design and construction stage) may verify future systems. 44-100 Gliwice. Thank to the approach. Poland Corresponding author: Katarzyna Białas. the frequency spectrum.The aim of this paper is also analysis of of obtained systeme to check relationship between basic system and active subsystem reduction vibrations. Romania Paper ID: C-28 REDUCTION OF VIBRATION BY USING MECHATRONICAL SUBSYSTEM Katarzyna Białas & Andrzej Buchacz Silesian University of Technology University. The synthesis consists of two basic stages. The use of such a method enables the analysis and synthesis of mechanical systems irrespective of the type and number of the elements of such a system. Mamaia. At the second stage. it is necessary to define the requirements related to the frequency of free vibration of the system. The application of active elements to eliminate vibration enables overcoming limitations which occur if passive elements are used. while designing a new system. Konarskiego 18A. Konarskiego 18A. The creation process of selfgenerative model consists of the three stages it is knowledge and information acquisition. These methods make the constructional design process much faster. Wojciech Kempa2 & Iwona Paprocka1 1 Silesian University of Technology. The conducted research on assessing the usefulness of elaborated models showed that they are highly recommended in case of routine tasks automation. self-organising model. In this case design model selforganizing means that aside from the possibility of making of automatic changes of model quantitative features these models possess knowledge how these changes should be made. It also needs a quite great investment outlays. It always depends on a problem complexity. In the paper examples of each type of the self-generative model are presented. 140 . From knowledge processing point of view the best choice is application of the knowledge fusion. Poland Corresponding author: Cezary Grabowik. But it is still difficult to distinguish which method of self-generative preparation is most preferred. Moreover they are able to change quality features according to specific knowledge.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. 44–100. Krzysztof Kalinowski1. These models are known as self-generative or auto generative and they can behave in an intelligent way. model type selection and model implementation. Gliwice. Mamaia. Abstract: Key words: CAD. In spite of undoubted good points of selfgenerative models they are not so often used in design constructional process which is mainly caused by usually great complexity of these models. NX. Konarskiego 23A Str. Faculty of Mechanical Engineering. Institute of Engineering Processes Automation and Integrated Manufacturing Systems. In this paper methods of the computer aided design with selfgenerative models in NX Siemens CAD/CAE/CAM software are presented. knowledge fusion and OPEN API mechanism.grabowik@polsl. 44-100 Gliwice. The main difference between the auto generative and fully parametric models consists in the auto generative models ability to self-organizing. OPEN API. Romania Paper ID: C-29 A METHOD OF COMPUTER AIDED DESIGN WITH SELF-GENERATIVE MODELS IN NX SIEMENS ENVIRONMENT Cezary Grabowik1. The easiest way for such a model preparation is this with the parametric relations model whilst the hardest one is this with the OPEN API mechanism. part families. These models are especially useful in an automation of routine design tasks. GRIP language application. It is suggested to prepare this kind of self-generative models when there is a need of design variants creation. cezary. There are the five methods of self-generative models preparation in NX with: parametric relations model. auto generative model. Institute of Mathematics. knowledge fusion.pl Currently in CAD/CAE/CAM systems it is possible to create 3D design virtual models which are able to capture certain amount of knowledge. This complexity makes the process of self-generative time and labour consuming. Poland 2 Silesian University of Technology.. The Faculty of Applied Mathematics. when an operator supports more than one machine. There are also solutions in which a single resource represents a production cell of a higher level. Presented issues are crucial when modelling of production scheduling environment and designing of structures for the purpose scheduling software development. A situation in which the sets of basic and additional resources are not separable – the same additional resource may be a basic resource for another operation is also considered. In such situations. Institute of Engineering Processes Automation and Integrated Manufacturing Systems. Iwona Paprocka1 & Wojciech Kempa2 1 Silesian University of Technology.g. department or a production plant in a specific location.kalinowski@polsl. Faculty of Applied Mathematics. and next. can be indicated. modelling.g. Scheduling of operations. including greater amount of resources can cause many difficulties. Poland 2 Silesian University of Technology. Abstract: Keywords: scheduling. the basic and often the only type of regarded resources is a workstation. Cezary Grabowik1. Additional resources are most often referred to these human resources.. e. In the paper the concept of the division into of basic and additional resources and the way of their planning was shown.g. depending on whether the resource is involved in the entire time of operation. or supervises the execution of several operations. device or even as a separated space on the shop floor. It can be understood as a machine. Mamaia. Romania Paper ID: C-30 PRODUCTION SCHEDULING WITH DISCRETE AND RENEWABLE ADDITIONAL RESOURCES Krzysztof Kalinowski1. Resource requirements for an operation may relate to different resources or resources of the same type. 44-100 Gliwice.pl In this paper some different approaches to planning of additional resources when scheduling operations are discussed. 23 Kaszubska Str. as auxiliary staff at setup time) or cyclic – e. Regardless of the above. The considered resources are assumed to be discrete and renewable. a division. In most research in scheduling domain. by scheduling at the higher level of the cells first. for which the limited availability in the manufacturing system may have an influence on the execution date of an operations in the schedule. additional resources. in the particular cells of the lower level. Poland Corresponding author: Krzysztof Kalinowski. 18A Konarskiego Str. a work centre or production line. krzysztof. Faculty of Mechanical Engineering. only in the selected part(s) of operation (e. discrete and renewable resources. the schedule can be created in a hierarchical manner. The date and time of resources participation in the operation can then be different. required for its implementation. during the detailed scheduling of operations the need of using more than one resource. tools or equipment. 141 .ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. 44-100 Gliwice. more detailed. Institute of Mathematics.. eoanta@yahoo. 900663. Among these cases. The paper presents an analysis of this particular type of models and presents solutions regarding a strategy to conceive a general data structure which may be used for the rapid development of software applications. of the bending moments. Faculty of Navigation and Naval Transport. high flexibility. Emil Oanta2. has open-system features and leads to the development of flexible cross-platform software libraries to be used in various other directions. There are several examples in structural studies when either analytic approaches or numerical methods are producing systems of equations. The definition of the data type takes into consideration the nodal parameters. we may consider the following cases: interpolation which uses spline functions. Constanta. Romania 2 Constanta Maritime University.com Abstract: The creation of the computer based models in engineering may lead to the creation of a system of equations which must be solved. Faculty of Power Engineering. 142 . 900663. for instance in the case of the method of initial parameters we have the equations of the shear force. Romania Corresponding author: Emil Oanta. In this way. Romania 3 Politehnica University of Bucharest. computer aided engineering. There were identified two types of equations which use this node-wise information: a first class of equations are connecting the parameters of the same node. identifiers of these nodal parameters. Mamaia. 060042. 104 Mircea cel Batran Street. designated nodes. we may identify a particular set of cases where the unknowns are grouped in certain points. Faculty of Naval Electro-Mechanics. Last but not least. Key words: data assembling process. original software applications. Bucharest. or using the finite difference method. of the rotation and of the displacements. Tiberiu Axinte2 & Anca-Elena Dascalescu3 1 Constanta Maritime University. Constanta. Following these ideas there is proposed a general approach to define the nodal data as a data type to be used in the classes oriented programming languages widely used nowadays. 313 Splaiul Independentei. The second class of relations connects the same type of parameters belonging to two adjacent nodes. flags of these nodal parameters and others. there should be reminded that the paper is based on an extensive experience in software development of turn-key software instruments for engineering problems. One of the most important consequences is the creation of the software library used as a foundation for the development of intelligent software instruments which take into account all the parameters that influence the phenomenon under investigation. displacements of a thin plate using the finite difference method.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. 104 Mircea cel Batran Street. Sector 6. Romania Paper ID: C-31 STUDY REGARDING THE DATA ASSEMBLING PROCESS FOR COMPUTER AIDED ENGINEERING APPLICATIONS Alexandru Pescaru1. deflected shape of straight bar modelled either by the use of the method of initial parameters. One of the most important consequences of the paper is the design of a library which includes the optimized solutions previously tested. To minimize the execution time. there is targeted the development of a software library which may be used for the easily development of nodebased CAE applications. Along time. the finite element method applications used to have an input data generator which was creating the entire volume of geometrical data. Abstract: Key words: arbitrary precision data types. starting from the initial geometrical information and the parameters stored in the input data file. Beside this example CAE applications use various stages of complex computation. regardless the size of the input data. Sector 6. The paper also presents the results regarding the arbitrary precision data types tests. Romania Corresponding author: Emil Oanta. 104 Mircea cel Batran Street. The modern software application use pre-processing and post-processing programs to easily handle the information. such as: renumbering of the nodes meant to minimize the size of the band length of the system of equations to be solved. Mamaia. software library. 143 . 900663. type conversion. 104 Mircea cel Batran Street. facile modelling in engineering. 900663. Romania 2 Constanta Maritime University. eoanta@yahoo. experimental data reduction programs. Last but not least. applied general numerical methods applications. there were several data processing stages. Bucharest. assemblation of system of equations. The paper presents the various computing techniques which were imagined and implemented in the resulting applications: finite element method programs.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. data generators. solving the system of equations. the system of equations being automatically generated and solved. The implementations of the algorithms are usually software applications which are processing a large volume of numerical data. the memory allocation tests and the type conversion tests. Faculty of Naval Electro-Mechanics. that may be used for the easily development of original CAE cross-platform applications. In this way. To avoid the memory-related problems the data was stored in files. the development of CAE applications was a constant concern of the authors and the accuracy of the results was a very important target. Tiberiu Axinte2 & Anca-Elena Dascalescu3 1 Constanta Maritime University. the use of the extended precision data types was one of the solutions. 060042. graphical applications. each node having several known or unknown parameters. being very interesting the accuracy of the final results. computation of the element stiffness matrix. Romania Paper ID: C-32 EXTENDED PRECISION DATA TYPES FOR THE DEVELOPMENT OF THE ORIGINAL COMPUTER AIDED ENGINEERING APPLICATIONS Alexandru Pescaru1. part of the file was accessed using the dynamic memory allocation facilities. 313 Splaiul Independentei.com Computer aided engineering is based on models of the phenomena which are expressed as algorithms. the limitations being imposed by the size of the memory which may be allocated. Faculty of Navigation and Naval Transport. computation of the equivalent nodal forces. Romania 3 Politehnica University of Bucharest. computation of the secondary variables. beside the generality of the data type solutions. Faculty of Power Engineering. Moreover. finite difference element method programs. In this context. Constanta. Constanta. Emil Oanta2. [2] and [3]) we derive a system of integral equations for the queue-size distribution conditioned by the initial state of the buffer queue. B. Applying the approach based on the memoryless properties of exponential distribution and the formula of total probability (compare e.g. Berlin: Springer (2013). if the buffer is saturated. repair time. Mamaia.pl Abstract: The in-depth analysis of the operation of a manufacturing line with an unreliable service station at different traffic scenarios requires the knowledge about the behaviour of key stochastic characteristics of the system. modelled by a finite-buffer queueing system with server breakdowns.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Eds..July 2. 44-100 Gliwice. 2014. 2. It is worth noting that in the literature analytical results obtained for queues with server breakdowns are dedicated mainly to the stationary state of the system. manufacturing line. vol. Wojciech M. Kempa: Time-dependent queue-size distribution in the finite GI/M/1 model with AQM-type dropping. is being lost. Institute of Mathematics.. Faculty of Applied Mathematics. ASMTA 2014. 13. Cezary Grabowik 2 & Krzysztof Kalinowski 2 1 Silesian University of Technology. 1 (2012). Proceedings. the convergence rate of transient stochastic characteristics of the system to the stationary ones is often too slow to accept the stationary regime as the determinant of a typical system‟s behaviour. G. no. M. Key words: finite buffer capacity. Acta Electrotechnica et Informatica. working time. (Lecture Notes in Computer Science. In: Analytical and stochastic modeling techniques and applications. Kempa 1. as it seems. Mathematical Communications. Sericola. Horvath. so in the case of relatively frequent breakdowns it is difficult to observe the system working in the stationary regime. vol. and in the prediction of line‟s evolution in different scenarios. 85-90. 144 . transient state. 3. A typical input stream of individual jobs is generalized by considering batched arrivals occurring according to a compound Poisson process. 18A Konarskiego Str. The solution of the corresponding system written for transforms of conditional distributions we obtain by using the linear-algebraic approach (see [1]). References: 1. joins the buffer queue or. queue-size distribution. it is often necessary to analyse system‟s operation just after its opening or after applying a new control mechanism. Faculty of Mechanical Engineering. Kempa: Time-dependent behavior of queueing delay in GI/M/1/K-type model N-policy: analytical study with applications to WSNs. Budapest. Firstly. like the queue-size distribution of waiting jobs or the number of jobs being completely processed during the fixed time period. Institute of Engineering Processes Automation and Integrated Manufacturing Systems. vol. so before the system stabilizes. 8499 0302-9743). Poland Corresponding author: Wojciech M. Romania Paper ID: C-33 TIME-DEPENDENT SOLUTION FOR THE MANUFACTURING LINE WITH UNRELIABLE MACHINE AND BATCHED ARRIVALS Wojciech M. 110-124. In the article we study the time-dependent queue-size distribution in a single-machine manufacturing line with failures. Wojciech M. a machine failure “cancels” the stationary state of the system. time-dependent (non-stationary) analysis of system‟s behaviour is often desired or even necessary. Wojciech M. If the arriving job finds the machine busy with processing a job. wojciech. 17. The study delivers theoretical solution for time-dependent behaviour of the queue of waiting jobs which can be helpful in the performance evaluation of a real manufacturing line. 4 (2013). June 30 . Telek. However. The evolution of the system can be observed during successive working periods followed by repair times. no. Next. Finally.kempa@polsl. 23 Kaszubska Str. 21st International Conference. Iwona Paprocka 2. Kempa. Kempa: On transient queue-size distribution in the batch arrival system with the N-policy and setup times. 44-100 Gliwice. 285-302. Poland 2 Silesian University of Technology. Hungary. Successive jobs are processed individually with exponentially distributed service time. The recurrence plot investigation for the analysing of the internal combustion engine as is presented in this paper. George Cosbuc nr. engine angular speed or hourly fuel consumption could be considered realizations of that dynamical system. The starting point of the recurrence plot analysis is the idea that a measured time series is the result of the interaction of different relevant variables of a dynamic process. Engine torque. Bucharest 050141. The method (RPA) infers characteristics of the original system and predicts its behavior in the future given the history of its output. sector 5. In the last three decades the recurrence plot analysis has been developed as another method to describe complex dynamics. & Dănuț Grosu Military Technical Academy. of Military Automotive and Transportation. Kamhorst and Ruelle. Romania Corresponding author: Octavian Alexa. This work is an incipient research.com In many technical disciplines modern data analysis techniques has been succesfully aplied to understand the complexity of the system. In this respect we've conducted a large number of tests using more than 10 cars with 1. engine torque. Dept. alexa. Most of the experimental data were acquired and stored in the tester and other two them were computed using static characteristics of the engine that had been obtained on the test bench. an internal combustion engine is a highly complex system with a large number of parameters that influence its dynamics. Constantin-Ovidiu Ilie. Our research was motivated by the desire to identify more intimate dependencies between outputs and inputs of the internal combustion engine. Abstract: Key words: recurrence plot. shows some of the RPA capabilities in this domain. It opens a wide field of action for future research programs. internal combustion engine. Romania Paper ID: C-34 RECURRENCE PLOT FOR PARAMETERS ANALYSING OF INTERNAL COMBUSTION ENGINE Octavian Alexa1. 39-49. Each of that measured parameter is a one-dimention output of a multidimesional dynamic system. Recurrense plot analysis (RPA) was introduced for the first time in 1987 in the paper published by Eckman. Bd.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. being the firt attempt of using recurrence plot for analysing mechanical systems. angular engine speed. For
[email protected] l petrol engine. 145 . huerly fuel consumption. Marin Marinescu. Faculty of Mechatronics and Integrated Systems for Armament. It analysed signal dynamics in reconstructed phase-space and reveals visual information about distance correlation between two points of atrractor. Mamaia. Radu Vilau. the new solution has the following advantages: . currently the most commonly used motors for driving cargo winches with pile drivers and cranes are cage with three (3) speed obtained using three stator windings in star connection. Thus. construction complicated machine and not least the speed change gears. Working methods and results: Vector control is based on the dynamic model of induction machine. To eliminate these disadvantages it was proposed a solution that preserves the asynchronous machine as actuators. winding. Vector control restores one of the advantages of DC drive systems. Conclusions: From analysis results of the solutions used in commercial and military ships. the input quantities for the two controllers are errors that electromagnetic torque of the stator flux. Mamaia. asynchronous machines. namely separation speed and torque loops. economical solution. such as significant loss of power. No.the speed at position 0 is done through successive passes through stages 2 and 1 with a braking system with energy recovery). one for the couple. and so on). cranes. multi-speed asynchronous motors meet a widespread knowledge for AC electric drive machines working in the field of shipping (winches. The solution presented provides direct control of asynchronous machine by two independent control loops. and the transition from stage 0 to stage 3 and vice versa is done via positions (steps) intermediate speed 1 and 2 (transition from stage 3 . Constanta. Romania Paper ID: C-35 APPLICATIONS OF VECTOR CONTROL OF ASYNCHRONOUS MOTOR IN MARITIME TRANSPORT Marian Dordescu & Violeta Ciucur Maritime University of Constanta-Romania. . the other for flow. vector control.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Although it has some significant advantages. 104. based on the vector character of functional motor sizes. but that control movement. Romania Corresponding author: Marian Dordescu. control loop. which involves controlling the speed and / or torque or position control is done by controlling the torque and flux vector directly.the basic step is step 3.speed change continuously. the classical solution has some major drawbacks: large size. 146 . At these drives. Abstract: Objectives: Key words: winch.operation of the machine under braking energy recovery. not in steps. Department of Engineering Sciences in the Electrical Field.use of squirrel cage induction motors with one winding obviously simpler and cheaper compared to those with 2 or 3 windings.It was developed as a method based on closed-loop control of speed / torque when using dynamic response and precision motion control system are important. operating in parallel. 900663. Mircea cel Batran Street.com Currently. . dordescu@yahoo. To highlight the auxiliary time Petri model using transport stream divided into hierarchical levels and sections were analysed sequentially. Since Petri models are simplified to apply general computer analysis. Mamaia. Based on the hierarchical approach.com The paper presents the hierarchical model based on discrete event network for robotic systems. For modelling and control of complex robotic systems using extended Petri nets. Discrete event systems is a pragmatic instrument modelling industrial systems. 11-13. Faculty of Science and Engineering. ciortea31mihaela@yahoo. The hierarchical structure of the robotic system is implemented on computers analysed using specialised programming. Abstract: Key words: hierarchical model. 515900.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Blvd. using as parameters sets of finite products. 147 . modelling. The simulation of the proposed robotic system using timed Petri nets. Alba Iulia. Petri net. Applying product robotic times and transportation times obtained by measuring the spot. offers the possibility of viewing over time the robotic process. Implementation of hierarchical model discrete event systems. complex manufacturing systems control can be achieved using Petri nets. and the results are shown as representations easy to interpret. Such a system is structured. For modelling system we have used Petri nets because we have in our case discrete event system. Romania Corresponding author: Ciortea Elisabeta Mihaela. Petri network is analysed as a network of the highest conceptual level to the lowest level of local control. controlled and analysed in this paper by using Visual Object Net++ package that is relatively simple and easy to use. discrete event system. it is obtained graphical representations that show the average times of transport activity time. N. No. as a real-time operating system on a network of computers connected by a serial bus is possible if each computer is dedicated to local and Petri model of a subsystem global robotic system. complex system. Iorga. Romania Paper ID: C-36 ANALYSIS OF HIERARCHICAL MODEL BASED ON DISCRETE EVENT SYSTEMS Elisabeta Mihaela Ciortea “1 Decembrie 1918” University of Alba Iulia-Romania. The article presents: the methodology prescribed in the form of flowcharts. The test application is designed to simulate a simple industrial system. hundreds of cable descriptions. pull-wire switches. emergency stop buttons. etc. on the existing structure of hardware. It is possible to choose the manual control mode and fully automatic. Cyclic operation is controlled actuators in accordance with the adopted histogram. electro-pneumatic control units. 44-100 Gliwice. security components. the designer of the automation system is required to enable the handling of so-called safe I/O modules. piotr. Built control systems must often provide the required level of safety. Institute of Engineering Processes Automation and Integrated Manufacturing Systems. push buttons modules. project workflow for creating industrial network and base on it safety system. Extensive network topologies and simplicity and clear structure causing displacement of the classic wiring. actuators. safety light curtains. A perfect example is the comparison of classical topology and wiring distribution automation equipment in relation to a modern industrial network topology of the ASinterface.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Abstract: Key words: machinery safety. In addition. The individual steps of the scheme are described in the example shown. sensors. The authors present the process of creating a simple application. Konarskiego 18A.pl Capabilities of modern automation systems. Topology simplification is not the only benefits that we get through the selection of industrial networks. connectors. as-interface. The sample safety program. safety application. Poland Corresponding author: Piotr Michalski. histograms work electro pneumatic actuators and a histogram of the relationship between security components. Thus. This approach simplifies the maximum number of components in the way of industrial automation from sensor to PLC. safety monitors. Instead of: multi-core cables.michalski@polsl. in a development environment ASIMON has been written. the frequency converter and its controlled asynchronous 3-phase motor. terminals. 148 . to prepare for the process automation project development. This article describes the application possibilities of industrial network such as AS-interface in the implementation of safety at work. it is possible to implement a safety system based on industrial network. Faculty of Mechanical Engineering. With the adoption of the proposed method. the work of an asynchronous motor with different speeds and possible pressure drop in the pneumatic system. Once launched. which includes: the position limit switches. industrial networks. Mamaia. as well as a significant acceleration of the final run of the application. especially in the field of industrial networks applications. security restarting the system after the breach of security. the authors present the basic functionality of the implementation process. encouraging them to favor during the process of developing the automation project. automation systems integrator chooses increasingly clear industrial network bus. intermediate boxes. the paper presents the main algorithm for controlling the operation of the system. modules of analogue inputs and outputs. Romania Paper ID: C-37 IMPLEMENTATION OF THE SAFETY COMPONENTS BASE ON INDUSTRIAL NETWORKS Piotr Michalski & Mariusz Piotr Hetmańczyk Silesian University of Technology. 060042 Bucharest. Romania Corresponding author: Manuela-Roxana Dijmarescu. the only missing information being the part/product drawings. especially those related to industries. constructive characteristics and download a CAD model which can be used as a component of the product he wants to develop. design knowledge. The main elements defining the research program have been: creating a design knowledge database with information about products functionality and its relationship to the constructive structure. function. functional design.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Web Platform for Functional Design. Romania Paper ID: C-38 WEB PLATFORM FOR FUNCTIONAL DESIGN Manuela-Roxana Dijmarescu1 & Maria-Cristina Dijmarescu2 1 University Politehnica of Bucharest. Mamaia. web platform. The proposed web tool can provide any user. Romania 2 University Politehnica of Bucharest. The objective of this research is to develop a web platform to support students. a CAD library and a material library. The main page contains a set of functional classes considered for the mechanical products represented by buttons which will guide the user to the specific functions. such as news about research made in design area. Abstract: Key words: design. their definitions and the associated constructivefunctional units assigned. specific data and tools related to the design process. sub-functions. determine a much higher degree of pressure and demands for substantial innovation driven improvements. Materials Technology and Welding. denotes a simple interface. For each constructive-functional unit the user can retrieve information about its functionality. The use of this tool can shorten the necessary time for designing because the functional-constructive units retrieved from here have an almost complete design. 060042 Bucharest. Thus. Manufacturing Engineering Department. 149 . teachers and engineers in the design activity by providing information about the functionality of products and the way it is related to their structure. The platform includes also other sections presenting general information related to its purpose. The evolution of design activity is strongly related to the evolution of education and research made in the design field. defining the platform structure. flexible and time sensitive solutions. Improving and optimizing the design activity by shortening its timeline and maintaining a high quality level for its output have become the main success factors. documentation on the state of art regarding web tools available for supporting design activity. 313 Splaiul Independentei.com Today‟s global competitive trends. the development of web tools which can contain knowledge about mechanical products functionality and structure may be an important achievement for the education and industry. 313 Splaiul Independentei. creating the platform interface and etablishing its relationships to the knowledge database. The web platform that has been created. manuela-d@live. even one without background in design theory. information about the functionality of products and the way it is related to the product structure. testing the platform functionality. With the designed resistance container model. an extrusion process involving a newly designed Resistance Container for extrusion of A16061 alloy has been modeled by the help of finite element (FE) method and compared with conventional extrusion dies. Erzurum.ro Capture of carbon dioxide from various industrial processes is usual. Risks implied by the transport of carbon dioxide impose certain operation conditions as well as environment protection measures. Paper ID: C-40 TEMPERATURE – CONTROLLED NEW DIE MODELLING IN ALUMINUM (6061) EXTRUSION AND ITS COMPARISON WITH CONVENTIONAL DIES BY USE OF FEM ANALYSIS Sinan Sezek Ataturk University Askale Vocational Collage. Mamaia. Abstract: Key words: resistance container. triple point.com In conventional extrusion processes. teodorpopa@ceronav. Constanta. Mamaia. risk. Blvd. Romania 2 Ovidius University. tank pressure.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Elektrical and Energy Department. sinansezek@hotmail. 900663. Faculty of Mechanical. Temperature reduction that occurred at a rate of 50% in the case of conventional extrusion processes has occurred at around 10% in our model thereby resulting in minimized values of associated pressure and stress. Romania Corresponding author: Teodor Popa. Industrial and Maritime Engineering. This is why transfer of carbon dioxide becomes necessary and it is carried out in special conditions. In our study. Al6061. aluminium extrusion. Faculty of Navigation and Naval Transport. Abstract: Key words: Carbon dioxide. billet temperature was raised to extrusion temperature (550°C) in 30 s and the process was conducted at this temperature. tank temperature. Constanta. Quantity of carbon dioxide as well as storage capacity of the tank are to be considered as well. 104 Mircea cel Batran Street. hot extrusion. inability to keep especially the billet at the intended heat treatment temperature leads to waste of material and energy as well as dimensional linearity problems. Romania Paper ID: C-39 EFFECTS OF CARBON DIOXIDE ON STARAGE TANKS’ STRUCTURE Ovidiu Sorin Cupsa1 & Teodor Popa2 1 Constanta Maritime University. Carbon dioxide can be stored in tanks of different sizes but there are certain limitations and requirements. Turkey Corresponding author: Sinan Sezek. 124. 900527. No. Both temperature and pressure are important during transfer. 150 . Carbon dioxide certainly does have some influences on the tank structure and material it is made of. Aiming at getting even more parameters during the tests. of Military Automotive and Transportation. George Cosbuc nr. the paper also presents some experimental results to consolidate the theory. Therefore. Meanwhile. angular speed transducers were mounted on the propeller shafts of the vehicle. Bucharest 050141. Studying the uniformity of the wheels‟ skidding and slipping is quite useful since the results either could validate and improve the known theory in this respect or could lead to new mathematical models to simulating the behavior of the wheels for certain working modes. the road surface. Dept. Hence. skidding. Marian Truţă. the second part of the paper presents the conditions the tests have been developed under. the tests were performed at different tire radii of the front wheels vs. the measuring points and so on. Such a determination could have a positive impact by optimizing the vehicle exploitation or even its modernization. Besides the theoretical notions with respect to the relative motion of the wheel vs. Romania Corresponding author: Marian Truţă. slipping. When speaking about uniformity of the wheels‟ slipping one should understand the diminishing process of one axle‟s skid while the wheels of the other axle increase their slip. The vehicle longitudinal transmission was locked so the wheels‟ slip or skid occurs. Dănuţ Grosu & Valentin Vînturiş Military Technical Academy. these differences were of 0. sector 5. Abstract: Key words: vehicle. That was possible via a lockable inter-axle differential (which is a component of the vehicle‟s driveline). 39-49. transmission. Faculty of Mechatronics and Integrated Systems for Armament. hence increasing the general drag of the towing vehicle. Marin Marinescu. 30 and 60 mm. To accurately determine the magnitude and the variation of the wheel‟s slip or skid. The results are graphically presented. a varying rolling resistance served as input. transducers. Romania Paper ID: C-41 ANALYZING THE UNIFORMITY OF AN AUTOMOBILE WHEELS’ DISTRIBUTION OF SLIPPING AND SKIDDING Alin-Marian Puncioiu. Towing a vehicle and progressively braking the towed vehicle simulated it. the real speed of the vehicle was also measured using a GPS device. Moreover.com This paper is an integrated study performed over a 4x4 vehicle‟s transmission and propulsion system. the used testing hardware. the rear ones. to enhance the relative motion of the wheel against the road. Bd. under certain working circumstances. Mamaia.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Consequently. the towing force also varied. truta_marian@yahoo. 151 . The conclusion of the work are relevant since the theoretical approach is backed-up by the experimental research‟s results. It mainly aims at analyzing the uniformity of the distribution of the vehicle‟s wheels‟ slipping and skidding at the front and rear axles‟ level. Craiova.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20.Static and dynamic tests in accredited laboratories. . Department of Railway Vehicles. 200609. 40. experimental modal analysis. Gabriel Popa2. laboratory static tests. though the fatigue tests can be replaced by other methods of demonstrating the required fatigue life. Romania Politehnica University of Bucharest. Mamaia. prior to sending the bogie to tests in international accredited laboratories in railway field. the nowaday regulations requires that the structural strength of the bogies to be validated at various static and dynamic stress configurations that may appear during the bogie lifetime. Ion Girnita1. sector 6. On the calibrated analytical model it is evaluated the stress and deformation response to combined static and dynamic forces given according the the above normatives. and the need to validate the FEA model through data obtained by EMA. similarities and differences between the two types of analysis.3D design using a CAD dedicated program as ProEngineer. METHODS Ion Manea1. . . Splaiul Independentei No. track tests.Experimental modal analysis using dedicated hardware and software. For a new design of bogie destined for a new type of
[email protected] Bogies are complex equipments with vital role in operating of railway vehicles. finite element analysis. It is presented an application of combined analysis achieved on the new design of LEMA bogie. Romania Corresponding author: Ion Manea. RO-060042. Abstract: Key words: bogie. The Softronic procedure to making the LEMA bogie cover the following steps: . Faculty of Transports. Calea Severinului. laboratory fatigue tests. Gabriel Prenta1 & George Costache1 1 2 Softronic LTD. Romania Paper ID: C-42 DESIGN AND STRUCTURAL VERIFICATION OF LOCOMOTIVE BOGIES USING COMBINED.Calibration of analytical model through correlation with experimental modal model. Dolj. ion. Structural strength validation procedures of bogie that running in European space is regulated by standards EN 13749/20011 and EN 15827/2011 which regulates that the validation program shall be established on the basis of: analysis. Taking into account the bogie importance in the rolling stock security as the long operating lifetime. 313. The design and validation procedure takes into account connection with a program of structural validation by tests in a laboratory with international accreditation. no. Bucuresti. . . all four validation stages shall be used. based on the calibrated and optimized analytical model. ANALYTICAL AND EXPERIMENTAL. such as Pulse platforma. followed by analytical model optimization. The article dealt with procedure followed by Softronic Craiova for design and structural assessment of new bogies designed for electric locomotive with asynchronous motors LEMA 5100kW. having the role of carbody carrying and ensuring the traction and braking forces. 152 .Analytical assessment of the bogie response to the regulated static and dynamic stress.Structural analysis using a dedicated finite element program as Ansys.On track tests. Analytical model calibration is done through correlation analysis between the analytical and experimental modal shapes and eigenfrequencies. . The paper presents the theoretical background of finite element analysis (FEA) and experimental modal analysis (EMA). Arboform behaves like any petrochemical plastic material which means it can be heated and molded/ injected into a broad range of complex moldings using standard injection equipment. 700050. Abstract: Acknowledgements: This work was supported by the strategic grant POSDRU/159/1. The research study made until now prov/ demonstrates that the optimized process parameters could effectively reduce the warpage value of the products. a back propagation (BP) neural network model is developed to map the complex nonlinear relationship between process parameters and mechanical performance of the product. Blvd. BP neural network. injection time. Mangeron.The used material is a high-quality thermoplastic engineering material for applications that demand high technological standards. An integrated finite element analysis. An efficient optimization method by combining artificial neural network and plastic swarm optimization (PSO) algorithm method is used. screw displacement.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. the warpage induced residual stress (calculating by using finite element program ANSYS) during assembly and mechanical performance of serviced product is firstly proposed.The BP neural network architecture used in this study contain three parts: one input layer which has 6 neurons related to melting temperature. The particle swarm optimization algorithm is interfaced with this predictive model to optimize process parameters and thereby significantly improve the mechanical performance. An important influence on the mechanical performance of injection molds has the warpage induced during injection molding process. screw displacement. Romania 2 Nova de Lisboa University. impact. co-financed by the European Social Fund within the Sectorial Operational Program Human Resources Development 2007 – 2013.5/S/133652. Therefore optimization of the injection molding process parameters to improve mechanical performance of product under impact loading becomes the goal of this paper/ study. Lisbon.e. Arboform is the "liquid wood" that replace the ordinary plastics in all activity area in the near future. It combines the positive properties of natural wood with the processing capabilities of thermoplastic materials.. Optimum values of process parameters are determined to minimize the maximum von Misses stress within the Arboform cover phone part against impact. i. unavoidable quality problems appears. Arboform product. No. Antonio Gabriel Santos2 & Dumitru Nedelcu1 1 “Gheorghe Asachi” Technical University of Iasi. A study regarding cover phone part made from Arboform is presented. tow hidden layers with 20 neurons for each one.com Since the injection molding is the most widely used process in manufacturing polymer products. 59A. injection pressure and matrix temperature are considered as design and process parameters. Department of Machine Manufacturing Technology. Melting temperature. Romania Paper ID: C-43 OPTIMIZATION OF THE INJECTION MOLDING PROCESS PARAMETERS USING THE ARTIFICIAL NEURAL NETWORK AND PLASTIC SWARM ALGORITHM METHOD Simona Plăvănescu (Mazurchevici)1. injection pressure and matrix temperature. of the injection molding process. using MoldFlow package. The case study demonstrates that the proposed optimization method can adjust the process parameters accurately and effectively to satisfy the demand of real manufacture. injection time. and one output having 1 neuron representing the mechanical response of impacted Arboform case. simona0nikoleta@yahoo. Mamaia. the maximum von Misses stress. warpage. Iasi. 153 . cooling time. Key words: PSO algorithm. Then. Portugal Corresponding author: Simona Plăvănescu (Mazurchevici). cooling time. Based on the theoretical results. a practical implementation using MATLAB of an algorithm which aims to solve the problem is presented.The research has revealed the behavior of liquid wood samples to different tests: mechanical. tensile. Romania Corresponding author: Viorel Cohal.This paper presents the results of modeling by finite element method (FEM) of the behavior of liquid wood pieces subjected to tensile and bending. Department of Machine Manufacturing Technology. Mangeron. Abstract: Keywords: liquid wood. Department of Management. No. Blvd. bending. the research was focused on the technology of manufacturing by injection of the liquid wood parts. 700050. Also. Paper ID: C-45 SHAPE AND POSITION RECOGNITION OF AN OBJECT USING MATLAB Viorel Cohal “Gheorghe Asachi” Technical University of Iasi. Blvd. The theoretical research revealed differences of less than 11% compared to experimental research. Department of Machine Manufacturing Technology. No. Iasi. Timișoara. Iasi. etc. Abstract: 154 . thermal. Blvd.The pieces were modeled in SolidWorks application and the simulation was carried out using the Ansys software package. cohal@tcm. The outputs of the algorithm are brought into a suitable shape to be processed by an industrial robot which has to take each component and place them in different areas according to their type. The main problem that occurs is selecting and movingthese components in different places according to their type. MEF. 59A. 300222. România The usage of liquid wood to manufacture parts became an opportunity mainly due to environmental benefits. mechanical properties. Mangeron. 700050. 59A.ro It is considered the case of a conveyor on which are placed in a random order two types of same-sized components (cylinders and square cuboids) obtained after a manufacturing process. Mihai Viteazul 1.tuiasi.The mechanical properties of liquid wood used for modeling was taken from the different research. Romania 2 Politehnica University Timișoara.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Romania Paper ID: C-44 MODELING THE BEHAVIOR OF LIQUID WOODEN PARTS SUBJECTED TO MECHANICAL STRESS Constantin Cărăușu1 & George Belgiu2 1 “Gheorghe Asachi” Technical University of Iasi.The results can be used to design liquid wood parts with different shapes. The paper presents the methods of selecting the components based ondifferent techniques of image acquisition and interpretation. Mamaia. Basic general diagram shows (fig. A summary of the method is to create a QFD diagram often called the house of quality. availability. Romania Paper ID: C-46 OPTIMIZING PARAMETERS OF A TECHNICAL SYSTEM USING QUALITY FUNCTION DEPLOYMENT METHOD Magdalena Bączkowicz & Aleksander Gwiazda Silesian University of Technology. Most common requirements from customer point of view are: effective and practical use. materials characterization. ergonomic parameters. temperature.). easy operating. The most important ones are called critical technical requirements and without them the final product cannot be completed. type of material. In the article customers are represented by marketing department and designers by engineering department. Quality Function Deployment diagram The first step in the proposed method would be to select main groups of design parameters and define clients. Poland Corresponding author: Magdalena Bączkowicz. assigns weights and evaluate their relationships. The engineering department will have measurable requirements such as: dimensions. cross-sectional shapes. physical and chemical properties.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Faculty of Mechanical Engineering. QDF is a method first used by Toyota which helped to reduce costs of introducing a new car into the market by 60% and shortening product development time by 1/3. The customer is understood not only as a person buying final product but also as a designer.pl Nowadays the problem of optimizing parameters of the technical systems is a common issue for many companies. Konarskiego 18A. Critical requirements are the most difficult to implement. environmental.baczkowicz@polsl. physical proprieties (such as weight. gravity. Final product has to fulfill customer requirements which are becoming more complicated to translate into measurable technical requirements. Mamaia. appearance. Abstract: Figure 1. cross-sectional dimensions and others depending on the type of the product. magdalena. reliability. Institute of Engineering Processes Automation and Integrated Manufacturing Systems. 155 . Quality Function Deployment (QFD) can help with that problem by evaluating complete set of assumptions to determine the proper design parameters.1) customer requirements and answers how those needs are translated into design requirements. This method allows to increase customer satisfaction and improve the quality of every final product. It also gives a view on how customers and design requirements correspond with each other. Each department have different needs and the task of QFD is to combine both and chose their appropriate measured values. design process. assembly features. 44-100 Gliwice. Key words: quality function deployment. etc. power and energy consumption. USA 2003. set-up and adjustment). M. Manufacturers try to establish close cooperation with a client and to produce products of a high quality and reasonable prices in accordance with changing customer preferences. reduced yield). Effect of the intensity of arrivals of production tasks. Companies add overtime for existing workers or increase a number of production cells to meet the capacity constraints. Faculty of Applied Mathematics. enterprise dynamics. Poland Corresponding author: Iwona Paprocka. computer simulation. you will easily notice wastes" companies aim to achieve a production without downtime in their cells or production lines [1]. 44-100 Gliwice. Konarskiego 18A. Successive working (failure-free) times. In the paper.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Production tasks arrive according to an exponential process and are served with normally disturbed processing time. optimisation.e. repair times and defect-free production have exponential distributions. Kaszubska 23. anything that does not add a value to a product [1]. Abstract: Reference: 1. Mamaia. Institute of Mathematics. 44-100 Gliwice. overall equipment effectiveness. 156 . Brookline. Overall Equipment Effectiveness (OEE) is proposed to measure continuous improvement initiatives. impact of the failure-free. reduced speed) and product quality (defects and reworks. Poland 2 Silesian University of Technology. Massachusetts. Defective products can be recirculated and back to the production line according to a Bernoulli distributions. Wojciech M. Romania Paper ID: C-47 ESTIMATION OF OVERALL EQUIPMENT EFFECTIVENESS USING SIMULATION PROGRAMME Iwona Paprocka1. Manufacturers aim to eliminate wastes. increased and decreased failure-free time of a bottle neck. performance efficiency (idling and minor stoppage. To model the production system the simulation programm – Enterprise Dynamics (ED) is applied.paprocka@polsl. J. Production in manufacturing cells is realized in a tact time to overcome overproduction. Faculty of Mechanical Engineering. OEE is used to maximize performance of existing capacity. Kempa2. OEE is proposed to reduce problems with availability (breakdown or equipment failure. i.pl According to the words of Dave Logozzo: "If you're sensitive to the flow. The objective is to evaluate effectiveness of the production system using OEE before and after introducing improvement initiatives. Krzystof Kalinowski1 & Cezary Grabowik1 1 Silesian University of Technology. Institute of Engineering Processes Automation and Integrated Manufacturing Systems. repair times and defect-free times on OEE are summed up running experiments in ED. Distributions describing mean interarrival time. effect of the speed of processing. The two methodologies are applied for reducing a cycle-time: six-sigma for value-added operations and lean for non value-added operations. Rother. A queuing system of the M/M/2/N type with cyclic failure-free and repair times and cyclic defective production is used as a model of a two-machine production system. defect-free time are fitted using Autofit function in ED. Value stream mapping to create value and eliminate muda. Optimisation is done for the following scenarios: increased and decreased tact time with decreasing and increasing standby time of service respectively. repair time. The lean enterprise institute. The production capacity is adjusted by decreasing or increasing the tact time up to the maximal utilisation of given resources. Key words: performance measurement. processing time. iwona. Shook: Learning to see. pl Time series pattern recognition is an interesting research field due to their many applications in making prediction and detection. Romania Paper ID: C-48 TIME SERIES PATTERN RECOGNITION WITH AN IMMUNE ALGORITHM Iwona Paprocka1. Mamaia. 1699-1710. Institute of Engineering Processes Automation and Integrated Manufacturing Systems. Abstract: References: 1. Kempa2. The bigger the affinity threshold is the more antibodies are stimulated by the pathogen – more antibodies recognize the pathogen. Immune algorithm is used to identify similarity of sequences describing frequency to the “healthy case” – sequence describing a frequency without a disturbance. In such a problem. 2. Physical review. In this paper. During simulations of the immune algorithm. Expert Systems with Applications 40 (2013). Szpiro: Forecasting chaotic time series with genetic algorithms. The relationship between each two test cases is calculated and neighbourhoods are identified. antibodies correspond to damage cases. Tseng. Rui Neves. An affinity threshold is an input parameter which controls membership to the neighbourhood. 3. Canelas et al. the influence of stimulation and suppression parameters over the ability of time series patterns recognition is examined. Hsieh-Hui Yu. immune algorithm. for example: Chen et al. 44-100 Gliwice. 157 . Vincent S. Key words: time series. 3. The degree of similarity between sequences of damage-sensitive features is evaluated using pairwise modified Hamming distance. Konarskiego 18A. Genetic algorithms (GA) are often used to time series pattern recognition problems. Poland 2 Silesian University of Technology. a pathogen codes a sequence describing a damage with a noise. damage-sensitive features. The algorithm is tested with clean as well as with noisy chaotic data. volume 55. Faculty of Mechanical Engineering. Poland Corresponding author: Iwona Paprocka. A clone is deleted from the neighbourhood. 44-100 Gliwice.Antonio Canelas. [1] elaborated GA for the problem of pattern recognition for firms‟ stock prices. if it is stimulated by a number of clones higher than or equal to a suppression parameter.Chun-Ho Chen.George G. [2] elaborated GA for matching a specified chart pattern to make a buy or sell decision.paprocka@polsl. In a suppression process similar clones are deleted to keep a high diversity of antibodies to recognize the pathogen. time series pattern recognition is applied for a damage evolution sequence represented by a frequency response change due to a damage coefficient occurrence. In each iteration a similarity between each pair of antibodies in the neighbourhood is calculated and the best matched time series are memorised. Wojciech M. Institute of Mathematics. The antibody with the shortedst distance to the pathogen is a solution to the problem of pattern recognition (the type of damage is recognized).ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. 1579-1590. pattern recognition. No. Faculty of Applied Mathematics. Kaszubska 23. Tzung Pei Hong: Time series pattern discovery by a PIP-based evolutionary approach. iwona. Soft Computing (2013) 17. By a number of iterations antibodies from a neighbourhood are cloned and mutated to better match to the pathogen. The objective of this paper is to present pattern recognition system which can discover dependencies between data entries in time series. George [3] proposed GA for series of sunspot data. Nuno Horta: A Sax-Ga approach to evolve investment strategies on financial markets based on pattern discovery techniques. noisy chaotic data. Cezary Grabowik1 & Krzystof Kalinowski1 1 Silesian University of Technology. Sequences belonging to a given neighbourhood should represent a given type of damage. In this paper the original software worked out in order to automate engineering tasks at the stage of a product geometrical shape design is presented. It is evaluated that nearly 80% of design activities have a routine nature. Romania Paper ID: C-49 AN AUTOMATION OF DESIGN AND MODELLING TASKS IN NX SIEMENS ENVIRONMENT WITH ORIGINAL SOFTWARE – GENERATOR MODULE Rafał Zbiciak. Institute of Engineering Processes Automation and Integrated Manufacturing Systems. In the Generator module the involute curve is drawn by 11 involute points which are located on and upper the base and the addendum circles therefore 3D gear wheels models are highly accurate. The software functionality allows designing and modelling of spur and helical involute gears. The Generator module is the main subject of interest of this paper whilst the Cost module is the subject of interest of the second paper presented within the conference. 44-100 Gliwice. Application of the Generator module makes the modelling process very rapid so that the gear wheel modelling time is reduced to several seconds. It comes from fact that usually in CAD systems involute curve is drawn by 3 points which responds to points located on the addendum circle. 158 . These design routine tasks are highly susceptible to automation. The original software consist of the two main modules it is the Generator module responsible for designing and modeling of gear wheels geometrical shapes and Cost module used for estimation of the relative manufacturing costs. Mamaia. Design automation is usually made with API tools which allow building original software responsible for adding different engineering activities. FEM. Konarskiego 18A. Moreover it is possible to estimate relative manufacturing costs.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. With the Generator module it is possible to design and model both standard and nonstandard gear wheels. Poland Corresponding author: Rafał Zbiciak. involute. the reference diameter of a gear and the base circle respectively. During the conducted research the analysis of differences between standard 3 points and 11 points involutes was made.NET technology and NX SNAP library. The results and conclusions drawn upon this analysis are shown in details. Faculty of Mechanical Engineering. gear wheel.pl Nowadays the design constructional process is almost exclusively aided with CAD/CAE/CAM systems. The main advantage of the model generated in such a way is its better representation of involute curve in comparison to those which are drawn in specialized standard CAD systems tools. Cezary Grabowik & Witold Janik Silesian University of Technology. rafal. CAD. Abstract: Key words: NX. The elaborated software works exclusively in NX Siemens CAD/CAM/CAE environment and was prepared in Microsoft Visual Studio with application of the .zbiciak@polsl. Marin Marinescu. they were the typical ones designed to determine . If the turbine isn‟t locked to the propellers during coasting process.the mass inertial moments of the transmission components using the “falling weight” principle.octavian@gmail. But there are several issues that could baffle this action. weren‟t available. old (out of date) products and so on. the vehicle that would be subjected to the following topic is a military tracked. we faced the problem of the reverse rotation of the torque converter that strongly influences the general drag of the vehicle‟s motion. automotive transmission with respect to the vehicle‟s coasting mode. Actually. In the attempt to assess its‟ coasting dynamic performances. Romania Paper ID: C-50 DRAG PHENOMENA WITHIN A TORQUE CONERTER DRIVEN AUTOMOTIVE TRANSMISSION Octavian Alexa. driven by its engine via a hydraulic torque converter. in this respect. The method is based on the experimental research our team has performed in the last several months. The best way to make the needed evaluation is to have a separate torque converter and test it on a test bench. Hence. As far as the test were concerned. missing (bankrupted) manufacturer.com When discussing a torque converter driven. sector 5. An even more challenging situation consists in dealing with a military special vehicle. classified information. drag phenomena within the converter‟s fluid occur and they have to be properly assessed when computing the coasting process dynamics. Abstract: Key words: hydrodynamic transmission. Bd. Constantin-Ovidiu Ilie & Valentin Vînturiş Military Technical Academy. Bucharest 050141. alexa. Romania Corresponding author: Octavian Alexa. The method can be successfully used for all type of hydrodynamic components of the transmission under the condition of developing the necessary experimental research.on experimental basis . Among them. George Cosbuc nr. this paper tries to provide a method to determine the transmission overall drag considering the torque converter as being its main contributor. Radu Vilau. we aimed at determining the parameter of interest of the flow. automotive engineers have to take into account the slip between the converter‟s propeller and turbine. one could find the lack of information from the manufacturer. 39-49. if the data provided by the manufacturer. 159 .ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. torque converter. Using highquality software and adjacent mathematics while assuming a certain sort of flow type within the torque converter. Faculty of Mechatronics and Integrated Systems for Armament. heavy vehicle (MBT) with a planetary driveline. Mamaia. hydrodynamic friction. of Military Automotive and Transportation. Dept. 8. Water-PCM. phase change material. To achieve this goal. ANSYS. Romania Paper ID: C-51 CAPTURING WASTED HEAT FROM AN AIR–CONDITIONING UNIT Mohammed H. and 4. Mamaia. profmohamedh@yahoo. the FWD systems have been found to increase the PCM temperature gain of about 15. Double tube (SFWD) system.com Abstract: In this work. Different profiles of fins attached to the (FWD) system have been investigated for increasing the thermal conductivity of the PCM. Keywords: waste heat recovery. Water-PCM. numerical simulations using (ANSYS Fluent14. focus is taken on developing a waste heat recovery system for capturing potential of exhaust heat from an air conditioner unit to be reused later.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. 160 . Transient 3-D. Golam University of Al-Mustansirya. Theeb & Ali S.0 software) have been developed to predict the thermal behavior for all types of FWD systems under investigation. Overall. Results show a significant performance improvement when using spiral and circular fins during charging process at vertical position. College of Engineering. However. Water-PCM. a Finned. Water-PCM. Double tube (LFWD) system. as well as. Water-PCM. Double tube (FWD) system has been developed and tested.2% for CFWD. An experimental test rig that attached to an air-conditioner unit has been built to include 32 tubes of the FWD systems for both vertical and horizontal layouts during charging and water discharging processes. longitudinal and without fins showed better performance in horizontal position. Double tube (CFWD) system. Double tube (WFWD) system. Department. Without Fins. Alhamdo.3% for LFWD system.3% for SFWD system. Spiral Finned. These include using Circular Finned. As compared to the WFWD system. This system has the ability to store heat in phase change material (PCM) and then release it to a discharge water system when required. Iraq Corresponding author: Mohammed H. Longitudinal Finned. Baghdad. air-conditioner. SFWD system in vertical position has been found to exhibit the most effective type due to the fastest PCM melting and solidification. Alhamdo. Maathe A. Mechanical Eng. which task is to ensure proper coarse grinding of the output. VR system. of rotary motion. For this purpose was used the VR (Virtual Reality) software. In the next stage of work the control program of a virtual controller was created using the ladder diagram (LD) language. In the first stage of the work was created interactive visualization of functioning of the 3D model of the tunnelling machine. which task is cyclic moving the tunnelling machine in the direction of a driven tunnel. Poland Corresponding author: Krzysztof Herbuś. in a simulation mode. The carried out work allowed the integration of the virtual model of the control system of the tunnelling machine with the virtual controller enabling the verification of its design and functioning. In the created interactive application have been established procedures for data downloading from an external application on the basis of dynamic data exchange (DDE). the drive system of rotary motion. Additionally. The purpose of integration is to verify the functioning of analysed object in accordance with the adopted control program. krzysztof. integration. Institute of Engineering Processes Automation and Integrated Manufacturing Systems.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Also was elaborated the procedure enabling turning on an off of the output grinding head mounted on the last segment of the manipulator. The object of the simulation work is the drive system of a tunnelling machine for trenchless work.pl Abstract: The paper presents the problem of integration the virtual 3D model of a control system with the virtual controller. In the analysed machine could be distinguished: the drive system of translatory motion. The first should be started the hydraulic motors of rotary motion which. In the developed application were created procedures responsible for downloading data from running. Faculty of Mechanical Engineering. the virtual controller and for transferring them to the interactive application in which is verified functioning of the analysed object. 44-100 Gliwice.herbus@polsl. which allows controlling actuators of each analysed drive system. The element integrating the virtual model of the tunnelling machine for trenchless work with the virtual controller is an application written in a high level language (Visual Basic). by the transmission system should start the boring ring. four hydraulic motors of rotary motion (the boring ring drive system). the tunnelling machine for trenchless work consists the sub-system including the drive of a manipulator. It is assumed that the control is based on a binary signal taking the values of 0 or 1 (true or false). in one cycle. and of manipulator. simulation. The whole machine is moved. Actuators in each control sub-systems are four hydraulic cylinders of linear motion (drive system of translator motion of the whole tunnelling machine). Romania Paper ID: C-52 INTEGRATION OF THE VIRTUAL 3D MODEL OF A CONTROL SYSTEM WITH THE VIRTUAL CONTROLLER Krzysztof Herbuś & Piotr Ociepka Silesian University of Technology. which task is to ensure the continuous operation of the boring ring. virtual model. Taking into consideration the scope of conducted researches concerning verification of functioning the 3D model of the tunnelling machine for trenchless work from all its elements it has been fully modelled the drive systems and power transmission ones. Konarskiego 18A. Key words: virtual controller. Then should be started the hydraulic cylinders of linear motion moving the whole tunnelling machine. five hydraulic cylinders of linear motion (the drive system of the manipulator) and one hydraulic motor of rotary motion (the output grinding head drive system). In the elaborated interactive application were created adequate procedures enabling to control the drive system of translatory motion. by the distance equal to the width of the tubing used to reinforce the bored part of the tunnel preventing the phenomenon of land sliding. 161 . Mamaia. At the same time should be started motors of the manipulator and of the output grinding head. The control program was developed on the basis of the given work cycle of the tunnelling machine. basing on acquired information obtained from stored mathematical model. sperical joint) between the created component of the "link” type. which consists of four multimedia projectors and four large screens. The use of integration made it possible to determine the safe operating space of a stationary hexapod taking into consideration the security of a person in the driving simulator designed for the disabled.: revolute joint. and rear screen allows to ride "over the shoulder" and control traffic by rear mirror mounted inside the cabin of the car. This is due to the fact that all control elements (gas pedal. The first step was to define the components of the 3D model in the form of "links".g. ball-andsocket joint. This phase of the work was done in the "Motion Simulation" module of the CAD/CAE/CAM Siemens NX system. Mamaia. Information from the virtual environment and from control elements of the modified car (gas pedal.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. The results relate to specific values of the jump of electric actuators depending on the position of the car on the platform. 162 . integration. The described system is connected to the control cabinet. krzysztof.herbus@polsl. Key words: hexapod.g. In the first stage of the work concerning the integration task the 3D model to simulate movements of a hexapod was elaborated. It should be noted that the method of driving the modified vehicle does not differ from that of driving a car moving in the real traffic. lights controls and speed indicator) are forwarded as inputs to the control cabinet. Modifications included the moving of mechanical systems. decision are made concerning the mode of "behave" of the Stewart platform. Three of them are connected to each other and allow realizing the projection of the driver's front and sides view. lights controls and speed indicator) from the point of view of the driver look and function identically as in an unmodified car. The next stage of work included implementing the mathematical model describing the functioning of a hexapod in the LabVIEW software. Poland Corresponding author: Krzysztof Herbuś. top plate.pl Abstract: The paper presents the problems related to the integration of a CAD/CAE system with the LabVIEW software. particular attention was paid to determining procedures for integrating the virtual 3D hexapod model with the results of calculations performed in the LabVIEW. which is responsible for the proper operation of the Stewart platform and for cooperation with a virtual environment in which the car avatar is moving. brake one. CAD/CAE system. which are not required for proper operation of a driving simulator (e. The purpose of the integration is to determine the workspace of a hexapod model basing on a mathematical model describing it motion. On the Stewart platform is mounted the fiat panda car that has been mechanically modified. toggle joint Phillips. Stationary hexapod (Stewart platform) is the main executive system of a driving simulator for people with lower limb disabilities. 44-100 Gliwice. The whole simulator completes the virtual world image projection system. Romania Paper ID: C-53 ANALYSIS OF THE HEXAPOD WORK SPACE USING INTEGRATION OF A CAD/CAE SYSTEM AND THE LABVIEW SOFTWARE Krzysztof Herbuś & Piotr Ociepka Silesian University of Technology. brake one. clutch one. working space.: transmission gearbox. In the model prepared for movement simulation were created links corresponding to such elements as: electric actuator. slider joint. Institute of Engineering Processes Automation and Integrated Manufacturing Systems. suspension). virtual model. Konarskiego 18A. Then were defined the constraints of the "joint" type (e. In this cabinet. bottom plate. clutch one. Individual links were defined according to the nature of the hexapod elements action. At this stage. Faculty of Mechanical Engineering. so that the computer simulation corresponds to the operation of a real Stewart platform. on which the piece of tested road surface is placed.pl The paper presents the conception of the device for tyre grip testing in the laboratory conditions. Among the key assumptions the minimization of the device dimensions and the relative ease of mobility and transportation – the ability to quick assemble and disassemble were also assumed. Faculty of Mechanical Engineering. This solution allows carrying large loads. 44-100 Gliwice. Lack of gears and rotating elements significantly reduces noise level. which enables rapid changes of the tested samples of the road surfaces. The additional measured value is the kinetic friction between the tire and road surface. friction. Working in confined spaces also requires compliance with standards for acceptable noise and emission of substances harmful to health. Poland Corresponding author: Grzegorz Ćwikła. Witold Janik. laboratory test station. the drive of the platform. Konarskiego 18A. Romania Paper ID: C-54 THE LABORATORY STATION FOR TYRES GRIP TESTING ON DIFFERENT SURFACES Krzysztof Kalinowski. the wheel mounting assembly and the axial force measuring system. the projected device should be allowed to mounting and testing of the widest possible range of rims sizes. with specified angle deflection from the wheel rolling direction. Speed sensor used here is based on a linear magnetic transducer. In the presented constructional solution the platform for samples is formed on the base of a rectangular steel frame. the roller conveyor.1% was applied. The developed device for tyre grip testing belongs to the group of machines.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Abstract: Key words: tyres grip testing.cwikla@polsl. Due to the large range of sizes of wheel rims. For a force measuring the digital load sensor TECSIS F12131-110 having 0-1kN range and accuracy of 0. Mamaia. The main purpose is to provide a device working in confined spaces. Cezary Grabowik. Institute of Engineering Processes Automation and Integrated Manufacturing Systems. socalled free wheel rolling. variable speed control (using flow control) and simulation of overloading. PN93/C94300/009 and PN88/C-94300/030. The main components of the projected station includes: the replaceable platform for mounting samples of a road surface. The platform is mounted on a roller conveyor that alows it to move along a fixed direction and carry the wheel load. 163 . force measurement. grzegorz. rolling resistance. The basic measured value is the axial force acting on the shaft on which the wheel is mounted. For driving the platform the hydraulic actuator was selected. In the construction of the device the existing standards in the field of tyre grip measuring were taken into account. among others PN-ISO 23671. This kind of sensors is characterized by high accuracy combined with high resistance to vibration. Grzegorz Ćwikła & Michał Skowera Silesian University of Technology. During the stage of synthesis of technical and organisational solutions of MIAS for CWWTP.cwikla@polsl. OEE. specifics of technological processes. Adrian Kampa & Grzegorz Gołda Silesian University of Technology. data acquisition. materials used in the technological processes. as well as fundamentals of the MIAS (Manufacturing Information Acquisition System) methodology itself was described in prior publications. data pre-processing and communication interfaces had been presented. and level of communication. the solutions covering MIAS architecture and connections with other IT systems. The MIAS methodology is an example of multi-stage. necessary for fulfilling law requirements concerning compulsory information on the chemical composition of intake wastewater and outtake water cleaned during mechanical and biological treatment processes. Mamaia. thus only main rules will be reminded here. The stage of analysis covered i. sensors. 44-100 Gliwice. state of crew. assignments of crew members. Detailed issues of data acquisition and data sources. mostly without involvement of workers. grzegorz. level of automation and manual operations. data pre-processing procedures. flow of material and semi-finished products. Romania Paper ID: C-55 APPLICATION OF THE MIAS METHODOLOGY IN DESIGN OF THE DATA ACQISITION SYSTEM FOR WASTEWATER TREATMENT PLANT Grzegorz Ćwikła.: organisational structure of the company. because access to real-time information describing the state of production system (including completion of production orders. branch of industry. Faculty of Mechanical Engineering. Damian Krenczyk. Institute of Engineering Processes Automation and Integrated Manufacturing Systems. synthesis of technical and organisational solutions. automatic identification systems. data sources. Availability of data in any given company strongly depends on specific of its production processes (discrete. The main reason to create information acquisition system for CWWTP was to provide better information of usage of equipment and assignments of crew members for better management of production system. and necessary communication interfaces had been proposed. 164 . machines and equipment. Overview of both analysis and synthesis of organisational solutions. Abstract: Key words: manufacturing information acquisition system (MIAS). and evaluation of proposed solutions. This paper presents example of application of the MIAS methodology in the company leading continuous. automated production processes – Central Wastewater Treatment Plant (CWWTP) in Gliwice. data sources in production system that are currently available and newly created. Poland. structure of control systems. batch.) is the basis for decision making in every company. where process of development of data acquisition system. Poland Corresponding author: Grzegorz Ćwikła. level of data sources.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. In modern company acquisition of data on the state of the production system should be carried-on automatically. etc. There are 4 proposed levels of analysis: level of company as a system. continuous).e. level of data pre-processing. multi-level methodology. is divided into 3 main stages: analysis of various aspects of the company in which MIAS is applied. SCADA. etc.pl Acquisition of data on the state of production system is crucial in the management of company. understood as a set of cooperating hardware and software solutions. Konarskiego 18A. IT systems used in the company. machinery and equipment. as well as to create complete database containing data on operation of wastewater treatment plant. OEE. 060042. Will be detailed the steps that must be followed to simulate the assembly process. Optimization of the assembly line is a multi-criteria decision-making problem involving theoretical and experimental research efforts. dobre. Optimization criteria can be: technological. Before the implementation of the proposed solutions will be achieved a simulation of the entire assembly lines.catalina@yahoo. productivity.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. material flow. In this article we propose to carry out a study on the optimization of an assembly line for refrigerators based on results obtained from the simulations. Assembly line optimization has in order to increase the productivity with the aim to satisfy the market demand without compromising quality and price. On the assembly line the proposed solutions will be implemented from downstream to upstream to avoid creating bottlenecks. The virtual model responds to the information entered by the operator as input parameters. assembly line. economic. The studied process simulation will indicate flow concentrators that must be eliminated. 313 Splaiul Independentei Street. The goal is to increase production capacity by streamlining the flow of the assembly line.fr ) Modeling and simulation are methods for solving problems in the analysis of complex systems. Bucuresti. the next step is to translate the information achieved in a simulation model. Testing requirements can be analyzed only after building a virtual model for the real system studied. For modeling and simulation of assembly process was used Plant Simulation software. virtual model. Romania (10 pt) ¶ (11 pt) Corresponding author: Enache Ioana-Catalina. analysis and prognosis the performance of a real system or a new implemented system. After simulation the results obtained after optimization will be compare with the initial ones. Mamaia. Assembly line optimization will be achieved in two stages and for each stagewill be achieved a process simulation to see the system behaviour. conceptual and ergonomic. Faculty of Aerospace Engineering. We define the simulation modeling as a process that mimics the actual system response to events that occur over time. you get a wrong model. and studied system is unsustainable. Romania Paper ID: C-56 MATERIAL FLOW SIMULATION FAR AN ASSEMBLY LINE 11 pt) Ioana Catalina Enache & Ana-Maria Avramescu ¶ (11 pt) Politehnica University of Bucharest. 165 . Will be identified problem areas and will be proposed solutions to optimize the assembly line. All of the methods and techniques applied in this assembly line are designed to increase efficiency activities. It is a technique often used in industrial engineering for viewing. Once the system was clearly defined. Abstract: Key words: simulation. If they are incorrectly distributed. production planning. Poland 2 Silesian University of Technology. as well as they are entered directly by the decision-makers / operators from different locations in the organizational structure of the company. CAPP or other dedicated systems used in an enterprise. Keywords: resheduliung.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. reducing the response time and improving the quality of generated solutions. determination of the resheduling method. ERP. and play an important role in the production preparation and control. When rescheduling. The main aim is to discuss the PSS functionality for maximizing automatisation of the rescheduling process. krzysztof. e. Mamaia. Faculty of Mechanical Engineering. Institute of Engineering Processes Automation and Integrated Manufacturing Systems. technology and production system state (e. Romania Paper ID: C-57 THE ROLE OF THE PRODUCTION SCHEDULING SYSTEM IN RESCHEDULING Krzysztof Kalinowski1. PLM. Faculty of Applied Mathematics. 44-100 Gliwice. All necessary data for scheduling and rescheduling are usually collected in other systems both from organizational and technical production preparation. An additional problem arises in data acquisition. 166 . creation a set of operations to reschedule and a set of evaluation criteria ect. where all these operations are carried out by an autonomous system and those in which scheduling is performed only upon request from the outside. Different approaches to rescheduling were characterized. Among the most important decision-making problems in resheduling the following can be mentioned: detection of disturbances and identification of their parameters. resources availability) they prepare and/or update a detailed plan of production flow – a schedule. due to the limited amount of time to make a decision this interaction is particularly important. for the newly created scheduling data representing the current state of the production system. production scheduling system. Depending on the particular implementation these data are obtained from several various classes of systems. the decision about the schedule correction – immediate. PSSs operate in the meeting of tactical and operational level of planning and control. Poland Corresponding author: Krzysztof Kalinowski. postponed or not required. Data acquired in this way are often incomplete and inconsistent. MES.. making proper changes in the scheduling model. 23 Kaszubska Str. integrated
[email protected]. scheduling. Konarskiego 18A. On the basis of information about orders. Therefor the existing rescheduling software works according to interactive method – rather support but does not replace the human decision maker in tasks planning. including those solutions. Cezary Grabowik1. Institute of Mathematics. Wojciech Kempa2 & Iwona Paprocka1 1 Silesian University of Technology. the proper exchange of data between systems or in the identification of new data sources and their processing.pl Abstract: The paper presents the rescheduling problem in the context of cooperation between production scheduling system (PSS) and other units in an integrated manufacturing environment – decision makers and software systems.g. But whether in the scheduling system all these decisions should be implemented or only some of them remain an open question. 44-100 Gliwice. Also simulation of vibration excited by traffic was done in order to analyse the dynamical response of considered elements. Considered elements were modelled using Siemens NX 8.placzek@polsl. As surveillance systems are considered innovative methods of controlling the road infrastructure. Abstract: Key words: modelling. Presented paper is an introduction to this project that gives the basic information about analysed systems and their behaviour under excitation by passing vehicles.pl Paper presents computer-aided modelling of the road infrastructure elements – different types of protective barriers. In the work two basic types of protective barriers. 167 . as well as analysis of the received signals to their use in modern traffic surveillance systems. Mamaia. smart materials. 44-100 Gliwice. Also different distance between brackets used for mounting barriers was verified in order to verify its influence on the system dynamical response. A series of analysis was done taking into account different parameters of the system excitation that represent acting of different kind of passing vehicles (cars.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Romania Paper ID: C-58 COMPUTER-AIDED MODELLING AND ANALYSIS OF ROAD INFRASTRUCTURE ELEMENTS EXCITED BY TRAFFIC Marek Płaczek Silesian University of Technology. The purpose of the whole project is to verify the possibility to apply piezoelectric transducers on analysed elements and use them as sensors that generate signals used in traffic surveillance systems. information signs or control of vehicular traffic. Results were considered in order to find the most flexible elements of the structure and to verify its deflections. It is very important to verify if such kind of systems can be controlled by the analysis of the dynamic response of road infrastructure. Institute of Engineering Processes Automation and Integrated Manufacturing Systems. road infrastructure. are analysed. The modal analysis of different system‟s configurations that are usually used in road infrastructure was carried out. In order to measure vibrations of the considered system Macro Fiber Composite (MFC) piezoelectric foils or piezoelectric foils made of Polyvinylidene Fluoride (PVDF) will be proposed. Natural frequencies and modes of vibrations were calculated. Konarskiego 18A. traffic lights. such as lighting. trucks) and different distance of the passing vehicle from the protective barrier. analysis.5 system and analysed using Finite Element Method. marked A and B. marek. Poland Corresponding author: Marek Płaczek. Execution of the work aims at the acquisition of new knowledge of the phenomena occurring during the propagation of vibration energy generated by passing vehicles on the infrastructure and the possibility of measuring the dynamic response of these elements. sensors. Faculty of Mechanical Engineering. This knowledge is very important to develop the proposed system. piezoelectric transducers. Measured data were acquired using the real time computer CopactRIO produced by National Instruments and analysed using LabVIEW software. testing. This is why nowadays a lot of research works are concerned with energy harvesting.placzek@polsl. Mamaia. as well as. marek. available as elongators and contractors. Abstract: Work Key words: energy harvesting. The development of piezoelectric transducers allows new applications of such kind of materials and improves operation of existing devices. where other ways of supplying is difficult or impossible. Influence of the system‟s fixing (boundary conditions) was also considered. sensors. For example it is impossible to use wires or replace discharged batteries. In carried out test Macro Fiber Composite (MFC) piezoelectric transducers were used. Poland Corresponding author: Marek Płaczek. electrodes and polyimide film. Recovering of electrical energy from mechanical vibrations is possible by using the direct piezoelectric effect – generation of the electric voltage while the transducer is mechanically deformed. Institute of Engineering Processes Automation and Integrated Manufacturing Systems. environmentally sealed packages. the influence of the mechanical subsystem fixing. A series of tests with different types of MFC transducers (types P2 and P3) with different field of active area were carried out. The considered vibrating system is a composite plate with piezoelectric transducers bonded to its surface. Vibrations of the system are excited by means of an actuator with possibility to change the excitation amplitude and frequency. One of those applications is energy harvesting – recovering of the electrical energy from vibrations. Faculty of Mechanical Engineering. MFC transducer is consists of rectangular piezo ceramic rods sandwiched between layers of adhesive. macro fiber Composite. smart materials. What is more such kind of energy production allows design systems that work in difficult conditions. 44-100 Gliwice. piezoelectric transducers.pl presents results of influence analysis of the vibrating mechanical subsystem‟s excitation parameters on the effectiveness of the system designed for energy harvesting. Systems designed for such kind of operations can not generate a huge power but their advantage is that the energy is recovered from phenomenons that are unavoidable and normally it would be lost. Konarskiego 18A. In this work results of measurements carried out on laboratory stand are presented. 168 . Romania Paper ID: C-59 INFLUENCE OF THE EXCITATION PARAMETERS OF THE MECHANICAL SUBSYSTEM ON EFFECTIVENESS OF ENERGY HARVESTING SYSTEM Andrzej Buchacz. Wacław Banaś & Marek Płaczek Silesian University of Technology. damage tolerance. Obtained results were juxtaposed and analysed. Main benefits of the MFC given by the manufacturer are: increased strain actuator efficiency. This work was a first step of the research project that aim is an implementation of the energy harvesting system on real objects and use of the generated electrical energy to supply systems with low energy consumption. Also the influence of excitation parameters on the system‟s effectiveness was verified.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Bucharest. images and video scenes. 3D. Splaiul Independentei st. This article aims to exhibit a game design from these days. These effects are essential for transmitting the emotional state of the scene. 169 . Increasingly more often.. objects. These special effects are somehow hard to differentiate from the real elements like those on the screen. for multimedia presentations of big global corporations. the best selling game of the year 2010 was Call of Duty: Modern Warfare 2. Out of the conducted study. design. inovation and human vision in order to attain full achievement. a very popular subject among game developers. special effects.com In present. avr_ana@yahoo. No. With the increasingly accesible 3D field that has more and more areas of application. sector 6. like all these elements represent a whole that works in perfect harmony. the majority of industries is using 3D sequences (three dimensional). Romania Corresponding author: Ana-Maria Avramescu. the 3D technology goes easily from arhitecture to product designing. animation. Romania. is considered a prerequisite but the cinematography is the first art that had to wait for the correct intersection of technological development. 3D represented graphics. Mamaia. Creating the special effects is a work of finesse in order to achieve high quality scenes. with the help of computer. Technology. more precisely. This way. Special effects are decisively contributing in the creation of a realistic three-dimensional scene. Special effects can be used to get the attention of the onlooker on an object from a scene. the article aims for the presented scene to be similar with many locations from this type of games. nowadays we have different and multifarious game models.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. 313. Abstract: Key words: inovation. The key for attaining real visual effects is to successfully combine various distinct elements: characters. Considering the advanced technology and futuristic vision of designers. Real like 3D animations are used as means of learning. Department of Engineering Graphics and Industrial Design. as part of the movie art. we can create special effects that look so real that we almost don‟t perceive them as being different. commercials and special effects from movies are all designed in 3D. Romania Paper ID: C-60 SPECIAL EFFECTS USED IN CREATING 3D ANIMATED SCENES PART I Ana-Maria Avramescu “Politehnica” University of Bucharest. a place from the Middle East. for special effects and even for virtual actors in movies. If we don‟t know how to make these photo-realistic works.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. avr_ana@yahoo. After a critic art stage. how to apply textures and how to parent the building and objects components. on strong scientific basis. Moreover. a model that gives the possibility of a better understanding of the techniques necessary to create a realistic animation. we present how to create a 3D animated scene. we are able now to present in this paper the architecture of a design method that proposes to create an animation. lights. More precisely. texturing. textures and a realistic sense of 3 Dimension. rendering and lighting. Department of Engineering Graphics and Industrial Design.com Abstract: Creating realist objects in a 3D scene is not an easy work. Mamaia. layes styles. Romania Corresponding author: Ana-Maria Avramescu. this work is based on teaching some simple ways of using the Layer Styles to create some great shadows. by using the techniques and a good reference photo we can create an amazing amount of detail and realism. Splaiul Independentei st. sector 6. this article shows how to create photo realistic 3d models from a digital image. in this paper. Bucharest. 313. This objective also includes proposing. Key words: realistic objects.. No. mainly using the Pen Tool and Blending Options. in this article there are some of these detailed methods from which we can learn the techniques necessary to make beautiful and realistic objects in a scene. Indeed. Romania Paper ID: C-61 CREATING PHOTO-REALISTIC WORKS IN A 3D SCENE USING LAYES STYLES TO CREATE AN ANIMATION Ana-Maria Avramescu & Ioana-Cătălina Enache “Politehnica” University of Bucharest. The present work involves also showing how some interesting ways of using the illuminating and rendering options can create a realistic effect in a scene. 170 . basic lighting and rendering. textures. We have to be very careful to make the creation very detailed. The aim is to create a conceptual and methodological tutorial to address this issue both scientifically and in practice. The present work proposes to present how to use Illustrator paths. Romania. For example. We also propose to use this proposition to recreate smaller details or 3D objects from a 2d image. Poland Corresponding author: Rafał Zbiciak. B with or without wheel hub. gear wheel. Taking into account above it is possible to draw a conclusion that the Cost module can play significant role in design constructional process by adding an engineer at the selection stage of alternative gear wheels design.zbiciak@polsl. These parameters are also processed in the Cost module.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Romania Paper ID: C-62 AN AUTOMATION OF DESIGN AND MODELING TASKS IN NX SIEMENS ENVIRONMENT WITH ORIGINAL SOFTWARE – COST MODULE Rafał Zbiciak. 171 . Estimated in this way the manufacturing relative cost gives an overview of design parameters influence on the final gear wheel manufacturing cost. The bigger index value the higher relative manufacturing cost is. Knowledge of parameters (i) to (v) is indispensable for proper modeling of 3D gear wheels models in CAD system environment. Taking into account above it seems to be advisable to make software tools which aid an engineer in the process of manufacturing cost estimation. CAD.00 range. rafal. which have the greatest influence on overall manufacturing cost. (v) gear face width. They have also deciding influence on product technical and economic value.pl The design constructional process is a creation activity which strives to fulfil. The Cost module is built with analytical procedures which are used for relative manufacturing cost estimation. (viii) accuracy class. were distinguished and defined: (i) a gear wheel teeth type it is straight or helicoidal. technical and technological advances. This relative manufacturing cost takes values from 0. During the research the following eight factors. Institute of Engineering Processes Automation and Integrated Manufacturing Systems. As in the case of the Generator module the Cost module was written in object programming language C# in Visual Studio environment. (iii) a gear tooth module. all demands and needs formulated by a user taking into account social. Abstract: Key words: NX.00 to 1. Konarskiego 18A. This verification has indicated that in most cases both group of results are similar. Mamaia. (vi) gear wheel material. (iv) teeth number. as well as it possible at the certain moment of time. (vii) heat treatment or thermochemical treatment. It should be remembered that real manufacturing cost can differ significantly according to available in a factory manufacturing techniques and stock of machine tools. Engineer knowledge and skills and their inborn abilities have the greatest influence on the final product quality and cost. The last three parameters it is (vi) to (viii) are exclusively used in the Cost module. realitve manufacturing cost. Faculty of Mechanical Engineering. CAPP. Verification whether the proposed algorithm of relative manufacturing costs estimation has been designed properly was made by comparison of the achieved from the algorithm results with those obtained from industry. (ii) a gear wheel design shape A. The estimation of manufacturing relative cost is based on indexes calculated for each particular parameter. Cezary Grabowik & Witold Janik Silesian University of Technology. 44-100 Gliwice. CSG rarely. IFR. Mamaia. Romania Paper ID: C-62 A SURVEY ON METHODS OF DESIGN FEATURES IDENTIFICATION Cezary Grabowik1. Automatic feature recognition consist in an autonomic searching of a product model represented with a specific design representation method in order to find those model features which might be potentially recognised as design features. Institute of Engineering Processes Automation and Integrated Manufacturing Systems. Currently there are lots of AFR methods. One of the most important tasks which are realized in the integration process of design and planning functions is translation meant as design data mapping into data which are important from process planning needs point of view it is manufacturing data. cezary. In the IFR method potential features are being recognised by a user. design feature. The searching algorithm should allow to carry on the whole recognition process without a user supervision. AFR. In this paper a survey on methods of features identification and recognition is presented especially in context of AFR and IFR methods. process planning or production scheduling.pl Currently design features are considered as one of the most attractive integration method of most fields of engineering activities such as a design modelling. Abstract: Key words: CAPP. Iwona Paprocka1 & Wojciech Kempa2 1 Silesian University of Technology. manufacturing feature. 44-100 Gliwice. A design geometrical shape translation process can be realised with application one of the following strategies: (i) designing with previously prepared design features library also known as DBF method it is design by feature. Konarskiego 23A Str. There are two basic approaches for design modelling in DBF method it is classic in which a part design is modelled from beginning to end with application design features previously stored in a design features data base and hybrid where part is partially created with standard predefined CAD system tools and the rest with suitable design features. surface roughness etc. 172 . Poland 2 Silesian University of Technology.grabowik@polsl. This process is most often realised by a user who points out those surfaces which seem to belong to a currently identified feature. Additionally a user is able to define non-geometrical information such as: overall dimensions.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. In case of the DBF method design geometrical shape is created with design features. These methods need the product model to be represented with B-Rep representation most often. 44–100. (iii) automatic design features recognition AFR. Gliwice. Poland Corresponding author: Cezary Grabowik. Konarskiego 18A. Faculty of Mechanical Engineering. Krzysztof Kalinowski1. It allows to unambiguously identify individual features in automatic or semi-automatic way directly in CAD system or in an external application to which the part model might be transferred. This approach needs the searching algorithm to be prepared.. In the IFR method system designer defines a set of features and sets a collection of recognition process parameters. The Faculty of Applied Mathematics. (ii) interactive design features recognition IFR. manufacturing features. DBF. etc. Institute of Mathematics. wireframe very rarely. That way it will be possible to compare the estimated EEOI value with the real one determined on board vessel considering the external factors. electronic charts. Therefore acting on the voyage parameters. to carry goods for different distances. marine fuel type and quantity of cargo. Romania 2 Project Masters Nigeria Ltd. Key words: energy efficiency. During the voyage. Mamaia. operational and management measures. this study will emphasize the influence over the EEOI value. due to meteorological conditions and change of berthing prospect the vessel was required to change some of the initial parameters. Romania Corresponding author: Nicoleta Acomi. Faculty of Electromecanics. Marine Manager. EEOI. Due to the main purpose of the vessel. This concept is Energy Efficiency Operational Index (EEOI) and represents the amount of emissions related to vessel's performances. Romania Paper ID: C-64 THE USE OF ECDIS EQUIPMENT TO ACHIEVE OPTIMUM VALUE FOR ENERGY EFFICIENCY OPERATION INDEX Nicoleta Acomi1. loaded from the departure port to the port of discharge and the ballast voyage between the port of discharge and a new destination for taking in cargo. 173 . 900663. marine pollution. 104 Mircea cel Batran Street. Faculty of Navigation.acomi@cmu-edu. Km 14. The subject of our research addresses to operational measures for minimizing CO2 air emissions and the way how the emission value could be influenced by external factors regardless of ship-owners‟ willing. Port Harcourt Aba Expressway. The electronic chart display and information system. the proposed instrument for achieving the air emissions is more than a quantitative measure. ECDIS Software will be used for adjusting the passage plan in real time for two situations: weather conditions and change of estimated day of arrival. The formula that allows us to calculate Energy Efficiency Operational Index involves estimation of distances. The type of marine fuel has not been changed during the voyage and the same the quantity of cargo carried out. The results of this study reveal the importance of using ECDIS software functions for achieving relevant values for Energy efficiency operational index and CO2 emissions and they represent a measure of changing EEOI related to meteorological condition.eu Abstract: To reduce air pollution produced by ships International Maritime Organization has developed a set of technical. distances and related speeds. Ovidiu Cristian Acomi 2 & Simona Ghiţă3 1 Constanta Maritime University.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. The Energy Efficiency Operational Index is obtained using one software developed for this purpose and to calculate the voyage‟s legs the authors used electronic chart system software. Port Harcourt. The distances are initial calculated by the passage plan of the voyage. Constanta. Constanta. 104 Mircea cel Batran Street. nicoleta.. air emissions. 900663. completed before starting the voyage considering a sum of factors from which the most important for this study are the speed of the vessel and the estimated time of arrival. Nigeria 3 Constanta Maritime University. This study aims analyzing the CO2 emissions for one voyage performed by one oil/chemical tanker. Abstract: Key words: 3D metrology. The new design allows the ram moving along the Z-axis guide without additional mechanical stress. The ram is the CMM part that carries the probe system and moves in vertical direction. Coordinate measuring machines (CMMs) are measuring devices that are able to measure and evaluate the geometrical features of very sophisticated geometrically parts. except horizontal arm CMMs. Timisoara. In order to maintain the ram in a certain position or to assure the optimum performance of the drive system during the up and down moving it is necessary to balance the ram weight. Faculty of Mechanical Engineering. Compared to the moving bridge and carriage driving systems. During the driving of the moving parts of a CMM is very important to not introduce rotation or perpendicular displacements on the linear moving direction due to the alignment errors of the drive system and guides. The first stage of the research deals with the acquisition and the development of knowledge about the main drive system generally used to motorize a CMM. linear drive system. the drive systems design solutions for the X.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. According to this approach. and Z-axis during the retrofit action of a coordinate measuring machine are presented. Liliana Tulcan & Daniel Stan Politehnica University of Timişoara. CMMs. Mamaia. On the other hand. Blvd. CMM design. Finally. whose performance can be improved by a retrofit action. After analyzing the main ways of balancing the ram weight. Romania Corresponding author: Aurel Tulcan.tulcan@upt. aurel. the counterweight balancing has chosen as optimal solution. Romania Paper ID: C-65 COORDINATE MEASURING MACHINE DRIVE SYSTEMS DESIGN Aurel Tulcan. Mihai Viteazu nr. in many companies there are many older generation of coordinate measuring machines. measurement. compact design and price. 174 . In this case. manually or DCC controlled. The functionality of products often requires parts with a high geometric accuracy that needs highly accurate metrology equipment to be measured. Y. the counterweight is driven by the Z drive system while the ram is moving free along the Z-axis guide given by the air bearings.1. CMMs have come a long way since the early models and for the consolidated architectures in the course of the years one of the actual tendencies is to improve their accuracy and dynamic parameters. the ram driving system requires additional precautions. the linear drive nut has chosen for the CMM because this drive system ensures an optimal ratio between performance. 300222. The paper presents an approach concerning the CMM drive systems design.ro Coordinate metrology has become essential for industrial dimensional metrology. The more the shape of the inlet port is smoother and the diameter of the piston is bigger. Romania Coresponding author: George Martinaş. Here there is room for optimization studies. Abstract: Keywords: cold flow simulation. The use of Computational Fluid Dynamics (CFD) along with optimization tools can help shorten the design optimization cycle time. Moreover CFD allows insight into the minute flow details which otherwise are not capture using flow bench tests. Traditional approach of experiments using flow bench testing is very costly as well as time consuming.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. combustion engines. One of the first conclusions will be that the valve diameter is a fine tradeoff between the need for a bigger diameter involving a grater mass of air filling the cylinder. valves and piston bowl is essential to realize the above mentioned requirements. Constanta. Air motion inside the intake manifold is one of the important factors. Romania Paper ID: C-66 COLD FLOW SIMULATION OF AN INTERNAL COMBUSTION ENGINE WITH VERTICAL VALVES USING LAYERING APPROACH George Martinaş. Mamaia. This is only the base for an optimization process targeting to increase the volume of air accessing the combustion space and to increase the turbulence of the air at the end of the compression stage. This requires refinement of the in-cylinder flow.ro Development of any internal combustion engine is driven primarily by fuel efficiency and emission requirements. 900663. The relative pressure indicates a suction effect coming from the moving piston. which govern the engine performance and emission of multi-cylinder diesel engines. Design optimization of the intake/exhaust port. finite volume analysis. mixture formation and combustion processes. georgemartinas@ceronav. the aerodynamic resistance of the geometry will be smaller so that the difference of inlet port pressure and the pressure near to piston face will be smaller. 175 . 104 Mircea cel Batran Street. and the need of a smaller diameter in order to reduce the blind zone. Liviu-Constantin Stan & Andreea Arsenie Maritime University of Constanta. Any cold flow study on IC is targeting the process of identifying and improving the fluid flow inside the ports and the combustion chamber. Here again there is enough room for more optimization studies. the calculus domain in cross sectional related problems was modelled using a Boolean algebra which uses addition and subtracting math operations using some „simple‟ geometrical shapes. Cornel Panait1. However. the points inside a „simple‟ shape which is a part of a domain. Romania Paper ID: C-67 DATA FILTRATION ORIGINAL ALGORITHM FOR THE COMPUTER BASED CALCULUS OF THE STRESSES WITHIN AN ANALYTICAL MODEL Emil Oanta1. One of the most important consequences of this algorithm is the automatic analytical calculus of the extreme stresses in a generally defined inhomogeneous cross section. graphs and generally. Constantin Dumitrache1 & Anca Dascalescu2 1 Constanta Maritime University. Romania 2 „Politehnica‟ University of Bucharest. Faculty of Power Engineering. may offer the location of the maximum stresses inside the entire cross section. All the points inside these „simple‟ shapes which are used to define the cross section are included in a large collection of points at the entire cross-section level. for any point inside the cross section may be assigned a color related to the scale of the overall stresses. In a computer graphical representation of the stresses. Constanta. Adrian Sabau1. constraints. In this way the first stage was to conceive a set of criteria to generate the minimum number of points in each type of „simple‟ shape.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. taking into account the regions where the maximum values may be found for both normal and shear stresses. beside this visual method to provide information about the state of stresses there must be also considered general criteria to locate the extreme stresses. In this way. 900663. numerical and experimental studies. 313 Splaiul Independentei. 104 Mircea cel Batran Street. Romania Corresponding author: Emil Oanta. Complex phenomena may be modelled using these sources of information together with a strategy to integrate the studies in a unique overview level of understanding. In this context. 060042. Mamaia. visual information. The definition of these subdomains takes into account several aspects. An important aspect regards the points where the maximum stresses might be found inside these „simple‟ shape bodies. A method to have a quick vision regarding the data is to use diagrams. eoanta@yahoo. Sector 6. The purpose of our study is to find the most intelligent criteria to select the smallest subset of points from the large collection of points belonging to the „simple‟ shapes included in the entire cross section. inhomogeneous cross section. The authors have an extensive experience regarding the original computer aided analytical models. automatic calculus in structural studies based on analytic models uses various methods to define the domain and to perform the according calculi. These criteria must take into consideration the regions where the maximum normal and shear stresses may be found in an inhomogeneous cross section and the constraints of the algorithm. extreme stresses locations. Faculty of Electro-Mechanics. The second stage was to conceive a set of analytical criteria for the filtration of the large collection of points. 176 . Bucharest. These computer based studies offer a large amount of data which must be interpreted by the analyst.com Computer based studies in engineering usually use three types of investigation methods: analytical. In this way. Abstract: Key words: data filtration original algorithm. other results consist of the software developed to verify the theory. integrals are replaced by their mathematical exact solutions. analytical model. eoanta@yahoo. Constanta. Alexandra Raicu. In this way we have created an algorithm which uses „exact‟ relations for the calculus of the integrals related to the cross sectional problems.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. or domains for which their boundaries are approximated by known functions and the according calculus is performed using an algorithm.e. 177 . This Boolean algebra uses addition and subtraction operations. being considered a Boolean algebra which operates with „simple‟ shape domains. Faculty of Electro-Mechanics. Taking into account all these ideas there were considered rectangles and circles as basic simple shapes and domains whose boundaries are approximated by spline functions. In this way we use a virtual rectangle which is framing the triangle. software application. such as calculus parallelization. The „simple‟ shapes are closely connected to the calculus of the stresses. so called. i. For common problems. as a „simple‟ shape to be included in our. Beside the algorithm. In this way. An important consequence of the paper consists of the opportunity to create modern computer aided engineering applications for structural studies. depending on the sign of each „simple‟ shape (-1 for the shapes to be subtracted).com Various engineering calculi use integral calculus in theoretical models. 900663. For instance. If the region over which the integration is performed is complicated. which use: intelligent applied mathematics background. Mihaela Barhalescu & Tiberiu Axinte Constanta Maritime University. computer aided solutions and a new generalization methods. a general defined triangle for which we have direct calculus relations may be used to create the discretization of any domain in cross sectional related integrals. The domain triangularization methods offered us the general idea to consider the triangle. By „simple‟ shape we understand either shapes for which there are direct calculus relations. The first idea is to divide the domain in smaller sub-domains for which there are direct calculus relations. Mamaia. The purpose of the work is to present our studies regarding the calculus of the integrals over the cross-sectional domains. analytical and numerical models. in strength of materials the bending moment in discrete points may be calculated using the graphical integration of the shear force diagram which usually has a simple shape. being generated additional right angled triangles. 104 Mircea cel Batran Street. library of elementary shapes. The sign of rectangle and the signs of the additional triangles are depending on the sign of the initial triangle. Romania Paper ID: C-68 APPROXIMATION METHOD TO COMPUTE DOMAIN RELATED INTEGRALS IN STRUCTURAL STUDIES Emil Oanta. Another example is in mathematics where the area of a subgraph may be approximated by a set of rectangles or trapezoids in order to calculate the definite integral. there are several methods used to calculate the integral. modern information technologies and advanced computing techniques. Our research is dedicated to the creation of general computer based methods to perform calculi in structural studies. refined aspect which requires special attention. Abstract: Key words: approximate method. Romania Corresponding author: Emil Oanta. Cornel Panait. domain triangularization. various accuracy tests. induced air flotation. 2. 4. Romania Paper ID: C-69 FEASIBILITY OF ANAEROBIC DIGESTION OF FLOTATION SKIM AND ITS POTENTIAL AS RENEWABLE ENERGY SOURCE Salam J. 5.6%.5.1%. Bash Al-Maliky.6%. salambash2000@yahoo. and 43. 178 . Al-Mustansiriya University. 68.5. Chemical Oxygen Demand (COD) removal efficiencies of 72.25% were achieved for R1-R5 respectively. These removal efficiencies were significantly improved at temperature of 45C.5.2%.8 l/day were determined at operation temperatures of 45ºC (compared with 3. 1. 72. where efficiencies of 91. These reactors were operated at two different temperatures (25ºC and 45ºC).1%.0:10 (R1-R5). very promising biogas production rates of 4. while the rest of working volume was filled with livestock manure (as inoculums). biogas. Bash Al-Maliky College of Engineering. at temperature of 25C. to determine the temperature effects on digestion performance.7% and about 50% were achieved for these reactors. Five laboratory scale batch reactors (each of 10 L working volume) were used herein to test the effect of different IAF skim to working volume ratios. Abstract: Keywords: anaerobic digestion.5. 52.com The high portions of organic and Greasy constituents of the skim of Induced Air Flotation (IAF) unit that is typically land disposed or rendered have made it environmentally problematic for the receiving bodies due to its poor natural solubility and degradability. In addition.5.0. Iraq Corresponding author: Salam J. 60. Mamaia. One solution for that was the use of anaerobic digestion.5%. namely 0. 81. substrate composition. digestion temperature.4 l/day at 25ºC) for the majority reactor life times.1%.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. 60. This achievement may compensate the treatment costs in addition to the supply of cheap renewable energy. Within the frame of TC platform connections between products. In the design phase is required the allocation of rolls to various members of the design department: designers of the various components of the punch. Bill of Materials). documents flow. If the assessment process finds that the conditions imposed are not fulfilled. Traian Buidoş & Voichiţa Hule University of Oradea. The paper defines the technical documentation flow (flow of information) in the process of constructive computer aided design of tool. In the first phase 3D models of active components are modified. Under these conditions Teamcenter database may contains two or more versions of documentation for the successive punch project. The process of changing determines specific information and documents flow. in a virtual enterprise. a specific procedure is followed to generate o new release of documentation. Romania Paper ID: C-70 USING TEAMCENTER ENGINEERING SOFTWARE FOR A SUCCESSIVE PUNCHING TOOL LIFECYCLE MANAGEMENT Florin Blaga. Faculty of Managerial and Technological Engineering. These changes generate modification of some component of successive punching and cutting tool. From these on obtain 2D drawings needed to realize the parts of assembly.Viorel Pele. verifying task of documentation.xls) format and can be transferred to other departments of the company in order to supply the necessary materials and resources to achieve the final product. The results are able to be implemented also in a real enterprise. verification and correction of documentation. teamcenter. underlying workstations that carry out various operations of manufacturing process.ro The paper presents studies and researches results of the implementation of Teamcenter (TC) integrated management of a product lifecycle. original and new versions named revised versions of project.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. 410087. Abstract: Key words: lifecycle management. Romania Corresponding author: Florin Blaga. The next step is to modify the execution drawings. For each operation of the technological process the corresponding phases are described in detail. conducting and managing changes. 179 . Designers realize the 3D model of the punch. improves efficiency of managing product information. eliminating time working with search. This paper describes the procedure to modify or change certain dimensions of sheet metal part obtained by punching. the task is returned to the designers for fix the errors. the digital prototype of punching tool moves to following lifecycle phase of manufacturing process. Mamaia. mainly referring to its active components. Oradea. processes and resources are generated. while ensuring the uniqueness and completeness of the product data. fblaga@uoradea. After confirmation of changes by the client and the approval of the project manager. The paper revealed that the implementation of Teamcenter PDM in a company. Iulian Stǎnǎşel. 1 Universităţii Street. In the Teamcenter platform is defined rolls and persons involved in the approval. digital prototype. approval decision of revised documentation. Teamcenter enables to describe manufacturing company structure. The BOM may be exported in MS Excel (. After the design phase is completed a list of parts is generated containing standard or manufactured components (BOM. machining processes for each manufactured component. It is organized into hierarchical levels: the punch assembly. After 3D and 2D design. Alexandru. The product was considered a successive punching and cutting tool. designed to materialize a metal sheet part. The surface tractions distribution in a normally loaded frictionless contact problem is known from the Hertz theory. Mamaia. von Mises equivalent stress. sergiu. The potential contact failure due to plastic yielding is generally predicted using the von Mises yield criterion. 720229.ro Stress analysis in the elastic contact between two spheres under combined normal and tangential loading is a fundamental problem in engineering. Mechatronics and Management. Romania Paper ID: C-71 AN ENGINEERING MODEL FOR YIELD INCEPTION IN SLIP-STICK ELASTIC CONTACTS Sergiu Spinu & Dorin Gradinaru Stefan cel Mare University of Suceava. 13 University Street. assuming bodies of arbitrary (yet smooth) surface as semi-infinite solids confined by a plane boundary. The use of these fundamental solutions in linear elasticity is authorized by the so-called half-space approximation employed in the theory of contact mechanics. is based on the superposition principle applicable in the frame of linear elasticity. yield inception. The method applied herein in assessment of subsurface stresses induced in an elastic solid by a known distribution of surface tractions. and on the fundamental solutions derived for the elastic half-space by Boussinesq and by Cerruti.spinu@fim. normal and shear. 180 . which uses the maximum of the second deviatoric stress invariant to locate the plastic yield inception in the elastic body. who concluded that the full-stick hypothesis concerning an elastic spherical contact requires an unrealistic infinite frictional coefficient to support the infinite shear contact tractions arising at contact periphery. applicable in the modeling of particle – flow simulations or in study of contact between rough surfaces. The study is based on the computation of stress field using a well-established semi-analytical method coupled with an acceleration technique based on the convolution theorem. Abstract: Key words: stress analysis. while the tangential frictional contact problem was solved separately by Cattaneo and by Mindlin.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Faculty of Mechanical Engineering. This paper aims to establish the relation between the frictional regime and the normal and tangential loading components. and model fitting is employed to derive simple empirical formulas pertinent to practical engineering applications.usv. which leads to plastic yield inception in a slip-stick spherical contact between similarly elastic materials. slip-stick. Consequently. in which a Coulomb friction law is established to impose an upper limit to shear tractions. Suceava. an annular region of slip has to be assumed. Romania Corresponding author: Sergiu Spinu. expressing the stress and displacement field induced in an elastic and isotropic half-space by a normal or a tangential concentrated force acting on the half-space boundary. The results obtained for the spherical slip-stick contact are normalized to allow application to any elastic constants or contact curvature. semi-analytical method. necessitating supplementary temporal discretization capable of simulating the memory effect specific to viscoelastic materials.e. Romania Paper ID: C-72 SEMI-ANALYTICAL COMPUTATION OF DISPLACEMENT IN LINEAR VISCOELASTIC MATERIALS Sergiu Spinu & Dorin Gradinaru Stefan cel Mare University of Suceava. allowing for arbitrary contact geometry (rough real surfaces can also be considered provided the discretization error is contained) and arbitrary loading history. stating that a viscoelastic problem has an associated elastic problem to which the former reduces after removal of time variable via transfer to Laplace transform domain. additional integration over the loading history is required. memory effect. Suceava. Mechatronics and Management. we are anticipating a semi-analytical solution for the resolution of viscoelastic contact problems. 720229. Abstract: Key words: linear viscoelastic displacement. When assuming a viscoelastic constitutive law.usv. 181 . spatial discretization is sufficient to circumvent the continuous integration arising in the theoretical model. i. i. seals. semi-analytical method. 13 University Street. as a prerequisite to a semianalytical solution for the problem of the viscoelastic mechanical contact. in which contact pressure and displacement are obtained for every new time increment in a step-by-step approach. When this principle is applied to derive the pressure distribution and the contact radius directly from their elastic counterparts. Faculty of Mechanical Engineering. or other parts involving materials like elastomers or rubber. By deriving new influence coefficients. Additional tedious manipulations are required to cover all the possible cases (in a number of five according to Ting‟s theory) emerging in an arbitrary loading history. the property that the current state depend upon all previous states attained from the initial loading. solutions of limited viability are obtained. The classic literature on the latter is based on the so-called correspondence principle between the elastic and the viscoelastic solution of a problem of stress analysis. Romania Corresponding author: Sergiu Spinu. when the material response to load depends explicitly on time and on the loading history. A semi-analytic solution for the contact problem involving displacement assessment is expected to provide greater generality. sergiu. computation of displacement induced in a viscoelastic material by a known but otherwise arbitrary history of surface tractions can be achieved via superposition authorized by the Boltzmann superposition theory applicable in the frame of linear viscoelasticity.ro The mastering of tribological performances of viscoelastic materials is important in assisting the design of products like automotive belts and tires. without prior displacement assessment. correspondence principle.e. biomedical devices. The prediction of mechanical contact performance based on the Hertz model is no longer accurate in case of viscoelastic materials. Mamaia.spinu@fim. Based on the newly advanced model. This paper aims to advance a semianalytical solution for displacement computation in viscoelastic materials. As equations describing the purely elastic model are time-independent.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. mihut. The basis of the system developed is a device for determining the volume and quantity of coal excavated acting on the march and optimize the system speed excavator working order.dump of high productivity. 182 . cost estimation and tracking product unit profitability of each band on various sections zones. at minimum cost production. conveyor belts. 30 Eroilor Street. transducers. control power consumption. Newly developed system aims to achieve the following determines: the optimum energy excavation depending on the nature of excavated material . Key words: excavation. thus achieving automatic control of the loading belt.nicoleta@gmail.. Tg-Jiu. For this reason any matter of calculation.com Abstract: Excavation tailings (scraping) and extracting the useful (lignite) in surface mine pits in Mining Basin Oltenia is achieved with technological lines of excavation . energy and materials. insofar as they are requested and used all the resources it has. To achieve experience in the process was chosen excavator SRS 1400 from South Jilt career in the CET Turceni. high capacity transport. Through a system of three ultrasound transducers to determine the smart instant of coal excavated section which. etc. etc. design. A correlation of working capacity of the main components of technological lines (motor rotor. clay. Such equipment is important for the system dispatching in surface mine pits. monitoring the amount of coal excavated. car dumps) is necessary for economic reasons on electricity consumption. Systems in general and particularly automated systems can not be designed without taking into account their degree of effectiveness.transport . The device is designed primarily following the careers of lignite production: rotor excavators. Another important requirement is closing the loop of the machine drive system of an excavator for a uniform deposition of carbon on the strip. shale.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Permanent display size excavated volume snapshots in the excavatorist cabin permite to track tape loading. eliminating unproductive times and information management to determine profitability. eliminate damage to the plant by conveyor belt breakage detection or tread and eliminating time and energy losses by limiting reproductive idle. Romania Corresponding author: Nicoleta Maria Mihut. 210135. coupled with the tape speed. analysis and operation of transport systems continuously subordinate requirements optimality. integrated over time will determine the amount of excavated coal. At the excavation is desired a density estimate for each machine production tracking. energy optical regime to rubber belt conveyors. Faculty of Engineering. rubber conveyor belts and dump facilities. Romania Paper ID: C-73 DESIGNING A SYSTEM FOR MEASURING THE FLOW OF MATERIAL TRANSPORTED ON BELTS USING ULTRASONIC SENSORS Nicoleta Maria Mihut “Constantin Brancusi” University of Tg-Jiu. production tracking. economic times to use the excavator bucket teeth rotor. The question of coal excavated volume has a great importance in the mine pits.lignite. ultrasound. compliance with minimum consumption of time. Mamaia. They could be described using the term CAD/CAM/CAE. Lean philosophy is an approach to production to minimize the use of all resources. They consists of completely different packages for both the design of elements.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Konarskiego 18A. including time. 183 . They are used for computer programs assisting the design.pl One of the most effective methods of production management is considered the Lean Engineering. as well process design. first identify and then eliminate activities which does not generate added value in the field of design. and customer relations. The system let to functionally link these components to simulate the work process and to introduce the rules of Lean Engineering. zbigniew. Romania Paper ID: C-74 VIRTUAL MODELLING OF COMPONENTS OF A PRODUCTION SYSTEM AS THE TOOL OF LEAN ENGINEERING Monica Zbigniew Silesian University of Technology. The idea of the presented work is to use the Siemens NX software for aiding the process of Lean Engineering system creating. Abstract: Key words: Lean engineering. CAD/CAM/CAE system. Poland Corresponding author: Zbigniew Monica. The analysed system is a robotised workcell. as well as simplification of all production processes and maintenance. Their common feature is generally consider with their application area. Lean Engineering is to use a number of principles and practical guidelines that allow you to reduce costs by eliminating absolute extravagance. This implies. These are resources that are used in the company for a variety of activities. 44-100 Gliwice. but also use a more automated machines to produce large quantities of products with a high degree of diversity. robotised workcell. The purpose is also to determine the rules of Lean designing in such advanced design and simulation environments. development and manufacturing phases of a manufacturing process. and consequently the use of its European markets. conveyors and buffers. In the NX system are created the components of the designed workcell such as machine tools. The high efficiency of this method resulted in a significant increase in interest in the philosophy of Lean among European companies. Nowadays it is possible to apply the powerful engineering programs to realize the concept of Lean Engineering. supply chain management.monica@polsl. industrial robot. Faculty of Mechanical Engineering. Institute of Engineering Processes Automation and Integrated Manufacturing Systems. The producers of these principles not only employ teams multi-professional employees at all levels of the organization. manufacturing. The term “lean engineering” was created by Japanese manufacturers. Mamaia. Basic research.majzner@polsl. This paper presents a methodology to develop innovative methods of construction and repair of wagons loading space using the latest technologies and the development of procedures for repairing wagons for the transport of bulk materials. Gliwice. fibrous materials. even with the growing interest in this form of transport. The rising cost of goods transport by road are becoming less profitable.additional corrosion protection. cause. The tests were performed using Siemens NX software. In the case of steel sheathing specified levels of damage that were input data for the design of a composite.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. due to the rising cost of materials and related services. Romania Paper ID: C-75 COMPUTER AND EXPERIMENTAL STUDIES OF THE USE OF COMPOSITE PANELS IN PROCESS RENOVATION OF FREIGHT WAGON Michał Majzner. 184 . Abstract: Key words: composite panels. a modification of the model cycle repair and overhaul. Mamaia. when the goods included ways of measuring the level of damage to the steel sheathing and composite sheathing. Operating costs of freight cars in the area of maintenance and renovation. that the viability of this form of transport is still on the verge of profitability. method of joining composite panels with sheathing. Andrzej Buchacz. which was conducted. and technology production and use. Andrzej Baier. Faculty Of Mechanical Engineering. Composite structures where modelled in the form of a composite material shell elements and solid elements.pl Rail transport is an essential part of the modern economy. in cooperation with DB Schenker. CAx. with particular emphasis on coal assortments. Łukasz Grabowski & Michał Sobek Silesian University of Technology. supplementary material selection . railway. To this end it is proposed. FEM. in the case of a composite sheathing the methodology of testing the degree of damage to the sheathing and the manner of their further repair. Sampling methodology takes into account the level of a composite sheathing degeneration. Institute Of Engineering Processes Automation And Integrated Manufacturing Systems Corresponding author: Michał Majzner. michal. However. Poland. Optimization of composite materials subjected. Experimental studies include stress tests and verification of connections panel design and construction of connecting elements. to carry out multi-criteria analysis and selection of composite components that predestined for use in the repair procedures. Mamaia. The constant pressure is applied to all surfaces. For static analysis presented here I shall use the steel as material that has given mechanical properties. Taking advantage of the linearity of the finite element model.com This paper aims to present the static analysis for two levels of a container ship‟s construction as follows: the first level is at the girder / hull plate and the second level is conducted at the entire strength hull of the vessel. The validity of the results of this program will be assessed by the verification book with mechanical problems with answer keys. In this paper I shall apply this software for static analysis of the effect of wave pressure on the ship‟s hull. The materials used are taken into account as being uniformly and homogeneously. Abstract: Key words: material. ANSYS Mechanical software is a graphical interface for pre-processing. Constanta. we can measure the limits of pressure that the ship‟s hull can withstand. there is an applied pressure of 1 Pa. 32 GB memory installed. The way that the effects for different values of pressure can be determined is described in the procedure of defining the analysis and evaluation of results. The solver used is Mechanical APDL. alina_ion@rocketmail. Mircea cel Batran Street. 104. We shall use the software package ANSYS Mechanical 14. the shared memory parallel version of ANSYS refers to running ANSYS across multiple cores on an SMP system. zip code 900663 Corresponding author: Alina Ion. finite elements. Using this procedure. resistance. 185 .ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. This article will describe the work for the static analysis of a hull plate.33 GHz. geometry. In terms of software. Department of Navigation. solver and post-processing of the mechanical problems. Boiler and Pressure Vessels Code). stress. as displayed in ANSYS library according to ASME BPVC (American Society of Mechanical Engineers. The distributed memory parallel version of ANSYS (Distributed ANSYS) refers to running ANSYS across multiple processors on SMP systems or DMP systems.5. The results obtained can be scaled as needed. The program is run on a computer with four Intel Xeon X5260 CPU processors at 3. Romania Paper ID: C-76 STATIC ANALYSIS OF HULL PLATE USING THE FINITE ELEMENT METHOD Alina Ion Constanta Maritime University – Romania. and finally (and most important how to increase capacity of the enterprise. which are used for straight line displacement and steering. Iasi. Bv. george. and kinematic synthesis. overcome these disadvantages. Timișoara. Solution proposed by authors. by implementing a mechanical transmission with differential gears. between workers and their supervisors. In this work we analyse how to eliminate waste or redundant movement. Craiova. România 2 Technical University “Gheorghe Asachi” of Iasi-Romania. Mamaia. use two motor at the back wheels. These electric motors must satisfy high torque requirements at low angular speed. The obtained results validate proposed transmission model and enable success implementation of this transmission to a wheelchair experimental model.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. in order to verify the functionality of the proposed transmission. by proper varying them angular velocity. how to encourage proper maintenance activities. Romania Corresponding author: George Belgiu. and (vi) reduce manufacturing cycle time or customer service time.com Abstract: This paper presents the researches developed by authors for design a motorised wheelchair for disabled people. igeonea@yahoo. products. Romania Paper ID: C-77 FACILITY DESIGN PROCESS ANALYSIS George Belgiu1 & Constantin Cărăușu2 1 Politehnica University Timișoara. or people. one is for the straight line motion. They are made simulation in Adams. how to promote product and service quality. how to provide flexibility to adapt to changing conditions. It is presented the kinematic scheme of the proposed transmission. 700050. facilitate the entry. The design novelty consist that are used two transmission chains. 300222.ro Abstract: Facility layout objectives are (i) minimize material handling costs. No. and one smaller motor for steering. (ii) utilize space efficiently. or between workers and customers. (iv) eliminate bottlenecks. exit. Romania Corresponding author: Ionut Geonea.belgiu@upt. The actuation of this solution is with one traction DC motor with steps adjustable angular speed. 59A. locomotors disabilities. how to provide a visual control of operations or activities. mounted on a wheelchair. Department of Machine Manufacturing Technology. Mangeron. Faculty of Mechanics. how to incorporate safety and security measures. Department of Management. and one for steering. It is developed a CAD model of the transmission. for that are expensive and difficult to control. (v) facilitate communication and interaction between workers. Mihai Viteazul 1. (iii) utilize labour efficiently. kinematic synthesis. 186 . These devices enable disabled people perform many activities of daily living thus improving their quality of life. Key words: wheelchair. 107 Calea Bucuresti Street. Curently existing solution of electric motorised wheelchair. and placement of material. diferential transmission. Paper ID: C-78 DESIGN OF A WHEELCHAIR FOR DISABLED PEOPLE Ionut Geonea & Nicolae Dumitru University of Craiova. Blvd. 200512. This relates to different types of industry. synthesis. The work is the continuation of done by the authors researches related to designing of mechatronic discrete systems that contains mechanical part connected to external electric network and piezoelectric stack actuator for vibration reduction. as a result of solving the reverse task. cascade. orientated for physical realisation and applications constrains. Additionally. Romania Paper ID: C-79 PARAMETERS IDENTIFICATION AND SELECTION IN VARIOUS MECHATRONIC VIBRATING STRUCTURES Andrzej Buchacz & Damian Gałęziowski Silesian University of Technology. The main focus of the paper is given to the optimalisation of selected parameters. Study has been done based on piezoelectric equations that combines mechanical and electrical concerns. With the study for optimal selection of the parameters. Key words: mechatronic systems. Investigations have been done also with different selected types of received from synthesis structures. Parameters identification in modelled structures is known as one of the most important phases in the design process. Basing on their paramaters ranges analysis. related to synthesis resulted from chosen distribution method of dynamical characterstics function and dimensionless transformation and retransformation algorithm. damian. Poland Corresponding author: Damian Gałęziowski. amplitudes and dynamical flexibilities functions. Unwanted effect leads to unexpected problems like stops. 44-100 Gliwice. damping.galeziowski@gmail. Abstract: Acknowledgements: This work has been conducted as a part of research project PBS2/A6/17/2013 supported by the National Centre for Research and Development in 2013-2016. branched or mixed systems. Design process is considered in synthesis form that has been done in relation to given requirements in form of resonant and antiresonant frequencies. This is also the key point for placing received solutions in the practical applications. Faculty of Mechanical Engineering. Mamaia. the paper will extend the knowledge of using piezo stack actuators for vibration control in considered mechatronic systems. dimensionless equations. Institute of Engineering Processes Automation and Integrated Manufacturing Systems.com One of the biggest problem in designing of the machines and various types of the systems is vibration control and reduction. in relation to physical realizations. Another new element is that the parameters identification has been divided and detailed for the ones that describe the piezoelectric actuator and known ones. piezo.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. It‟s possible to receive. The usage of diverse mechatronic systems in damping of vibration is more and more common last years. 187 . Konarskiego 18a Street. brakeges. It has to be known how to select properly respective and major parameters of the system to match with given requirements within previously assumed level. faster wear of the units and than due to this higher costs. vibration. it‟ll also widen their possible practical applications. it‟s been planned to determine the limits that create the selected parameters with positive or negative values. The paper follows all stages of research and production. This paper tries to demonstrate and highlight the effectiveness of the concept of Digital Prototyping. andreiadam83@yahoo. Nr. simulation of the structural resistance. The whole process can be realised by one skilled engineer very fast and effective. P-ta Victoriei. P-ta Victoriei. case study. Department of Material and Manufacturing Engineering. they can be improved. For this we will use the existing model and redesign it too add some functional new elements that enhance the entire product. Department of Mechatronics. Timisoara. they often need to be redesigned to meet new market requirements.com Abstract: After products are on the market for some time. This paper presents a set of stages that focused on the particular processing conditions of redesigning a product. analysis of the injection process and beautification) offers a helpful tool for engineers. In this paper we used modern technology based on digital prototyping and designed a new product from a model already existing on the market. disassembly the product and studying the component. digital prototiping. Key words: product redesign. Romania Paper ID: C-80 REDESIGNING A PRODUCT USING MODERN CAD-CAM SOFTWARE Andrei Pop1 & Andrei Adam2 1 University Politehnica Timisoara. 300006. Romania Corresponding author: Adam Andrei. Products on the market are relatively simple. adding new features and testing the new product. 2. 188 . Nr. from analyzing the existing product. The methodology in this paper is: researching and choosing the reference product. creating a 3D model of the product. The results of this paper show that using advance CAD-CAM techniques in designing a new product from an existing one available on the market mould offers a significantly manufacturing time and cost reduction. Timisoara. like Digital Prototyping in industry is an effective way to produce new products. redesigning the product using Digital Prototyping. both to reduce design time of a new product. New products are generally derived from similar but outdated products.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. The ability to simulate and test a new product with modern CAD-CAM programs in all aspects of production (designing of the 3D model. 300006. Redesigning a product is an important part of the production and development process. 2. The purpose of this paper is to show that using modern technology. structural analysis and simulation of the new product assembly. Mamaia. The chosen product is a tape measure device made of plastic components. creating a CAD geometric model of each part of the studied component. plastic parts. but also the costs required for implementing this step. Romania 2 University Politehnica Timisoara. MD-2045. spatial mission to Mars planet. in the head of the list being the complexity and very low efficiency energy. thermal and mechanical effects of high-speed jet upon intersecting bodies and efficiency of the dust cleaning operation on the surfaces of space vehicles under atmospheric conditions of Mars. some disadvantages of using this system. thermomechanical processes. In the case of an extended cleaning action it can be produced the erosion of the attacked areas due to the sand particles movement with high speed. q. Paul Lixandru1. The purpose of the study on the use of coaxial plasma cannon to clean the dust from the surfaces space vehicles in spatial missions to Mars. The most important schematization refers to the shape and position of the plasma layer and uniform distribution of Lorentz forces on the unloading layer. The analysis of the state and of the movement of gas launched by the coaxial plasma cannon had in attention. T and ρ and the jet speed v. Moldova Corresponding author: Tudor Cherecheş. the interaction of the jet with the rarefied atmosphere of Mars and during the dust cleaning operations was conducted on a 3D physical model with a symmetrical plan which schematize real processes.chereches@yhoo. 9.com The authors present the results of the numerical simulations of the thermomechanical processes taking place inside the coaxial plasma cannon and at the interaction between high speed gas jet and the dust deposited on the surfaces of the space vehicles. The plasma cannon launches very short pulse type jets. besides satisfactory efficiency of the coaxial plasma cannon in the operation of removing the dust on surfaces of the spatial vehicle in space mission to Mars. Numerical simulations showed. Studenţilor. space vehicles. The mechanical and thermal effects produced by the gas jet on the intersected surfaces. Str. Mamaia. România UTM FIMCM. Dragomiresti. were analyzed by numerical simulations. 137210. 189 . Romania Paper ID: C-81 NUMERICAL SIMULATION OF THE OPERATION OF A PLASMA CANNON IN MISSION TO MARS PLANET Tudor Cherecheş1. Blocul de studii nr. the stresses and the temperatures induced in the structure have very low values. with the output speed of the order of thousands of meters per second at temperatures of about 10. Numerical simulation of mechanical and thermal processes at the forming of the jet in cannon .000 K. numerical simulations. the status parameters p. was to elucidate some aspects of the system's energy efficiency. There were no observed negative effects. Abstract: Key words: coaxial plasma cannon. Daniel Dragnea1 & Sergiu Mazuru2 1 2 SC UPS PILOT ARM SRL. tudor.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. dust cleaning operation. Chişinău. 6. truta_marian@yahoo. In the braking phase. In order to capture the effect of heat. Romania Paper ID: C-82 ANALYSIS OF HEAT CONDUCTION IN A DRUM BRAKE SYSTEM OF THE WHEELED ARMORED PERSONNEL CARRIERS Alin-Marian Puncioiu. Bucharest 050141. Marian Truţă. It was drawn the efficiency characteristic by plotting the coefficient of effectiveness relative to the coefficient of friction shoe-drum. Competitiveness and Responsibility in the Field of Romanian Fundamental and Applied Economic Research”. For the proper conduct of the special vehicles mission in rough terrain.com Abstract: This paper is an integrated study performed over the Braking System of the Wheeled Armored Personnel Carriers. contract number POSDRU/159/1.5/S/140106. These tests aim to establish their sustainability in terms of wear and the variation coefficient of friction between the friction surfaces with increasing temperature. Investing in people! Key words: special vehicle. Thus induced thermal loads determine thermo mechanical behavior of the structure of wheels. ANSYS. This project is co-financed by European Social Fund through Sectorial Operational Programme for Human Resources Development 2007-2013. 5th sector.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. no. Acknowledgment: This paper has been financially supported within the project entitled “Horizon 2020 - Doctoral and Postdoctoral Studies: Promoting the National Interest through Excellence. Dept. on one hand. In the present work a finite element model for the temperature distribution in a brake drum is developed. Marin Marinescu & Valentin Vînturiş Military Technical Academy. during the braking process. efficiency characteristic. Drum brakes are checked both mechanical and thermal. the importance of the possibility of immobilization and retaining position and. of Military Automotive and Transportation. on the other hand. Study the transfer of heat generated during braking is useful because results can improve and validate existing theory or may lead to the development of a mathematical model to simulate the behavior of the brake system for various tactical and operational situations. kinetic energy transforms into thermal energy resulting in intense heating and high temperature states of analyzed vehicle wheels. Modeling using simulation programs led eventually to the establishment of actual thermal load of the mechanism of brake components. Bd. The vehicle drum brake systems can generate extremely high temperatures under high but short duration braking loads or under relatively light but continuous braking. Heat transfer processes influence the performance of the braking system. 190 . we are talking about. a transient thermal analysis is performed in order to predict the temperature distribution transitional brake components. These structural and thermal FEA models will simulate entire braking event. braking system. 39-49. Mamaia. Romania Corresponding author: Truţă Marian. George Cosbuc. Conclusions of this paper are relevant because theoretical data analysis results are validated by experimental research. It mainly aims to analyze the heat transfer process which is present in almost any industrial and natural process. heat transfer. The heat generated during braking causes distortion which modifies thermoelastic contact pressure distribution drum-shoe interface. the importance movement stability and reversibility or reversibility. to an encounter with an obstacle. Faculty of Mechatronics and Integrated Systems for Armament. Ioan Vedinaș. by employing commercial finite element software. Romania Abstracts-Section D Robotics and Computer Integrated Manufacturing: Industrial Robots. CIM Systems. Social Robotics. Entertainment Robotics 191 . Biological Inspired Robotics. Mamaia.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. The structure of human leg and its motions have been used as inspiration for design purposes. Abstract: Key words: kinematic synthesis. which exemplifies the shape and movement of a human leg. 107 Calea Bucuresti Street. 192 . Maple and MSC. Proportions of the linkage are estimated utilizing anthropometric measures of the human leg. Simulation results show that the proposed mechanism performs movements similar to those of a human leg. The mechanism must generate an approximately linear trajectory of foot during propulsion. Italy Corresponding author: Ionut Geonea. The proposed mechanism demonstrates that a one DOF closed loop mechanical linkage can be designed to the shape and movement of the biped human walking apparatus. Mamaia. and the results are comparable. the proposed mechanism for the legs must generate an ovoid path of the foot. For a simple control algorithm. a new leg mechanism for human motion assistance has been proposed for rehabilitation purposes. The mechanism is simulated and tested to verify the proposed synthesis. Marco Ceccarelli 2 & Cristian Copilusi 1 1 University of Craiova.Adams software packages are used to simulate and validate the kinematics of the mechanism. Faculty of Mechanics. booth for design and simulation purposes. by uniform rotating of actuating crank. biped walking. Cassino. Craiova. igeonea@yahoo. Romania Paper ID: D-1 NEW ASSISTIVE DEVICE FOR PEOPLE WITH MOTOR DISABILITIES Ionut Geonea1. 200512. rehabilitation.com In this paper. knee and ankle joints in case of the mechanisms and human subjects.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. There is made a comparison of the angular variations laws of the hip. A 3D model of the proposed system has been elaborated in Solid Works®. experimental tests. An experimental model of the rehabilitation mechanical system is elaborated and presented in detail and they are made experimental tests. The resulting linkage is a single degree-offreedom (DOF) mechanism. Romania 2 University of Cassino and South Latium. leg mechanism. Romania Paper ID: D-2 TRACKING CONTROL OF AN OMNIDIRECTIONAL MOBILE ROBOT Ionel Conduraru. and they have completely supplanted traditional ball mice over the last ten years [1]. 700050. conduraru. 193 . First.ionel@yahoo. This is a major handicap for omnidirectional drivetrains based on omniwheels or mecanum wheels. Imposed trajectory is drawn on the floor and using two mice is estimated distance traveled along the path traced. Iasi. dust. A robot navigation system based on optical mice has several notable advantages over wheel-based encoders. D. In this paper a short overview of internal gears with small difference between teeth number is presented. Optical mice based on high speed optical flow solve these problems. tracking control. while for the automatic transmissions they function to high speeds. Faculty of Mechanical Engineering.com Internal gear with small difference between teeth number are encounter in pumps that carry a fluid (progressive cavity pumps –PCP). which ultimately reduces friction and wear on the system. these couplings resist to great pressure. progressive cavity pumps. One of the advantages of these gears is given by the small teeth clearance. Video processing has an line detection and constantly looking imposed trajectory and drawn on the floor and traced throughout the trajectory correction made by controlling the robot kinematic. No. Mamaia. Mechanical Engineering. simina_cost@yahoo. The platform follows a trajectory imposed by using camera vision. small difference between teeth number. odometry. which by their nature slide easily and can slip in any direction. 43. Mangeron. Achieving accurate motion with a mechanical ball is difficult due to surface differences.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Second. Romania Corresponding author: Simina Macovei (Cîrlan). Any time the wheel slips on the surface it will cause an error in the position measurement. Abstract: Key words: internal gear. computer mice have been plagued with many of the same problems. Traditionally. Ioan Doroftei & Alina Conduraru (Slatineanu) ”Gheorghe Asachi” Technical University of Iasi. Thus we obtain a trajectory tracking and an estimate of the path traveled. For the pumps. Romania Corresponding author: Ionel Conduraru. Blvd. D. all of the mouse chips on the market track motion in two dimensions simultaneously. Mangeron 43. 700050. Platform for this study using three universal wheels arranged to the axis at an angle of 120 degrees between them. it has no moving parts and does not need to be in contact with the floor. and wear. Paper ID: D-3 AN OVERVIEW ON INTERNAL GEARED MECHANISMS WITH SMALL DIFFERENCE BETWEEN TEETH NUMBER Simina Macovei (Cîrlan) & Ioan Doroftei “Gheorghe Asachi” Technical University of Iasi. Key words: omnidirectional mobile robot. Mechatronics and Robotics Department. Iasi. Blvd.com Abstract: This paper describes a mobile robot position tracking system based on camera vision and a set of two optical mice and attached to omnidirectional vehicle. differential and planetary mechanisms (from vehicle automatic transmission). Blvd. for different values of the applied forces. Mechanical Engineering. 700050. everyday all around the world. thus we developed a new device that we indented to be low cost and easy to manufacture. D. The prices for ankle rehabilitation systems are still high. 194 . ankle.com Due to injuries that occur on the ankle joint. etc. Thanks to this process. Romania Corresponding author: Cristina-Magda Cazacu. rehabilitation. pvc. crysty_mag@yahoo. like aluminium. Mangeron. more and more rehabilitation devices have been developed in recent years. the dimensions are taken so that the proposed system will ensure functionality but also a small dimensions and low mass. Mechatronics and Robotics Department. Iasi. We will perform a stress analysis to determine the most strained zones. the most convenient model and materials will be choosen. theyr section. for further development of the device. No. Abstract: Key words: stress analysis. in order to avoid links breakage and to diminuate. Mamaia. For the 3D model that we design. as much as possible. considering the physiological dimensions of the foot and lower leg. 43. Romania Paper ID: D-4 STRESS ANALYSIS FOR A NEW ANKLE REHABILITATION DEVICE Cristina-Magda Racu (Cazacu) & Ioan Doroftei “Gheorghe Asachi” Technical University of Iasi. The components from the 3D model are established to be from light materials.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Buchacz A. No 3.5 and in the process offline programming of robots located in the station.P. References: 1. The approximate Galerkin‟s method in the vibrating mechatronic system‟s investigation. Mason W. Gliwice. (1997). products. Special Issue: 80th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Homogenization of mechatronical systems in modeling piezoelectric layer. Issue 1. Volume 9. Morecki A. Automatic handling machines Scientific and Technical Publishing. preparation of documentation. 25. Machine Dynamics Problems.. pp. p. dynamic. WNT Warszawa 1999 4. Use of CAx software.32. Zdanowicz R. Warsaw 3. Poland Corresponding author: Andrzej Wróbel. 20-22 May. carrying out structural analysis. b) Delmia V5 R19 this is environment to design and build a robotic station manufacturing line. modelling.Barczyk J. 7. Electromechanical Transducers and Wale Filters. These programs allow you to create a virtual environment models. (2009). thermal and others. Konarskiego 18a Street. 2010.(2010). Romania Paper ID: D-5 DESIGNING OF ROBOTIC PRODUCTION LINES USING CAX SOFTWARE Andrzej Wróbel & Paweł Langer Institute of Engineering Processes Automation and Integrated Manufacturing Systems Faculty of Mechanical Engineering.. 44-100 Gliwice.. and process design processing.5 it is program that allows 3D design. Silesian University of Technology. Combining the use of engineer‟s knowledge and software capabilities CAx type allows to introduce the concept of an integrated computerization of production of CIM (Computer Integrated Manufacturing).7-11 6. (2008). A. CAx. Silesian Technical University Publishing House 2. to define the kinematics some of the elements created using Siemens NX 8.pl Abstract: The main aim of the project was to show the possibilities what is offered by the use of modern CAx software in the design of manufacturing processes. and others (1985) Manipulators and industrial robots. Dzitkowski T. analyzes and simulation of the processes leading to the creation of the object. pp. 195 . The biggest advantage of using Software engineering is its extensive mapping capabilities reality in the virtual world.1317-1326.wrobel@polsl. 9. pages 393–394. Buchacz A. It was used to make a model of the station. Wróbel. Buchacz A. Silesian University of Technology Press. Vol. and processes leading to their formation. virtual space. Journal of Materials Processing Technology. Buchacz A. Computer aided of synthesis and analysis of machine‟s sub-assembly by graph and structural number‟s methods. (2012) Basics of of robotics. Slanic Moldova. Van Nostrand Key words: robots. Olszewski M. Quality and Innovation ModTech 2010. (1948). The result of this article is to design and simulation of robotic work station on the production line. Modelling of multilayer transducer by means of the graph and structural numbers method. andrzej. Romania 2010. piezoelectric. Knapczyk J (1999) Basics of robotics. 164-165. (2005) Modelling and synthesis of discrete – continuous subsystems of machines with damping. It was used to create a model of all design elements excluding the robot models and tools. Despite the high price of the same general software development costs are falling due to the reduction in the number prototypes necessary for the implementation of research. Wróbel A. The theory and elements of manipulators and robots. kinematic.There are two main programs apply into this project: a) Siemens NX 8. allows the use of computers to assist the design process. Vol. Mamaia. 5. 147-150 8. The use of virtual environments allows for significant speed up the design process and reduce its costs. Proceedings of The 14th International Conference Modern Technologies.. Płaczek M. Dymarek A. the ease and speed of modification of the model and ability to perform various analyzes.. Graphs and structural numbers in analysis and synthesis of mechanical systems. Electromechanical Transducers and Wale Filters. Mamaia. Vol.P. 147-150 7. Buchacz A. Dymarek A. rheological model. Wróbel A. Issues 2. material damping. 5. Płaczek M. The method of analysis of the considered systems will be presented.1317-1326. the vibration level sensors are used by practically all manufacturers of piezoelectric ceramic plates to generate and detect the vibration of the fork. pp.32. Utilitarian the scientific purpose of the project is to analyze and demonstrate possibility of applying the PVDF foil or any other belonging to a group of smart materials in industrial sensors.. Gliwice. Jamroziak K. Konarskiego 18a Street. Computer aided of synthesis and analysis of machine‟s sub-assembly by graph and structural number‟s methods. Gliwice. 9. Publisher Silesian University of Technology. 6. Volume 9. Silesian University of Technology. pages 393–394. modelling.. 17. Poland Corresponding author: Andrzej Wróbel. (1997). This approach is associated with a number of drawbacks. Buchacz A. (No. Białas. Given the fact that currently produced sensors should be characterized by high accuracy and reliability.7-11 4. Journal of Materials Processing Technology. using these sensors in moist materials is often the case that the material remains between the forks and at the same time causes a measurement error. pp. Dzitkowski T. 2005. 1). (2010). to determine the influence of the system‟s properties on these characteristics.. Bocian M. Powertrain and Transport Vol. 2010.(2008). Buchacz A. K. Identification of pierced materials characteristics in the aspect of selected degenerated models. Van Nostrand Key words: piezoelectric. This paper presents the issues of modeling and testing of flexural vibrating mechatronic systems with piezoelectric transducers used as actuators or vibration dampers.pl Abstract: Mechatronic systems with piezoelectric sensors or actuators are widely used because piezoelectric transducers can be applied in order to obtain required dynamic characteristic of designed system. Wróbel A. Mason W. Gliwice. pp. model. A. Volume 29. Buchacz A. Issue 1. (2008). started from development of the mathematical model. Modelling and synthesis of discrete – continuous subsystems of machines with damping. 169-176. Currently. analysis.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20.. smart materials. (1948). Buchacz A. 20-22 May.151-154 2. The approximate Galerkin‟s method in the vibrating mechatronic system‟s investigation.. It was proved that it is very important to take into consideration influence of all elements of analyzed system including a glue layer between piezoelectric transducer and mechanical subsystem. 196 . p. No 3. 3. (2010). Machine Dynamics Problems. It is indispensable to take into account geometrical and material parameters of all system‟s components because the omission of the influence of one of them results in inaccuracy in the analysis of the system. by setting its characteristics.(2010).wrobel@polsl. 25. pp. • Sensors have now produced two forks resonance. andrzej. 44-100 Gliwice. It is very important to use very precise mathematical model and method of the analysis of the system to design it correctly. Special Issue: 80th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM. Vol. References: 1. Modelling of multilayer transducer by means of the graph and structural numbers method. 164-165. 8... Wróbel. Slanic Moldova. Romania Paper ID: D-6 ANALYSIS OF POSSIBILITY OF APPLYING THE PVDF FOIL IN INDUSTRIAL VIBRATION SENSORS Andrzej Wróbel Institute of Engineering Processes Automation and Integrated Manufacturing Systems Faculty of Mechanical Engineering. (2009). and sometimes the need for intervention conservator. Romania 2010. use the calibration screw perform tuning fork resonance frequency and the frequency of an electronic circuit that generates vibrations. Quality and Innovation ModTech 2010. Proceedings of The 14th International Conference Modern Technologies. Silesian University of Technology Press. including: • The need to use several or several piezoelectric plates. Modelling and study of piezoelectric effect influence on the characteristics of mechatronic system. Homogenization of mechatronical systems in modeling piezoelectric layer. Journal of KONES. The plates are made of brittle materials which also causes crashes and damage • After laying the tiles in the so-called piezoelectric stack. Journal of Achievements in Materials and Manufacturing Engineering. with the increase in number of components is increased defect sensors. Such a solution also requires the modular components which create the modular machine are equiped with interfaces compatible one with another to facilitate their communication. Modular could be both mechanic elements.pl Abstract: Recently the number of designed modular machine was increased. Wacław Banaś. 197 . are shorter manufacturing times. Poland Corresponding author: Aleksander Gwiazda. Krzysztof Foit & Przemysław Hryniewicz Silesian University of Technology. This solution is for the producer more favorable than the construction of a large machine whose configuration must be matched to each individual order. equipment and production lines. The term modular machine is used to denote different types of machinery. The advantages of modular solutions are: simplification of the structure. Standardization and run of the entire modular machiine should be easier if standardized are individual modules. Modular communication interfaces should help to reduce the amount of wiring. Faculty of Mechanical Engineering. industrial robots. aleksander. The purpose for many manufacturers is the standardization of the components used for creating the finished products. which is particularly important for manufacturers. standardization of components. Agnieszka Sękala. in the event that any modifications machine changes its individual modules can be implemented in less time than would be the case. robotised workcell.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Modular designing is also the challenge for designers and the need for a new approach to the design process. longer production series and reduced manufacturing costs.gwiazda@polsl. there are many more. Key words: modular design. and drives. This purpose could be realized by the application of standard modules which could be combined together in different ways to create the desired particular construction as much as possible in accordance with the order. manufactured and used independently and production management task could be divided into subtasks. They could be also outsourced to an independent manufacturer. in addition to those mentioned above. to the starting process and to the exploitation process. The individual components of the machine could be designed. The paper presents an example of application the modular aproch to the proces of industrial robot design to make the proces of robootised workcell design and exploitation more flexible. This method of machine design is more and more popular because it allows obtaining flexible and relatively cheap solutions. Romania Paper ID: D-7 MODULAR INDUSTRIAL ROBOTS AS THE TOOL OF PROCESS AUTOMATION IN ROBOTIZED MANUFACTURING CELLS Aleksander Gwiazda. So it is worth to develop the concept of modularity in next areas of application. as well as control systems. 44-100 Gliwice. Institute of Engineering Processes Automation and Integrated Manufacturing Systems. the machine created a classic. Mamaia. In the ideal case each module has its own control system and the full functionality of the modular machine is obtained due to the mutual cooperation of all modules. which are created using modular elements. Konarskiego 18A. The advantages of modular design. Also. faster assembly process of the complete machine Additional advantages. which is of significance for subsequent servicing equipment. Mamaia. Romania Paper ID: D-8 OBJECT POSITIONING IN MAGAZINES OF ROBOTIZED WORKCELLS USING LABVIEW Przemysław Hryniewicz. The LabView program as well as the LabView Vision and Labview Builder represent the application that enables program the informatics system intended to process and product quality control. Institute of Engineering Processes Automation and Integrated Manufacturing Systems. The production process is supervised by a team of specialists because any downtime causes great loss of time and hence financial loss.hryniewicz@polsl. rangefinders. This application could work in an automatic mode and in real time cooperating with the robot control system. Vision systems work well as sensors that control the production process itself as well as the sensors that control the product quality level.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. devices for data acquisition. Abstract: Key words: object positioning. and ultrasonic sensors. These systems consist of cameras. optical sensors. One of groups of sensors used in industrial applications are noncontact sensors. Sensors used in industry for tracking and supervision various stages of a production process make it much easier to maintain it continuous.pl During the manufacturing process. It allows to make the workcell functioning more autonomous. Through to the rapid development of electronics the vision systems were widespread as the most flexible type of non-contact sensors. przemyslaw. 44-100 Gliwice. robotised workcell. This group includes: light barriers. Faculty of Mechanical Engineering. Wacław Banaś. Aleksander Gwiazda & Krzysztof Foit Silesian University of Technology. devices for data analysis and specialized software. 198 . The paper presents elaborated application for positioning elements in a robotised workcell. Konarskiego 18A. Labview. each performed task is previously developed and adapted to the conditions and the possibilities of the manufacturing plant. Poland Corresponding author: Przemysław Hryniewicz. vision systems. Basing on geometric parameters of manipulated object or on the basis of previously developed graphical pattern it is possible to determine the position of particular manipulated elements. Agnieszka Sękala. Institute of Engineering Processes Automation and Integrated Manufacturing Systems. due to the high complexity of the issues needed to be taken into account in the process. The industrial robot FANUC AM100iB is an object of authors‟ interest. Mamaia. Romania Paper ID: D-9 ADAPTIVE IDENTIFICATION OF TRANSFORMATION OF THE LOCAL COORDINATE SYSTEMS OF THE ROBOT FANUC AM100IB Adam Cholewa 1. Jerzy Świder 1 & Adrian Zbilski 2 1 Silesian University of Technology. The article describes the validation procedure of the local coordinate system transformation in the developed numerical model of the robot Fanuc AM100iB with the position and orientation observed for the parts of the real robot. Poland 2 DRÄXLMAIER Group. Key words: industrial robot. there is a need for adequate research on the energy consumption of machines and the most important factors in this respect. handling system. Gliwice. Konarskiego 18a. 44-100. transport system. before preparing of such dependences. These modifications allowed achieving full compliance of position and orientation of the local coordinate systems between the numerical and analytical model of the robot Fanuc AM100iB. numerical model. Wincentego Pola 21. During the construction of a numerical model of the robot the orientation of the local coordinate systems was assumed taking into account the direction of rotations in the real robot and with respect to modified Denavit-Hartenberg notation. However. Gliwice.pl Abstract: Automated transport and handling systems.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. 44-100. 199 . Engineering Department. Development a numerical model of the analyzed object makes conducting this type of research easier. In this study a non-invasive method for measuring the process parameters of the robot such as voltages and currents of the supply at all robot axes was developed. it's necessary to develop algorithms that allow setting a unified form for selection of the appropriate values. in particular industrial robots are not programmed and utilized in accordance with the criteria of minimizing energy consumption.cholewa@polsl. adam. with the possibility of synchronous acquisition of data from the axes drives encoders. energy consumption. For efficient selection of kinematic parameters for the working parts of the machines. FANUC. Poland Corresponding author: Adam Cholewa. The validation procedure of the model in the indicated range was made possible due to specialized and unique measuring equipment and due to the development of non-invasive measurement method for experiments on a real object. while others perform some operations on this object. object. krzysztof. cooperation. As a result. Aleksander Gwiazda. Romania Paper ID: D-10 MODELLING OF COOPERATING ROBOTIZED SYSTEMS WITH THE USE OF OBJECT-BASED APPROACH Krzysztof Foit. There are also differences in the amount of information held by the cooperating manipulators‟ controllers in each of the cases. in order to ensure their proper cooperation. because the robot manufacturers do not disclose the details of the control algorithms of manipulator axes. from a perspective of several cooperating robots in a common work space. coordination of arms is provided by master control system.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. model. Poland Corresponding author: Krzysztof Foit. but also right coordination of the motion. there is a situation that requires not only adequate precision and the proper sequence of arm movements. An important part of this process is the communication between such understood objects. during modelling the complete robotized workcell. Konarskiego 18A. Agnieszka Sękala. In the case of dual-arm manipulators. it is sufficient to create an abstract model of cooperating machines in the form of objects. as well as by increasing the use of dual-arm robots that mimic manipulative skills of human hands. The approach presented in this paper is not limited to the robots. This is manifested through the involvement of a number of manipulators working on the same detail. Abstract: Key words: robot. Mamaia. Moreover. and the second one. but could be also used in a wider range. Wacław Banaś & Przemysław Hryniewicz Silesian University of Technology. represented in the form of object-oriented models. It is hard to deal with this problem. Both cases could be primarily distinguished by the used control algorithm. This paper focuses on the description of the cooperation between the two robots. 44-100 Gliwice.pl In today's robotized manufacturing systems the emphasis is placed on the simultaneous operation of industrial robots. Faculty of Mechanical Engineering. Institute of Engineering Processes Automation and Integrated Manufacturing Systems. In the case of two manipulators. which are controlled independently. where several manipulators work with the object. the two situations should be distinguished: the first one. when one of the robots holds the element and adequately changes its position.foit@polsl. Making the assumption that in each case the movements of the manipulators‟ arms are determined by the control program and can not be automatically modified. the coordination of motion requires respective communication between the controllers of each arm. which (among other things) prevents collisions between individual links of the kinematic chains of manipulators. This task requires that these objects can use some form of “communication protocol” and be able to collect information about its environment. A possible solution is to limit the interpenetration of workspaces of the cooperating manipulators to a tool (gripper) and the adjacent link of cooperating manipulators. A major problem in this case is the possibility of collision between the elements manipulators. 200 . which is positioned and fixed in a some plane. robotized cell. who performs his tasks in a particular environment. It is therefore important to treat the robot in a similar manner as the worker. Among all the machines involved in the manufacturing process. machining parameters. holds. Poland Corresponding author: Krzysztof Foit. It is therefore apparent that the description of the robot in a manner similar to other machines. 201 .). applying adhesives and sealants etc. which takes into account all the machines and has the form of an object-oriented database. manufacturing system.g. Wacław Banaś. technical data. The created model is then confronted with the other possible descriptions. Mamaia.pl Abstract: The practical ways of the design and management of the production process need an effective description method of all equipment involved in the analyzed process. object‟s reorientation.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. and even (recently) performing simple machining processes. the robot also performs additional activities connected with supporting storages of manipulated objects. etc. etc. its placement. Key words: robot. measuring stands. This complexity is reflected in the realization of elaborated tasks – involving handling. One of the possible approaches to this problem is to treat the robot as an object. Konarskiego 18A. each field (or record) of such a database may contain only the properties of an object (such as name. there are tasks associated with automatic tool changing and manipulating with the equipment mounted on the wrist of the robot. etc. idle time. which are mainly static values. Faculty of Mechanical Engineering. This allows both: to describe certain operations performed on the object. This paper focuses mainly on the definition of the object as the model of the robot. painting. while preserving a brief description of each of them. in the sense often used in computer science.e. such as deburring. There are also posiibility to illustrate the interactions between different objects.foit@polsl. industrial robots are the most complex ones. Krzysztof Foit & Przemysław Hryniewicz Silesian University of Technology. object. i. Moreover. It should be noted that in the general case. grinding. virtual workspace. will deprive the description of the essential elements in the sense of performed operations. In this case.). transporting or orienting the objects in a work space. vision systems. the model in the form of a data record proves to be insufficient to characterize the essence of "employment" of the robot at the workplace. as well as describing the operations performed by the object. tools or grippers. The results can be further used to create the model of the complete manufacturing system. As the machine which is equipped with the programmable control system. Institute of Engineering Processes Automation and Integrated Manufacturing Systems. 44-100 Gliwice. in the form of a data record. Agnieszka Sękala. Some of them are also changing dynamically (e. model. Romania Paper ID: D-11 OBJECT AS A MODEL OF INTELLIGENT ROBOT IN THE VIRTUAL WORKSPACE Aleksander Gwiazda. krzysztof. The term "effective" should be understood in a manner that this description helps to build a database of all process components. waclaw. succeeding version of the designed production workcell contains more and more modular elements. during the designing of a flexible production line the ability to replace any robot. Thereby it would be presented the evolution of a workcell design beginning from the typical design and ending with the fully modular one. This paper presents the obtained design of several versions of the same production workcell. Romania Paper ID: D-12 THE MODULAR DESIGN OF ROBOTIC WORKCELLS IN A FLEXIBLE PRODUCTION LINE Wacław Banaś. Abstract: Key words: modular design. But this approach needs to apply the specialized informatics system. They are related the most often with the failure on an industrial robot. Poland Corresponding author: Wacław Banaś. manufacturing workcells. However. 44-100 Gliwice. 202 . Institute of Engineering Processes Automation and Integrated Manufacturing Systems. Mamaia.pl In the case of large-scale and mass production lines often the same model of an industrial robot is used in various places of the line and is intended to various task. Each. Agnieszka Sękala. Such situations are not frequent in production lines that are not
[email protected] International Conference Modern Technologies in Industrial Engineering June 17-20. It is also presented the guidance information about the designing and programming processes useful at each stage of analysed process. which is unrestricted. However. One of tools needed to realize this task is the elaboration of a base of modules and typical joint and mounting elements that could be utilised in the described designing process. Faculty of Mechanical Engineering. Konarskiego 18A. greatly increase the flexibility level of such line. In this way it could be possible to change any elements of such production system. industrial robots. fast and trouble-free. Krzysztof Foit. the replacement of one industrial robot to another is a long lasting and arduous process. It could be realized by modular design of the proposed production line. It requires stopping all the production line and sometimes even dismantling the whole workcell. Aleksander Gwiazda & Przemysław Hryniewicz Silesian University of Technology. waclaw. Konarskiego 18A. It handles also transport equipment and auxiliary stands. In the case of much higher capacity of the newly chosen robot it is also necessary to replace or rebuilt its foundation. among others. The proposed model of such designed manufacturing workcell could be easily extended to the workcell model in which it is possible to produce elements belonging the one technological group of chosen similarity level. In special cases. to check access to all required points. This replacement is particularly very expensive when it is realized during physical realization of a designed workcell. It is also important to show the method of determining the best location of robot foundation. Romania Paper ID: D-13 DETERMINATION OF THE ROBOT LOCATION IN A WORKCELL OF A FLEXIBLE PRODUCTION LINE Wacław Banaś. In this situation it is needed to include not only the robot replacement but also the redesigning of its fixing elements. Faculty of Mechanical Engineering. Using this approach it could be possible to present the designing process of an exemplar flexible workcell intended to manufacture two similar elements. Often succeeding changes of a workcell configuration are realized. The presented design method could also support the designing process of other robotised workcells. Sometimes. it is even necessary to replace the planned robot with a robot of greater range or of a different configuration type. Key words: workcell designing. They occur at the stages of visualization and simulation of robot program functioning. during the design phase.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. one should take into consideration elements which limit the ability of robot foundation. 44-100 Gliwice.banas@polsl. Aleksander Gwiazda. Poland Corresponding author: Wacław Banaś. 203 . during the design process. Institute of Engineering Processes Automation and Integrated Manufacturing Systems. Mamaia. the changes of robot location are necessary due to the limitation of access to its required working positions. This article presents and describes the parameters and elements which should be taken into consideration during designing robotised workcells. In particular.pl Abstract: Location of elements of a workcell is apparently an easy task but even during the designing of a workcell. in which is planned a production of one. industrial robots. The main idea bases on application of advanced engineering programs to adding the designing process. Krzysztof Foit & Przemysław Hryniewicz Silesian University of Technology. Agnieszka Sękala. simple element it is necessary. The robot in a workcell must handle both machine tools located in a workcell and magazines (input and output one). This paper includes the proposal of an agentbased approach for the integration of processes within the virtual enterprise. 44-100 Gliwice. The use of agent technology significantly speeds up the flow of information within the virtual enterprise. multi-agent systems. Faculty of Mechanical Engineering. gabriel. All of these factors entail. The aim of this approach is a flexible response and prevents situations that might contribute to delay of the production process. thereby generating unnecessary costs. Institute of Engineering Processes Automation and Integrated Manufacturing Systems. above all. gabriel. Faculty of Mechanical Engineering. 204 . Wacław Banaś & Anna Dobrzańska-Danikiewicz Silesian University of Technology. the coordination of components of a distributed system and providing the access to the required information. Poland Corresponding author: Gabriel Kost.kost@polsl. Gabriel Kost. which in turn results in production planning process based on incorrect and outdated data. Institute of Engineering Processes Automation and Integrated Manufacturing Systems.pl Abstract: Present market conditions causes that modern control systems of robotised manufacturing cells should be characterized by a much greater degree of reconfiguration. Paper ID: D-15 THE DISTRIBUTED AGENT-BASED APPROACH IN THE EMANUFACTURING ENVIRONMENT Agnieszka Sękala. as the consequence.pl The deficiency of a coherent flow of information from a production department causes unplanned downtime and failures of machines and their equipment. 44-100 Gliwice.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. The phenomenon of information distribution is one of the most important features of modern control systems. openness to emerging changes. e-manufacturing. robotic cells. Grzegorz Ćwikła & Gabriel Kost Silesian University of Technology. Konarskiego 18a. the additional difficulties associated with the process of decision-making. They concern. Poland Corresponding author: Gabriel Kost. Konarskiego 18a. agent. multi-agent systems. Romania Paper ID: D-14 THE ROLE OF MULTI-AGENT SYSTEMS IN ADDING FUNCTIONING OF MANUFACTURING ROBOTISED CELLS Agnieszka Sękala. Key words: robot.kost@polsl. self-organization and. Abstract: Key words: agent. Mamaia. among other. In the paper is presented the approach based on multiagent systems application for supporting the operation of robotic manufacturing cells. which will be models of industrial robot arms. They allow to convert a recorded schematic three-dimensional elements. Wacław Banaś. Accordingly.pl Process of workcell designing is limited by different constructional requirements. as mentioned previously. the base robot structural elements. 205 . They are related to technological parameters of manufactured element. inter alia. optimization. These models could be described as functional primitives that represent elements between components of the kinematic pairs and structural members of industrial robots. The results of such approach are individually designed workcell suitable to the specific location and specific production cycle. Abstract: Key words: Typification. aleksander. Konarskiego 18A. Mamaia. Poland Corresponding author: Aleksander Gwiazda. workcell design. The first of these databases includes kinematic pairs being the key component of the manipulator actuator modules. Institute of Engineering Processes Automation and Integrated Manufacturing Systems.simple or angular units. This type of kinematic pairs was chosen due to the fact that it occurs most frequently in the structures of industrial robots. Taking into consideration this it is important to elaborate the base of typical elements of a robot kinematic chain that could be used as the tool for building. in which it is possible to virtually track the operation of an industrial robot arm modelled in the system.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. the structural elements such as base. Using these elements it could be formed various production spaces (robotised workcells). it includes the first stage rotary pair of fifth stage. the base of the robot workscenes. Faculty of Mechanical Engineering. Romania Paper ID: D-16 CONSTRUCTION TYPIFICATION AS THE TOOL FOR OPTIMIZING THE FUNCTIONING OF A ROBOTIZED MANUFACTURING SYSTEM Aleksander Gwiazda. It includes elements of both simple and complex: simple models of technological equipment. This shows the complexity of the design-constructional process itself. Second base consists of structural robot elements therefore it allows for the conversion of schematic structures of kinematic chains in the structural elements of the arm of industrial robots. it is important to create a database elements. to specifications of purchased elements of a workcell and to technical characteristics of a workcell scene. Agnieszka Sękala. Last database is a database of scenes. 44-100 Gliwice. As the part of the work is created database with following elements: the base kinematic pairs. It contains. Changing this parameters one must rebuild the whole configuration of a workcell.gwiazda@polsl. models of the obstacles and like that. Virtual modeling of kinematic chains of industrial robots requires several preparatory phase. stiff members . Firstly. conveyors models. Krzysztof Foit & Przemysław Hryniewicz Silesian University of Technology. The article presents the use of multi-valued fuzzy logic and binary logic. Solutions based on automatic optical inspection. are a prospective research area. mechanics. Radom. machine vision. use of apriori knowledge. at many production stages. are widely used in industry. and their optimization. in real conditions are presented. The article is an important source of knowledge concerning the design of intelligent systems supporting engineering works. fuzzy logic. Poland Corresponding author: Tomasz Wójcicki. and ability to conduct simulations.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20.wojcicki@itee. constituting parts of automatic optical inspection systems. A characteristic feature of the developed model is its fast adaptation to different types of objects inspected. due to a number of advantages. designing. by ensuring the supply of the knowledge base of the expert system. or anywhere high performance and repeatability are required. Romania Paper ID: D-17 MODELLING AUTOMATIC OPTICAL INSPECTION SYSTEMS USING FUZZY LOGIC Tomasz Wójcicki Institute For Sustainable Technologies – National Institute. quality control. by sets of logical rules. 6/10 Pulaskiego Street. Abstract: Key words: expert systems. Parameters characterizing vision systems depend on a number of factors that affect efficiency of exposing essential features of objects in the recorded images undergoing inspection. 26-600. eg. aimed at automation of the selection of parameter values of the vision systems. like reduced development time. and computer science. holistic modelling of complex technical issues.pl The paper presents an original model aimed to support activities related to the design of automatic optical inspection systems of surfaces. Problems associated with intelligent support for design of automatic systems. The results of empirical studies for selected configurations.radom. vision systems. and contactless measurement methods are needed. including automatic optical inspection. the structure of the developed model and its main components. and computer simulations for effectively supporting decision making processes. electronics. 206 . in this case teams of designers with extensive knowledge on automation. tomasz. The author discusses theoretical foundations. represented by the model. as part of the author's expert system dedicated to support decision-making processes related to the design of vision systems. The proposed solution is the result of analyses of available numerical models. and groups of objects undergoing optical inspection that confirm usefulness of the developed solution. Efficient design also reduces costs associated with the need to employ qualified staff. Mamaia. artificial intelligence. Mamaia. which was the basis of an elaborated driving simulator for people with disabilities (Fig. strain and displacements distribution that occur in the analysed elements of the parallel robot.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Institute of Engineering Processes Automation and Integrated Manufacturing Systems.pl The article presents an example of stress analysis using the FEM method in which to determine the boundary conditions are used the results of a dynamic analysis. Abstract: Fig. Konarskiego 18A. Faculty of Mechanical Engineering. FEM method. Then were selected such robot positions in which these effects were greatest. b) photos of the realized simulator Key words: Stewart platform. Analysis considered components of a Stewart platform. Poland Corresponding author: Piotr Ociepka. determined during the earlier dynamic analysis of the platform movement. The analyses were performed in the Siemens PLM NX 8. The study made it possible to correctly choose the robot components and apply them to the construction of a driving simulator for the disabled persons. The dynamic analysis was conducted using the Motion Simulation module and the RecurDyn solver. Romania Paper ID: D-18 STRESS ANALYSIS OF PARALLEL ROBOT COMPONENTS IN PLM SIEMENS NX 8.). were introduced into the analysis process. The next were analysed the various movements of the robot platform in order to determine the worst impact of forces on the investigated elements. In the next step were performed stress analysis in the Advanced Simulation module concerning the such determined elements. Then boundary conditions. car simulator.5 program. In this module was defined kinematic constraints that occur in the analysed mechanism of the parallel robot and next dynamic analyses were performed to determine the maximal forces that could affect the investigated elements. Stewart platform: a) CAD model.5 PROGRAM Piotr Ociepka & Krzysztof Herbuś Silesian University of Technology. On the basis of CAD models of the created parallel robot components it was generated a finite element mesh. 207 .ociepka@polsl. 44-100 Gliwice. For calculation the NX Nastran solver was used. The stress analysis helped to determine the stress. piotr. stress analysis. high-accuracy computer-aided design.1. resistors. the “end-of-train” red headlights and even the destination plates. sound modules. interior lighting. Oradea. Department of Machine Manufacturing Technology. required by the miniaturization of the model trains. Also. The light module is fed with electricity by means of wheel current collectors. Str. 407035. the pre-programmed SMD microcontroller is the most important component. Romania 2 Tehnologistic SRL.Universităţii No. Abstract: Key words: train. engineering and machining etc. diodes and other electronic components. these lights should be independently switched on and off. Romania Paper ID: D-19 DESIGN AND REALIZATION OF LIGHT MODULES FOR MINIATURE MODEL PASSENGER COACHES Mircea-Petru Ursu1. 208 . Mamaia. they should replicate the functioning of good/faulty fluorescent tubes and/or incandescent bulbs. All these functions can be achieved in the digital command control (DCC) system. DCC. PCB. In order to avoid flickering caused by faulty electrical contacts between rails. str. because the lights should illuminate each compartment. programmable. transistors. the miniature trains are fitted with additional components. plastic etc). Apahida.Libertății nr. On the printed circuit board (PCB) of the light module. smoke generators. 410087. This paper presents the design and realization of such a light module for miniature model passenger coaches. The design and realization were completed by means of computer-aided technologies. which also convey the digital command signals.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. such as direction-dependent headlights. flexible printed circuit boards. the corridors. miniature. wheels and collectors. Because of their minute dimensions. and contains SMD low-current super-miniature LED‟s. Traian Buidoş 1 & Gyorgy Albert2 1 University of Oradea. spark simulators. the service areas.ro Modern miniature trains are made of high-quality materials (metal.35A. SMD. remote-controlled coupling devices etc. This light module can be fitted into almost all kinds of four-axles H0 (1:87) model miniature passenger coaches. This light module is programmable on-the-rails by means of any digital command station. mpursu@uoradea. processed by means of highquality technologies. greatly improving their appearance on the rails. LED. when possible. The interior lighting of the model miniature passenger train coaches require very much attention. In order to offer a better life-like impression. the design of the light module allows fitting with electrolytic buffer capacitors. and the “end-of-train” headlights should be able to be switched on only when the coach is the last one of the train and should respect the direction of travel. Romania` Corresponding author: Mircea-Petru Ursu. as it holds the DCC decoding algorithm and is able to independently drive all the light outputs according to the commands issued by the user via the digital command station. all these features require also high-tech materials and procedures. such as SMD (surface mounted device) active and passive electronic components. Business Intelligence. Mamaia. Romania Abstracts-Section E Technology Transfer: Knowledge Management Case Studies. Business Process Modeling and Analysis. Security in Business Process 209 . Knowledge Portals. Knowledge Communication. Innovation and Engineering Education.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Process Planning and Flexible Workflow. Innovating by co-creation has been appreciated to contribute to the value creation process. has its roots in several complex initiatives in the past. In order to understand which elements in the co-creation process determine the success of the products or which phase or instrument enriches the company with valuable input in order to develop products. related to development of new products. Following the principles of disruptive innovation. innovation model. we have chosen to conduct a research in form of a study case showing the steps that the company has taken in order to involve its customers to contribute to the development of new products. iuliana. Iasi. organizational approach. innovation model. 700050. emphasizing its innovation efforts. co-creation. Taking these into consideration we will continue by analyzing the mission and vision of Procter & Gamble Company. the structure and the evolution of products. 210 . Department of Engineering and Management. 700050.avasilcai@gmail. So. we have taken a look at P&G‟s co-creation platform available under the name of connect + develop. Department of Engineering and Management. Abstract: Key words: innovation process. Romania Coresponding author: Iuliana Georgiana Agafitei. such as Procter & Gamble. initiatives that has in their central attention the customer. In order to point out all these aspects we will begin the paper by looking at what innovation management theory is suggesting. 28 Mangeron Str. Mamaia. Paper ID: E-2 PROCTER & GAMBLE CASE STUDY: INNOVATION STRATEGY OVER YEARS Iuliana Georgiana Agafitei & Silvia Avasilcai “Gheorghe Asachi” Technical University of Iasi.agafitei@gmail. Since innovation through cocreation is a new approach to local market. the CEO of the company has set the goal for the company as to produce at least 50% of the innovations from external ideas. Apart from this. the aim of this paper is to continue to analyze the tools and the approach that P&G has taken in order to come up with new ideas from outside the company. we would like to emphasize the innovation strategy and tactics that the company has followed historically in order to grow the role of working together with customers and launch products that were developed through collaboration. Romania Paper ID: E-1 EMPIRICAL RESEARCH ON INNOVATION THROUGH CO-CREATION: PROCTER & GAMBLE CASE STUDY Silvia Avasilcai & Iuliana Georgiana Agafitei “Gheorghe Asachi” Technical University of Iasi.. organizational approach.com The purpose of the present paper is to analyze how product innovation process has been organized by a multinational company. Abstract: Key words: innovation process. Iasi.. Romania Coresponding author: Silvia Avasilcai. silvia.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. 28 Mangeron Str. co-creation. The approach that the company has nowadays.com The first part of present study case has pointed to the efforts directed by Procter & Gamble over time to keep close to its customers and the manner in which management has supported innovation within the company. technical overhauls. capital repairs. with specific interface and forms for the main four user-groups. Evidently the system is based on the specific maintenance documents like: annual repairs plans. The access to the Database will be implement via a webservice. . The main objectives of the introduction of IT&C and repairs planing. flexible and user-friendly. The editing and visualizing of data will be realised by user-friendly forms.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. databases.without affecting production. intervention team-which will give a feedback regarding them. . Faculty of Science and Engineering. Romania Paper ID: E-3 INFORMATION SYSTEM FOR THE MANAGEMENT OF MAINTENANCE OPERATIONS IN SERIES PRODUCTION LINES BY USING MYSQL DATABASES IN ORDER TO OPTIMIZE INTERVENTIONS AND REDUCE STANDSTILL TIME Gheorghe Marc1 & Paul Kela2 1 “1 Decembrie 1918” University of Alba Iulia.increased realibility of the whole system. Alba Iulia. if necesarry. who will program the specific repairs which need to be made. The proposed solution is focused on a Information System. Blvd. Iorga. Abstract: Key words: series production lines. Mamaia. which of course have a bad influence on the production flow. maltfunction repairs and modernizing of equipment. scheduling of overhauls at the most oprtune moment-based exactly on the functiong hours. based on accumulated data and equipment functioning hours.minimizing stanstill time. Romania Corresponding author: Marc Gheorghe. stanstill time. The database will be SQL type given the fact that MySQL is the most popular Database Management System and it‟s free.ro The present paper treats the problematic aspect of preventive general maintenance and taking in consideration all the available and posible methods to avoid maltfunctions and long. 515900. No.reduced costs for mandatory repairs. N.better spareparts management.reduced energy consumption by increasing the efficiency of the system. . production supervisor-who can notify the best time for the interventions without afecting production. based on php. 11-13. All of these elements are integrated in a Database which can be accesed by the chief of the maintenance workshop. Romania 2 StarTransmission. . establishing of the overhaul team. specific for each machine. ghemarc@yahoo. managing and preparing the necesarry spareparts which the team needs. logistics personell. which allows centralised view of working hours intervals. useless. 211 . current repairs. are: . maintanance. Slovenia Corresponding author: Elvis Hozdić. Aškerčeva 6.physical production systems in smart factories providing management with real-time. Modern concepts of production systems require vertical and horizontal integration of all participants in the production process. which is one of the fundamental principles of a new era in the sphere of industrial production. information . wireless networks. This integration determines the foundation of a new.0. ehozdic@yahoo. virtual components into a single system called cyber . but also beyond its borders. the Internet.time control. Factories have become more flexible than ever to complex modern market turbulence. and achieves integration between the various industrial and non-industrial partners who build dynamic . Implementation of cyber . The potential for savings and innovation in these production systems and production operators is huge. Romania Paper ID: E-4 SMART FACTORY FOR INDUSTRY 4. production networks. Smart factory is a production solution in a flexible and efficient way should be to meet the needs of today's market . This type of integration. abstract. linking the physical components of the production system and digital. smart manufacturing.physical production systems. Systems are the backbone for the smart factory.communication technologies. Industry 4. radical change in the mode of production by German industrialists called the industry is 4. adaptive and evolutionary and self organizing. Faculty of Mechanical Engineering. and very often and virtual organizations .0 Elvis Hozdić University of Ljubljana. 1000.0 212 . Mamaia. In this.com Parallel to the development of information . Abstract: Key words: cyber . Cyber. Department of Control and Manufacturing Systems.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. structuring the smart factory. This not only makes production faster and in accordance with the specific requirements of individual customers. the smart production environment.physical production systems. developed and industrial production which experienced a strong and profound changes. real.physical systems of production will be structured so that they can respond to almost any change in the market in time within really smart factories.communication technology. but also allows to production processes within the company are optimized through a network of global cooperation. Ljubljana. here I procured certain agendas and regulation that must be conducted in organization or on working floor for the sustainable development of it. Binding the structure of emotional intelligence embedded in workplace. Mamaia. Workplace maintenance problems are more likely to be found entrapped in major traces like worker behaviour. India B. next the context of paper is directed to the agenda building in workers. mainly in terms of integrity. While analysing this strategy building. MS. In the following paper. Romania Paper ID: E-5 STATISTICAL ANALYSIS OF LABOUR BEHAVIOUR AND WORKPLACE MANAGEMENT Shrirang R. singular firm. Chaudhari Ranishri Malviya Garden Morshi District. worker-work-process relation.E. Service and Process. Chaudhari. By using various assignments and planning methods. I firstly introduce the human and service relations in context of inter disciplinary relation between labour-serviceagenda-process. Furthermore after having a look on sustainable improvement in workplace circumstances. In this structure agenda is the equally merge prospective. Abstract: Key words: assignment and implementation of emotional intelligence. India. Nasik.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. So the rest of the entire strategy builds on the tri-pin of Labour. assignment and implementation of emotional intelligence in opt of personal and social competencies of worker along with the potential maintenance of workplace is introduced on some statistical data and graphs. ethics and sense of responsibility. intension manifesto and orientations. shrirangchaudhary@gmail. Thus this is the overall structure of research work which hopefully adds values to the test bench. labour behaviour and productivity index. MECHANICAL (SGBAU)/ PRMIT & R Corresponding author: Shrirang R. disruption. a certain statistical analysis is done on the basis of readings and surveys conducted in Neelay Group of Industries. And as these concepts established the disruption methodology of continuous development is evolved.Amravati MS. emotional intelligence of workers and human services relations. 213 . For this purpose the conceptual understanding of „Next is Customer‟ strategy is carried out and on the basis of this the concept of „Singular Firms‟ is developed and established simultaneously. to give a deep look on these workplace penetrating problems.com Over discrete factors workplace management and maintenance remained an important endeavour for decades. Abstract: Key words: environmental management. competitive advantage. The integration of stakeholders. Firm's resources encompass the result of proactive environmental strategies (for example the continuous innovation or the management of stakeholders) and of social reputation and legitimization. There are two distinct orientations of the environmental management that appear in companies: the model of compliance and the strategic model. based on its relationship with the natural environment as a source of competitive advantage. Mamaia. The firm's capabilities should be considered a mediator variable. Blvd. but could also lead to the development of specific capabilities for that firm. Department of Engineering and Management. capabilities. The textile industry was chosen to test the hypothesis because this industry has evolved as a global. and a hundred answers were received. Iasi. The results confirm our hypothesis. Christmann (2000) and Wagner (2005) identify the importance of development of superior resources and capabilities for a firm. abutnariu@tex. Mangeron. Romania Paper ID: E-6 THE RELATION BETWEEN PROACTIVE ENVIRONMENTAL STRATEGIES AND COMPETITIVE ADVANTAGE Anca Butnariu & Silvia Avasilcăi "Gheorghe Asachi" Technical University of Iasi. there are few scientific works that argument the effectiveness of these policies. that leads to increased marketing and financial performance. fragmented and complex system. The capacity to innovate makes firms capable to integrate. consider that proactive environmental management requires changes in procedures and operations and clearly represents an organisational competence once it requires the complex coordination of human and technical abilities in order to reduce the environmental impacts and simultaneously to maintain or increase firm's competitivity. Aragon Correa et al. using the research method of survey. develop and reconfigure its competencies. Aragon-Correa and Sharma (2003). Romania Corresponding author: Anca Butnariu. in 1995) are not only the expression of its choices regarding the environmental strategy. especially of those who have an interest on the environmental protection. Miles and Covin (2000) have studied the creation of competitive advantage based on reputation and concluded that there is a strong correlation between the high environmental performance and the reputational advantage. 700050. capacity to innovate and learning. Nevertheless.ro The investments of a firm in five types of resources (according to Hart's theory. In this paper we proposed the hypothesis that the capabilities developed by the environmental investments will probably directly lead to competitive advantage. The proactive environmental strategies lead to achievement of capabilities as: integration of stakeholders.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. In the second stage we have tested this hypothesis. helps the firm to build its legitimacy for the aspect of environmental proactively. 59A. No. that in order to reduce the social and environmental impacts along its products' life cycle uses an increasing number of corporate responsibility policies. A questionnaire was sent to managers in textile Romanian industry. 214 .tuiasi. 29. Business venture creation has some key elements as attitude towords entrepreneurship. to find in the literature valid models that can be used further in research or that can be applied into real business environments. necessary resource planning and the stage development of business venture. Romania Corresponding author: Cosmin-Mihai Nacu. where we identified and detailed every component of our model. Blvd. The new model is based on theoretical aspects of business venture creation. entrepreneurial firm. to be financially independent or simply because they don‟t find a job. It is very important for researchers from entrepreneurial domain. cnacu@tex. which basicly validates the new model of the entrepreneurial firm from technological entrepreneurship domain. we discover and analyze existing models of entrepreneurial firm and we compare them to see the similarities and the differences. the key elements of technological innovation process are the source of business idea. The key elements of technological entrepreneurship process are innovation and prototyping and. the design and accomplishment of final product and sellings. After the realization of the proposed model. No. 215 .tuiasi. The most important characteristics. business environment. Based on existing models of entrepreneurial firm and starting from the technological entrepreneurship process and its components. of technological entrepreneurship process and of innovation process. will form the new conceptual model of entrepreneurial firm. it is tested through a case study. we analyze the literature. Iasi.ro In the current context of economic and technological development. together with our point of view. technological entrepreneurship process. it is feasible. entrepreneurship is a concept that we hear about increasingly more often. also. through the application of the model on a real entrepreneurial firm. So. More and more young people are taking the risks and they are using their available resources in order to start their own business. from business domain and not only. case study. Abstract: Key words: Entrepreneurship. Romania Paper ID: E-7 A MODEL OF ENTREPRENEURIAL FIRM Cosmin-Mihai Nacu & Silvia Avasilcai “Gheorghe Asachi” Technical University of Iasi. Mangeron. The purpose of this research paper is to develop a conceptual model to describe more realistic and more detailed. to becom their own bosses. 700050. an entrepreneurial type that combines innovation and creativity with business environment to give more value to our society. the entrepreneurial firm from the technological entrepreneurship domain. elements and foctors of the compared models. Department of Engineering and Management. Mamaia.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. intention to develop a new business idea. validated through the case study. we define the basic structure of the new and emproved model of entrepreneurial firm. One of the branches of entrepreneurship in continuously developement is technological entrepreneurship. com The terms of creativity. Mamaia. Either customers. As methodology approach.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Blvd. developing and creating new products under different brands. Mulino Bianco was first launched in Italy.0. services or company‟s productivity. it has been shown that their ideas sketch their needs and wishes. or business as a whole. being one of the value brands of Barilla Group. and co-innovation are more and more used nowadays. and commercially sold. creativity. a case study about Mulino Bianco was done. by default. being asked to design and share their concepts / views for new products. represent an important way of value creation. or stakeholders‟ involvement into innovation activities. Department of Machine Manufacturing Technology. co-innovation. No. different size businesses gather ideas for innovation from customers / stakeholders by involving them into the early stages of the innovation process. One of the tools used for this is the Internet Toolkit and Web 2. co-creation. While co-creation offers the possibility and encourages a more active involvement from the customers to create value rich experiences. but also customer-based proposals that describe how ideas can be transformed into marketable products. to grow a business. of actions‟ performance that increases the worth of goods. 216 . according to the Italian definition and classification. this being one of the many definitions found in the literature. Mangeron. More and more. Actually. which we can say. creative industries. The aim of this paper is to explore and identify the involvement of stakeholders in Mullino Bianco‟s product development or improvement through creativity and innovation. 700050. 59A. by means of which customers are being invited to participate in competitions. Even though Barilla Group‟s Research & Development department does its job very efficiently. creative industries. current and potential. and value creation. or to get involved in by voting those ideas they best like and would love to find them on markets. innovation. innovation is responsible for the little improvements made for a better life. innovation. Romania Paper ID: E-8 CREATIVITY AND INNOVATION BY EMPOWERING THE CUSTOMER: THE CASE OF MULLINO BIANCO (A) Silvia Avasilcăi & Adriana Bujor “Gheorghe Asachi” Technical University of Iasi. to improve products. in general. The term of creative industries refers to those goods that can technically be reproduced. lately a key strategy for the Group and for Mulino Bianco. industrially produced. adbujor@gmail. it belongs to creative industries: industry of food and taste. is customers‟ pro-active involvement in products‟ development or creation. and the foreseen result is highlighting the Nel Mulino Che Vorrei platform‟s features for consumer‟s engagement in the value creation and co-creation. Romania Corresponding author: Adriana Bujor. not only need information. and have been described as “need information”. Abstract: Key words: co-creation. Iasi. through their creativity. Customers and stakeholders. which represents. also offer ideas that have been called “solution information”. services. to grow a business. not only need information. through their creativity. co-creation. innovation is responsible for the little improvements made for a better life. and the foreseen result is highlighting the Nel Mulino Che Vorrei platform‟s features for consumer‟s engagement in the value creation and co-creation. creativity. services or company‟s productivity. One of the tools used for this is the Internet Toolkit and Web 2. innovation. or stakeholders‟ involvement into innovation activities. Romania Corresponding author: Adriana Bujor. and have been described as “need information”. industrially produced.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. While co-creation offers the possibility and encourages a more active involvement from the customers to create value rich experiences. 700050. to improve products. More and more. co-innovation. creative industries. it has been shown that their ideas sketch their needs and wishes. which represents. but also customer-based proposals that describe how ideas can be transformed into marketable products. and value creation. innovation. Mamaia. Even though Barilla Group‟s Research & Development department does its job very efficiently. current and potential. and commercially sold. or business as a whole. in general. Actually. according to the Italian definition and classification. by means of which customers are being invited to participate in competitions. Either customers. this being one of the many definitions found in the literature. Blvd. Iasi. represent an important way of value creation. Abstract: Key words: co-creation. No. is customers‟ pro-active involvement in products‟ development or creation. The aim of this paper is to explore and identify the involvement of stakeholders in Mullino Bianco‟s product development or improvement through creativity and innovation. Mulino Bianco was first launched in Italy. Mangeron. creative industries. it belongs to creative industries: industry of food and taste. As methodology approach. Department of Machine Manufacturing Technology. also offer ideas that have been called “solution information”. 217 . Romania Paper ID: E-9 CREATIVITY AND INNOVATION BY EMPOWERING THE CUSTOMER: THE CASE OF MULLINO BIANCO (B) Adriana Bujor & Silvia Avasilcăi “Gheorghe Asachi” Technical University of Iasi. The term of creative industries refers to those goods that can technically be reproduced. of actions‟ performance that increases the worth of goods. which we can say. adbujor@gmail. a case study about Mulino Bianco was done. or to get involved in by voting those ideas they best like and would love to find them on markets. being asked to design and share their concepts / views for new products. services. different size businesses gather ideas for innovation from customers / stakeholders by involving them into the early stages of the innovation process. by default.0. being one of the value brands of Barilla Group. developing and creating new products under different brands. and co-innovation are more and more used nowadays. 59A. lately a key strategy for the Group and for Mulino Bianco.com The terms of creativity. Customers and stakeholders. the current research approach highlights the importance of strategically integrating the human resource management in order to achieve high sustainable performance. 218 .tuiasi. Iasi. focusing on identifying the most important categories of contextual variables which influence employees‟ engagement at work and their work performance.ro Recent studies regarding human resources motivation and human resources performance management emphasized the role of the organizational context in the current dynamic business environment affecting the employees‟ work in organizations. through enhancing the level of employees‟ motivation. grusu@tex. Blvd. the current study emphasizes a systemic model of analysing motivation and human resources performance in the organizational context. organizational performance. The research consisted of analysing and critically reviewing the current literature of strategic human resource management. 700050. but also the influences of employee relations climate and organizational culture as predictors of enhancing human resources motivation and performance. In conclusion. the research emphasizes the role of the strategic human resource management practices as being of the outmost importance in influencing employees‟ motivation and performance. Thus. emphasizing the role of the link between human resources management and performance through the High Performance Work Practices considered as a system which contribute to company performance by motivating employees to adopt attitudes and desired behaviors for achieving the strategic objectives of the organization. the current study highlights the relationships of outmost importance between contextual factors influencing employees‟ motivation. Mamaia. the research framework provides the relationships regarding the relevant contextual dimensions influencing human resources motivation correlated with employees‟ performance. employees‟ engagement. Thus. Moreover.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. The current paper aims to develop a research framework. employees‟ motivation. Department of Engineering and Management. Romania Corresponding author: Gabriela Rusu. based on 3C heuristic model of motivation developed by Kanfer. Chen and Gilad. Romania Paper ID: E-10 ORGANIZATIONAL CONTEXT – RELATIONSHIPS WITH HUMAN RESOURCES MOTIVATION AND WORK PERFORMANCE Gabriela Rusu & Silvia Avasilcai “Gheorghe Asachi” Technical University of Iasi. high work performance and sustainable organizational performance. strategic human resource management. The results of the paper indicate a strategic approach of the human resource management system which outlines the human resource practices as the main factor for increasing human resources performance in organizations. No. human resource practices. Abstract: Key words: organizational context. outlining the dynamic and transformation of the employees‟ motivation at the time they reach in the company. and the strategic human resources management developments. 29. resulting in employees‟ engagement. the current paper provides relevant insights for managers to foster the organizational positive outcomes. Accordingly. Thus. which foster job performance. Mangeron. affected by organizational processes changes materialized in organizational context influences on human resources motivation. identifying the most important contextual variables and taking into account the interactionist perspective person-context. through employees‟ engagement which generates sustainable organizational performance. online platforms. the paper is focused on identifying the company‟s concerns regarding the competitive strategies. innovation. Moreover. Thus.
[email protected] Customers‟proactive engagement in the innovation process represents a business priority for companies which adopt the open innovation business model. vision. involving customers in sharing their ideas at festivals. one of the most successful and active company in engaging customers in submitting ideas and creative solutions for developing new products and new tehchnologies. 219 .tuiasi. outlines the most important policies and strategies of the comapny. Department of Engineering and Management. In addition. Blvd. which aims to highlight the open innovation business model of the LEGO Group. its mission. highlighting also the most important activities developed by the management team in exploring the new opportunities which may occur on the market. Romania Corresponding author: Gabriela Rusu. In such a context. it is of outmost importance for companies to use the online environment and social media. multiple contacts with the internal and external environment. in order to create an interactive and open dialogue with customers and other important external stakeholders. 700050. the organizational structure consisting of flat structures which facilitate the orientation of the team management on the innovation process and the proactive involvement of consumers and other external stakeholders in product development. customers‟ engagement. through online platforms. emphasizing the innovation terms which guide the actions and objectives of the LEGO Group. emphasizing the role of engaging customers and other external stakeholders in the co-creation of value. No. Abstract: Key words: co-creation. the company aims to foster innovation maintaining a clear vision. Also. Consequently. value creation. the success and failures.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. emphasizing also the concerns of the LEGO Group for a long-term orientation strategy which implies developing innovative products. and the flat structures which enable the communication between innovative management teams and top management team. Iasi. made by ecological materials. Mangeron. the current paper is based on a case study approach. participating to discussions of adult fans on web-based platforms and establishing partnerships with the external stakeholders in order to create value. 29. Romania Paper ID: E-11 INNOVATION MANAGEMENT BASED ON PROACTIVE ENGAGEMENT OF CUSTOMERS: A CASE STUDY ON LEGO GROUP (A) Silvia Avasilcai & Gabriela Rusu “Gheorghe Asachi” Technical University of Iasi. The study then proceeds to analyze the innovation management at LEGO Group. emphasizing the most important elements regarding the management team. and values. the research based on the case study approach. achieving to gather creative solutions and innovative ideas by involving them in the process of co-creating value. new technologies developed for sustainable development and innovation. the evolution of the LEGO products focusing on the innovation efforts of the company. the study provides the insights regarding the innovation management of the LEGO Group. Mamaia. reducing the negative impact on the environment. ro Abstract: To foster the development of innovative products and new technologies. LEGO online instruments provide the opportunity for customers to be creative and to respond to LEGO management team challenges. Romania Paper ID: E-12 INNOVATION MANAGEMENT BASED ON PROACTIVE ENGAGEMENT OF CUSTOMERS: A CASE STUDY ON LEGO GROUP (B) Gabriela Rusu & Silvia Avasilcai “Gheorghe Asachi” Technical University of Iasi. encouraging stakeholders to contribute. innovation. creating a competitive advantage on the market for companies. supporting the value co-creation process. customers‟ engagement. parents. outlining their objectives regarding the focus on the product or process innovation. As a consequence. 29. the case study highlights the features of the most important online instruments LEGO Group uses at the moment for engaging LEGO fans. Romania Corresponding author: Gabriela Rusu. Morever. Key words: online platforms. Blvd.com Create & Share Galleries instrument. Mamaia. resulted in positive outcomes for the company regarding new product development for the sets launched on the market to satisfy changing needs of their customers. the article emphasizes the objective of these past projects developed by LEGO Group. stakeholders. which aims to engage customers in submitting projects. using the companies‟ online platforms for open innovation or social media. Thus. 700050. aiming to provide a case study approach based on describing the most important projects and online instruments company uses to interact with customers and other external stakeholders. Mangeron. Iasi. Also. bringing and sharing creative solutions and ideas in order to respond to challenging needs the company directly expresses. Accordingly. voting and supporting ideas and also sharing them on social media.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. nowadays companies use an open innovation system. as the submitted ideas can materialize in new LEGO products which can be found on the market. and other external stakeholders in developing new LEGO sets. customers‟ engagement in the co-creation processs facilitated by the multiple online instruments provided by LEGO. value co-creation. the team management and stakeholders involved in the innovation actions and the results they obtained. The continuous challenges LEGO launches for their fans create a lon-term connection between company and its customers. the current research continues the analysis of the LEGO Group innovation efforts.tuiasi. creative ideas. Accordingly. by analysing the experience of the company in developing projects of involving stakeholders in the innovation processes. No. LEGO involve customers in bringing innovative ideas for LEGO sets through LEGO Ideas instrument. the research emphasizes the role of supporting the open dialogue and interaction with customers and other external stakeholders through LEGO. 220 . The results provided by this case study approach can be useful for the business environment and academia as well in order to understand the role of engaging customers in the open innovation process. Thus. grusu@tex. children. using their creativity to upload innovative models in the public galleries. Department of Engineering and Management. From this point of view the need for joint efforts with consumers in product development arose. As Research & Development processes evolved and interest for innovative concepts and products arose. From this point of view. major policies and concerns. product development. there will be analysed main features within organizational context which promotes the innovation implementation. new opportunities assessment. the companies should be aware of the innovation importance and the need for internal change. profitability and recognition. No. Blvd. Departement of Engineering and Management. Romania Corresponding author: Elena Galateanu (Avram). Mangeron. PART I: INNOVATION IN ACTION Elena Galateanu (Avram) & Silvia Avasilcai “Gheorghe Asachi” Techical University of Iasi. 29. Mamaia. consumers‟ engagement. In order to achieve organization growth. 700050.ro Technological changes and need for innovation represents the main concerns for organizational growth and profitability. main consumers‟ engagement strategies. There will be provided the review of the BMW Group experience of innovation activities. egalateanu@tex. Abstract: Key words: co – creation. Thus the primary condition for an organization to be consumer centric is to define clear the vision and mission which reflects the common efforts for co – creation and diffusion of innovation. Based on case study of BMW Group. As implementation of open innovation applications increased and value co – creation became well known and major process. recognised leader in automotive industry for innovative concepts.tuiasi. open innovation. The foreseen result is to understand how companies are adapting to the technical and innovation changes as the main criteria for future product development and consumers‟ engagement motivation through the platform – based communication. However the main priority is still about achieving high performance through product development and consumers‟ engagement activities. 221 . Romania Paper ID: E-13 INNOVATION THROUGH DEVELOPING CONSUMERS COMMUNITIES. The digitalized innovation became the main source for establishing the direct communication with the consumers. there is necessary to assess the organizational structures.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. the values which promote the consumer – centric product development. companies started to implement the specific instruments for consumers‟ attraction and engagement into design and product development. innovation policies. companies were engaged into value co – innovation activities. to implement new policies and to establish strategic targets. Basically it is justified the need for platform occurrence and development. Iasi. From this point of view it is important to enhance past experiences of the company in the field of co – creation projects. 700050. No. There will be highlighted the dual consumers‟ character as co – creator and co – evaluator based on their involvement in the proposed and developed projects and platform structure. concepts or other relevant contributions. Blvd.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. innovation. Thus the need for innovative virtual instruments arose as the demand from social communities for personalised products or services increased. 222 .tuiasi. with ideas. The significant impact on platform functioning it has the diversity of company‟s concerns for Research & Development and innovation activities. the main proposed themes and the evaluation process. egalateanu@tex. From this point of view there will be assessed the platform structure. 29. comfort and appearance of the products. Romania Corresponding author: Elena Galateanu (Avram). Mamaia. co – creation lab. The main outcome is to highlight the significance of platform development as innovative tool for consumers‟ communities‟ enhancement. where consumers can participate. Abstract: Key words: consumers‟ community. Based on the analysis of “BMW Co-Creation Lab”. Thus it is important to understand the evaluation process of gathered ideas and intellectual property policy. Romania Paper ID: E-14 INNOVATION THROUGH DEVELOPING CONSUMERS COMMUNITIES. The importance of platform development and implementation will be highlighted by company‟s results in terms of Research & Developments investments and future projects which will be proposed. Mangeron. development and distribution processes. and interact with designers or engineers for product development. Iasi. The companies seek to develop new ways to engage consumers and customers into co – creation value through the product design. However the main concern is manifested for new and creative ways of customization products based on consumers‟ requirements and needs. virtual instrument. platform. This paper aims to present the most important features of platform development within BMW Group as a concept and as innovative instrument. there will be revealed the main consumers concerns in terms of safety. PART II: DIGITALIZING THE INNOVATION PROCESSES Silvia Avasilcai & Elena Galateanu (Avram) “Gheorghe Asachi” Techical University of Iasi. Basically companies should develop own innovative platforms. assessed and implemented by BMW Group in order toshow the responsility for their products and consumers.ro The current research recognises the concept of innovation as the main driver for organisational growth and profitability. Departement of Engineering and Management. : commitment.This paper shows the great importance of intellectual capital comprised in the process of strategic planning in order to overcome the challenges of various changes in the environment and to contribute actively to the development of local administrations. and strategic planning design. Bogdan Balaniscu 1. The construction of the analysis methodology took into account also various organizational internal factors (e. 62 Avenue Notre-Dame du Lac. 49000 Angers. Mihaela Luminiţa Lupu1. No. Romania 2 University of Angers. France Corresponding author: Ionut Viorel Herghiligiu. ionut. knowledge management. Blvd. 700050. Mamaia. Iasi. The purpose of this article is to provide to Romanian local administration an efficient tool (an efficient methodology) that could analyses the intangible assets because these assets develop and implement different local strategy on long term view. Key words: intellectual capital. legal regulations and official regulations regarding the organizational structure).univ-angers. strategic planning. LASQUO. Although strategiс planning and intelleсtual сapital are very wide spread in present literature.g. Christian Robledo2 & Abdessamad Kobi2 1 “Gheorghe Asachi” Technical University of Iasi. local public administration.g. compliance. Department of Engineering and Management.Mangeron. 223 .ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Therefore the paper focus on the relationship between intellectual capital (human capital/ structural capital/ relational capital) and the strategic planning process at the local public administration level.herghiligiu@etud. participation. Romania Paper ID: E-15 INTELLECTUAL CAPITAL MANAGEMENT IN LOCAL PUBLIC ADMINISTRATION: STRATEGIC PLANNING ENGINE Ionuţ Viorel Herghiligiu1.fr Abstract: The human society has progressed during the last decades to a knowledge-based economy and as a result the organizations from public services have reconsidered the level of importance regarding the human capital. 29. information/ knowledge engineering. information system) and external organizational factors (e. the сonсept of intelleсtual сapital as a pillar for strategiс planning is less approсhed. research.: government policy. Elena Fleacă & Bogdan Fleacă Politehnica University of Bucharest. The forecast of the energy's request presumes the estimation of this request's characteristics: size. the generalization of the dealing on the market. This means firstly to establish by forecast the future development and the corect appreciation of the factors impact and the decisions on the future. Romania Paper ID: E-16 STATISTICAL METHODS USED IN ELECTRICAL ENERGY MANAGEMENT Petruța Mihai. are processes which are developed in time. in the future are new targets.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. mihaipetruta@yahoo. are introduced the castigations needed for the purposes. who presumes new forecast horizons and new decisions. The forecast of the electrical charge is a tool of a modern EMS. so the forecast is a tool who tries to minimize these uncertainties. the adaptation process must be continuous. Business Engineering and Management. time evolution. It is obvious that the uncertainty's elimination is not possible. forecast. The initiatory of the private process of the electricity distribution. Abstract: Key words: statistical methods. Romania Corresponding author: Petruta Mihai. The forecast can be defined like approximately of the unknown events from the future. consumption. this thing is necessary because of the existence of some unknown events. In this context. are very important. and also at the society level. but this event play an important role in taking some decisions. the paper shows a lot of aspects connected with the forecast on short term of the electric energy consumption. showed in forecasts and rehearses castigations which will maintain the evolution on the target. Is self-understood that because of the forecast and taking decisions. in conditions of aleatory perturbation. 060042. the request's structure. and secondly. the substantion of a new mechanisms and instruments for the market risk management and the bigger decentralization of the dealing with electric energy are some of the most important aspects in which the forecast studies on short term. 224 . and this were reflected in the environment. electrical energy. Bucharest. Faculty of Entrepreneurship. The powerful industrial development has brought important changes in all areas. 313 Splaiul Independentei Street. More. Alexandra Ioanid. Mamaia. once we are close to the specific targets.com The importance of the forecast in management is very important. and so on. the decisions phase. technological forecasts. labor force forecasts. defining strategies that would allow the evolution of the organization on the desired path and elaborating a plan to describe the evolution towards the desired state. 060042. Markov chains. scenarios method. Mamaia. The paper presents the forecast methods necessary when realizing a forecast: exploratory methods and normative methods. For organizational management there are performed forecasts that improve the decision process by appreciating the future consequences of a present decision. In modern management had been established some landmarks for realizing the forecast. Alexandra Ioanid. Achieving a forecast management implies: performing forecasts for the determination of the future state of systems. forecast.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Abstract: Key words: Forecasting management. economical forecasts. Bogdan Fleacă & Elena Fleacă Politehnica University of Bucharest. Markov chains. The forecast theme performed for an organization refers to: changing the organization policy in order to avoid difficulties that might appear in the future. as normative method was used the Pattern method.com The management of an organization implies the existence of a forecast. The exploratory methods used are the chronological series method. The method used is called forecast management. Faculty of Entrepreneurship. This implies redefining the objectives and modifying the strategies. 313 Splaiul Independentei Street. 225 . marketing forecasts. mihaipetruta@yahoo. In an organization there are performed: development forecasts. Romania Paper ID: E-17 FORECASTING METHODS FOR MANAGEMENT SYSTEMS Petruța Mihai. Bucharest. Also. chronological series. Romania Corresponding author: Petruta Mihai. Business Engineering and Management. suppliers. o safety and easiness in equipment operation. quality faults. and which deliver as a result equipment able to ensure: o product with high quality. Mamaia. The purpose of this work is to show the best usage of EEM and EPM on particular example in production.kiljan@polsl. It is possible by considering the experience with previous machines and uses it in developing the new ones in both installation and operating phase.The problem can be solve by: limiting the equipment life cycle cost. o greater flexibility.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Equipment management in facility causes many problems like: production difficulties. maintenance difficulties. safe. Level of production costs is determinant of facility competitiveness. o minimal cost. available. fast start (installation) of new equipment and high quality of product. This is to create verification check lists of developing and characteristic phase. 226 . o reliability and maintenance ability. to minimize costs. Abstract: Key words: product. Romania Paper ID: E-18 EARLY EQUIPMENT MANAGEMENT AND EARLY PRODUCT MANAGEMENT IN PRODUCTION PLANT Anna Kiljan & Marek Roszak Silesian University of Technology. which product has to guarantee (Design Reviev). manufacture reliable device. easy to maintain. reduce life cycle cost and vertical start-up. Konarskiego 18A. appropriate not from technological innovation point of view but from point of view of continuous improvement through problems overtaking ability. Institute of Engineering Materials and Biomaterials. which contain experience from previous equipment management in facility (determining the risk. which might appear in those equipments. EEM methodology has the purpose of creating competitive equipment. equipment. using Design Review system in equipment developing process. company. by LCC design (minimize LCC – Life Cycle Cost).pl Early Equipment Management (EEM) and Early Product Management (EPM) in production plant. production plant. The result of this work is presentation on particular example in manufacturing facility usage of above described methodologies for early solving and problem prediction related to purchase and operation of equipment and manufacturing specific product. 44-100 Gliwice. difficulties in reaching high levels of OEE in short time after installation of devices or safety requirements not always simple to solve. o shorter lead time of developing. production management. analysis and solving the problems). minimal cost. easy to control and clean. especially maintenance personnel. Poland Corresponding author: Anna Kiljan. Faculty of Mechanical Engineering. received by design for quality (QAD – Quality Assurance Design). Application of EEM expects precise cooperation those who work in developing new equipment (Technology Department). those who work in developing the product and those who work in production. All this kind of problems causes increase of production costs. anna. which provide information necessary for starting new production. Production systems knowledge resources are based on the characteristics of treatment technology applied in the company.pl The paper presents examples of knowledge management system construction on the basis of research methodology. with distinguished significant decision problems. Examples of input and output information sets and diagrams of knowledge flow within a company have been presented under the analysis of production processes knowledge.paszek@po. Abstract: 227 . The maps facilitate fast determining of distinct competencies of the individual employees and such locations within a company. Methods applied in them are based on expert methods.opole. railroads intersections and their constituent elements. Examples of production knowledge processing stages have presented at the technological production preparation range of a given assortment. Examples of graphic formalization and a record of rules for the design of railroad turnout‟s elements treatment have been included. It facilitates ordering of information sets which refer to the problem to be solved and a record of knowledge in form of decision rules. Products knowledge resources have been divided into two basic information groups: general and detailed information about railroad turnout‟s subassemblies. A method based on a structure of knowledge forms has been applied in the process of knowledge obtaining.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. The presentation of examples starts from the knowledge resources analysis of a given company. 76 Prószkowska Street 45-758 Opole. Mamaia. Example of PCshell system application was presented. Poland Corresponding author: Alfred Paszek. The paper includes examples of determined knowledge management processes support methods. The implementation stage was linked with the processes of use and maintenance of production knowledge. The system elements in form of blocks have been described in detail: facets. The process or knowledge resources location is based on elaborated knowledge maps. This facilitates identification of knowledge which is necessary for solving a problem and their subsequent ordering according to a method of knowledge management system construction. Romania Paper ID: E-19 THE METHOD OF BUILDING A KNOWLEDGE MANAGEMENT SYSTEM IN A MANUFACTURING COMPANY Alfred Paszek & Piotr Wittbrodt Opole University of Technology. Knowledge formalization is based on construction of designing principles. with detailed information on the technological process. applied in the construction of knowledge base for initial treatment technological operations of chosen elements. rules and control as well as the programme instructions applied. A staged production preparation process was elaborated for the purpose of knowledge identification. a. The final part includes part of the programme source code and examples of forms. generated during the system work. representing a group of specialized manufacturers of railroad points of railway and tram lines. Each of the groups represents significant products features and includes their examples. The forms facilitate additionally an introduction of decision explanation mechanisms in the knowledge management system. production delays. Romania Paper ID: E-20 MULTI-ASSORTMENT RHYTHMIC PRODUCTION PLANNING AND CONTROL Bozena Skolud 1. Konarskiego 18A. 228 . The concept of a flow logic in supply chains that is approaches in which the abandonment of production in batches for the production of individual components. and the quantity production indicators. Changes in the production cycles are necessary to be able to realize production of the so-called fixed volume mixed sequence.skolud@polsl. This approach allows to put together the simultaneous production of a large range of products and the need to produce in batches and a pull production system. Such organization of the manufacturing processes flow requires a completely new way of verifying orders to concurrent execution and flow control. Willowa 2. management. flow logic. which guarantee production flow without deadlocks and starvations. In the next part the method of determining the sequence of operations for transient phase between two known steady-states established for rhythmic production. which do not affect the production cycle) algorithms to provide fast changes between two steady-states (two different cycles of production flow) during the transitional phases. Poland 2 University of Bielsko-Biala. 44-100 Gliwice. Elements from the last of group are eliminated as too different and requiring significant investments in set up‟s. transient state. size of the inter-resource buffers.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Abstract: Key words: production planning. constraint satisfaction. manufacturing systems. Determination of the quality indicators of production. Poland Corresponding author: Bozena Skolud. which is based on the classification of products into four groups. in which production is distributed evenly throughout the day. Mamaia. without termination and restart of the whole production has been presented. regular repetition of manufacturing operations performed on system resources. utilization of resources. 43-309 Bielsko-Biala. bozena. the same sequence of operations is repeated for each resource and after the last one system returns to the first operation in the sequence. In this type of production. Possibility of production of individual single batches.pl Multiassortment rhythmic production is characterized by the rhythmic character of the production flow and the simultaneous realization of various products. Faculty of Mechanical Engineering. In the paper methods of production planning assumptions based on the rhythmic flow balancing for the one size batch unit have been presented. This approach significantly reduces the set-up times associated with assortment changes and helps to minimize the size of the production batches. Department of Production Engineering. This paper presents a method of production planning and control based on the combined concepts of rhythmic production and flow logic. on which for every constant period T. with slight benefit to the manufacturer. Damian Krenczyk1 & Marcin Zemczak 2 1 Silesian University of Technology. while keeping cyclical nature of production requires also development of (except transform the internal set up's into external. such as. The key consequences of the paper emerge from the major role of business engineering education in preparing business engineers for the forthcoming marketplace requirements in a way that can improve the people quality of life. The paper tackles an interdisciplinary view between engineering education. elenafleaca@yahoo. Finally. 313 Splaiul Independentei Street. social entrepreneurship. entrepreneurship. Anca Alexandra Purcărea. social responsibility. The engineering education has to go beyond the technical knowledge and to develop business behaviours that take into account a positive return to the society. The results are supporting the substantial role of social responsibility thinking and awareness emerged from gaining a larger understanding of how issues related to society allow future business engineers to act as social entrepreneurs and develop innovative solutions and mobilize available resources to affect the greater global society. the authors have undertaken a quantitatively research aims at assessing the awareness of social entrepreneurship of business engineering students with respect to: knowledge. Romania Corresponding author: Elena Fleacă. social. expectations and behaviours. entrepreneurship. 229 . 060042. Bogdan Fleacă. The research methodology was firstly consisted of a qualitative research on the competitive literature on social entrepreneurship and business engineering education requirements to capture the inner connections between the future of business market and the pressure on addressing economic. in an integrated manner. the social entrepreneurial thinking is helping students. Business Engineering and Management. Bucharest. in terms of addressing these challenges in the marketplace. the authors paid attention on how adopting and leveraging worthy education endeavours in social entrepreneurship are stimulating benefits for the future business engineers by becoming innovative social entrepreneurs.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Mamaia. attitude. the research results emphasize the gap between the evolution of business engineer profession and the students‟ awareness related to social entrepreneurship. to boarder understand the context of business market issues from a crossdisciplinary view that transcend technical disciplines. A survey based on questionnaires was conducted among 50 students in business engineering field from a higher education provider in Romania. Abstract: Key words: engineering education. Therefore.com As a key reaction to the evolution of social and environmental concerns. fields and theories. there is a growing recognition of the need for preparing the future generations of business engineers to create and sustain social value. Secondarily. Romania Paper ID: E-21 PILOT STUDY ON THE SOCIAL ENTREPRENEURSHIP AWARENESS OF THE FUTURE BUSINESS ENGINEERS Elena Fleacă. and social responsibility domains by reviewing and benchmarking the relevant concepts and initiatives at international level. Faculty of Entrepreneurship. The study was limited to the students perceptions and do not take into consideration other stakeholders opinions concerning the social entrepreneurship endeavours. Petruța Mihai & Octavian Negoiță Politehnica University of Bucharest. and environmental aspects. However. the future business engineers. 230 .accident scenario. Mechnikov Street. Monte Carlo simulation and markov analysis. Risk assessment is not about creating huge amounts of paperwork. logic diagrams (Fault tree). analyse a simple system using FTA and ETA. getting the probability of occurrence of the top event. pivotal events. Purpose of the work: The main purpose is to help identify potential causes of system failures before the failures actually occur. c) construction of the fault tree.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. b) hazard identification and selection of the Top event. e) quantitative evaluation of the fault tree. identify the outcome risk. The objectives are: understand purpose of FTA and ETA. obtain the failure event probabilities. In this paper will analyse two cases: pressure tank and valves-for FTA analysis and fire protection system-for ETA analysis. provides graphycal simbols for easy of understanding. Key words: risk. The risk risk assessment techniques are: Fault Tree analysis (FTA). Research and methodology: Results: In the finally of study it will be obtained: for FTA analysis-criticas areas with Boolean algebra. Even Tree) is constructed to show the event relationship.The keys points are: examines a system from Top to Down. analysis. identify the pivotal events.com Abstract: Risk assessment is the determination of quantitative or qualitative value of risk related to a concrete situation and a recognized threat (hazard). The results can provide either qualitative or quantitative data for the risk assessment process. Faculty of Naval Electro-Mechanics. d) qualitative examination of the structure. even. probabilistic risk assessment (PRA). FTA and ETA advantages and disadvantages. Can also be used to evaluate the probability of the Top event using analytical or statistical methods. event tree (ET). built the event tree diagram. In this paper we will consider as risk assessment techniques: Fault Tree analysis (FTA). Even Tree Analysis (ETA) and Bow Tie Analysis (BTA). 34. technique. evaluate the outcome risk and recommend corrective actions. but rather about identifying sensible measures to control risks. Romania Paper ID: E-22 RISK ASSESSMENT TECHNIQUES WITH APPLICABILITY IN MARINE ENGINEERING Evgeniy Rudenko 1. Bow Tie Analysis (BTA). logic diagrams are used to identify the cause of the Top event. Mamaia. 65029. including definition of system boundary. Even Tree Analysis (ETA). Ukraine. identify the initiating events. tree. marianapan@yahoo. 900663. fault. understand ETA process. the probability of the Top event. 2 Constanta Maritime University. Fanel Viorel Panaitescu 2 & Mariana Panaitescu 2 1 Odessa National Maritime University. Odessa. evaluation. identify the accident. The procedure for undertaking FTA involves 5 steps: a) system description. risk matrix. initiating event (IE). 104 Mircea cel Batran Street. incorporates mathematical tools to focus on critical areas. In ETA process it will be: define the system. understand and apply rules of Boolean algebra. Constanta Corresponding author: Panaitescu Mariana. for ETA analysis. a logic diagram (Fault Tree. an example is presented to illustrate our simulation. the reliability and factual efficiency of decisions based on their analysis. and practice the fuzzy technologies for solving economic. Different types of uncertainty can be discovered in a wide variety of optimization and decision making problems related to planning and operation of power systems and subsystems. usual risk decision and low risk decision . Faculty of Mathematics and Computer-Science. engineering. The mixture of the uncertainty factor in the construction of different models serves for increasing their adequacy and. development. advanced manufacturing. Cluj-Napoca 400084. Decision making can be defined as a result of mental processes based on cognitive process in nature leading to the selection of a course of action among several alternatives. 1. The proposed approach from this paper presents advantages of fuzzy approach. The fuzzy set concepts has some certain parameterization features which are certain extensions of crisp and fuzzy relations respectively and have a rich potential for application to the decision making problems. Another definition of decision making process which came to illustrate and sustain the necessity of using fuzzy method: the decision making is an approach of choosing a strategy among many different projects in order to achieve some purposes and is formulated as three different models: high risk decision.A PARTICULAR APPROACH IN MANUFACTURING SYSTEMS Adriana Mihaela Coroiu Babes-Bolyai University. No. Romania Coresponding author: Adriana Mihaela Coroiu. in manufacturing . Mihail Kogalniceanu Str.. as a result. in comparison with other paradigm and presents a particular way in which fuzzy logic can emerge in decision making process and planning process with implication.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. decreasing costs. Romania Paper ID: E-23 FUZZY METHODS IN DECISION MAKING PROCESS . Finally. and delivery rate. Fuzzy analysis represents a method for solving problems which are related to uncertainty and vagueness.ubbcluj. and societal problems. fuzzy sets. so we can see and understand that the most of manufacturing firms do the best in order to accomplish meeting demand. uncertainty.some specific formulas of fuzzy logic. Mamaia. A particular area is represented by development of methodologies to enhance the ability to managed complicated optimization and decision making problems involving non-probabilistic uncertainty in order to understand. it is used in multiple area. planning process. as a simulation. Abstract: Key words: decision making process. management. In present the development of fuzzy technology represent an interest area of research.ro We are living in a competitive environment.
[email protected] in measuring performance of advanced manufacturing systems. 231 . such as engineering and has applications in decision making problems. Cluj. planning and production. increasing quality. Each process of decision making has as result a final choice and the output can be an action or an opinion of choice. ro This paper describes the development and design of a reliable informatic product that enable to measuring the industrial processes performance by management framework methods. which requires the identification and implementation of effective management framework methods. Brasov.. The MSSP informatic product is used not only in the simulation experiments of assembly line AML. it's confirming that it was properly built. Validation of the MSSP product is carried out through a significant case study that describes and investigates the impact of rejection rate on the production rate of an assembly line and the use of simulation in supporting system design and in improving manufacturing performance. method. No. rejection rate. Abstract: Key words: assembly line. facilitates the mechanisms of identification and selection of decisions and management methods applied to improve the industrial process. its benefits and limitations and its application on the investigation of rejection rate is discussed. is carried out using the Witness simulation system. It briefly describes typical problems that call for the use of simulation and then explains how the relevant data are collected.filip@unitbv. Department of Engineering and Industrial Management. how the integrated simulation tool assembly works. So. MSSP is an interface between Witness simulation system and three Excel components used to modeling and simulation the assembly line AML. provided that the input data are correct and correspond with reality. the informatic product MSSP and the analysis tools have proven to be effective to modelate and simulate the assembly line AML. florina-cristina. the industrial product MSSP provide centralized and processed information which are useful in making decisions about implementing frame management methods to continuous improvement of industrial processes. Simulation is a rewarding tool for industrial processes. but it can be used to simulate any real production process. 500174. especially in the system design and launching phases. and to collect relevant results for the impact of rejection rate on the industrial process. and in examining ways of improving performance. By validating the assembly line AML model. Mihai Viteazul Str. The informatic product MSSP (Modeling and Simulation of Production Systems). Romania Paper ID: E-24 FRAMEWORK MANAGEMENT METHODS TO MEASURING THE INDUSTRIAL PROCESSES PERFORMANCE BY SIMULATION Florina-Cristina Filip & Vladimir Marascu-Klein “Transilvania” University of Brasov. It is hardly surprising therefore that modelling and simulation is used by managers to take the risk out of business change. 5. interface. Mamaia. model.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. This has helped managers to concentrate more on the analysis and performance evaluation of simulation results. The core of the paper. simulation. Modelling and simulation of the assembly line AML (Assembly Main Line). The component-based nature of the simulation system has made building of accurate assembly line models very easy even to end users with limited simulation expertise. On the whole. Romania Corresponding author: Florina-Cristina Filip. 232 . productivity increase. The 5S implementation get the advantage of waste reducing. So. To implement the standardization process. Mamaia. The 5S method implementation is carried out through a significant case study whose purpose to identify. to increase the working environment quality. No. process confirmation. cleaning. optimization. task. was created a standard sheet of marking the production areas.ro Implementation of lean management methods involves using of several techniques. reducing waste (stationary and waiting times). they differ by the management systems. In the aim of checking the 5S method and to sustain the implemented process. Following the lean management methods and techniques applicable to solving more specific and not general problems. Department of Engineering and Industrial Management. properly marking and labelling of the working place.. 233 . 500174. keeping sequence of working steps. The 5S case study describes typical problems of industrial process performance and aims implementation of efficient management methods. and to eliminate mistakes. developing and sustaining a production working place from an industrial company. stress reducing. The process confirmation main objective is to observe the work process and identify the weaknesses. improving discipline. To sustain the standardization process was drawing a standard form by which is doing the process confirmation of all workplaces. Abstract: Key words: audit. management performance of industrial process can be influenced by the visual management applied to improve the process organization. transparency and clarity of material flow. The 5S audit is a standard tool used for periodical or permanent reviewing and verification of the 5S method. Brasov. was used the 5S audit. reducing the time access to the materials and needed tools. waste. and quick detection of problems. Romania Paper ID: E-25 THE 5S LEAN METHOD AS A TOOL OF INDUSTRIAL MANAGEMENT PERFORMANCES Florina-Cristina Filip & Vladimir Marascu-Klein “Transilvania” University of Brasov. 5.filip@unitbv. but are resources for implementing the concepts and rules of efficient frame management methods.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. cleaning and orderly workplace. Romania Corresponding author: Florina-Cristina Filip. and audits to establish the work in progress and to mentain the improved activities. The 5S method requires organization and safety of the working process. safety and ergonomic working places (the health of all employees). Responsible for doing the process confirmation is the shop leader whit support of lean expert and the production preparation responsible. establishing standards work (everyone knows exactly where are the necessary things). which not form a defining feature of the method. safety increase at the working place. storage areas by properly marking and labelling. and keeping process implementations. This paper describes the impact of 5S lean method implemented to storing. The standardization form help keeping safety and quality rules. Mihai Viteazul Str. analyse and deployment the method in order to enable visibility of problems and working mistakes. responsibility. florina-cristina. temperature. czaharia2003@yahoo. România 2 Technical University “Gheorghe Asachi” of Iasi-Romania. czah@ch. 300222. Iasi. Mamaia. management. Mangeron. Romania Corresponding author: Carmen Zaharia. Mihai Viteazul 1. this one-single treatment stage can be easely integrated in the existing wastewater treatment plant. Bv.docent D. robots. Romania Paper ID: E-26 DECOLORATION BY SORPTION ONTO MODIFIED COAL ASH WITH LIME OF INDUSTRIAL EFFLUENTS. and material handling equipment to help layout designs. No. Paper ID: E-27 FACTORY DESIGN. Iasi. Department of Management. Timișoara. Blvd. mixed textile effluents from the final collector before entrance in the wastewater treatment plant). industrial engineering.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. industrial effluent. Mangeron Blvd. The results are encouraging. Ads 3h. In this order. and contact time. Department of Machine Manufacturing Technology. facilities layout design CAD systems offer working environment using 2D and 3D assets library for factory objects such as conveyors. This paper shows a connection between commercial existing software for factory design and custom made optimization tool to help designers and industrial managers in this process. sorption. Romania Corresponding author: George Belgiu. Abstract: Key words: facilities layout. george. and non-polluting discharges in the natural aquatic receptor. 59A. and/or Ads 4h) for a real industrial effluent (i. 700050.Dr. Department of Environmental Engineering and Management. and will help the industrial operator to recycle at least 40-70% of its treated effluents in the technological manufacturing flux (three-four cycles). and help the industrial operator to respect the requirements from the compliance plan imposed by the environmental regulator for legal and environmental-friendly functioning of the manufacturing plant. effluent quality. Key words: coal ash with lime. 73. CAE. sorbent dose.com Abstract: The paper presents experimental data performed by sorption onto coal ash modified with lime (named as Ads 1h. 234 .belgiu@upt. Ads 2h. Also. The main operating parameters tested for high efficiency of decoloration were pH. treatment performance. A CASE STUDY Carmen Zaharia “Gheorghe Asachi” Technical University of Iasi. 700050. CAD.tuiasi. Minimize costs by taking advantage of existing market software expertise to analyse factory layouts for material flow efficiency early on during the conceptual phase of factory planning.ro.ro The new CAD tools offers robust functionality enabling manufacturers to create factory layouts much faster than ever before. Prof. MATERIAL HANDLING AND AN INDUSTRIAL STANDARDIZATION SOLUTION George Belgiu1 & Constantin Cărăușu2 1 Politehnica University Timișoara. No.e. fr (11 pt) ¶ (11 pt) Knowing the cost of production is particularly important for determining the final cost of the product and to achieve a marketing strategy. 313 Splaiul Independentei Str. In determining the price level for a product company can be guided by production costs. Our first goal is to obtain a product with minimal costs. part design. Romania Paper ID: E-28 REDUCTION COSTS PRODUCTION IN ORDER TO INCREASE PRODUCT MARKET COMPETITIVENESS Ioana Catalina Enache & Ana-Maria Avramescu ¶ (11 pt) Politehnica University of Bucharest. The proposed target at the beginning of project development is to reduce production costs by 20% of the studied area. Mamaia. dobre. but only one.. In this article. Bucuresti. The solution proposed for reducing the cost of product involves some advantages from the point of view of construction of the final product and in terms of production organization. The calculation carried out will result a cost reduction for studied area by 39%. after application and by competition. which means a considerably annual benefit for the company. Another objective is to reduce the cost of materials. The material cost analysis is made down by type of material that the factory has in stock or which they can be purchased at no extra cost. Reducing production cost should not have negative influence on product quality and service. but. we propose to simplify an area using a new part. 235 . Faculty of Aerospace Engineering. assembly flow. In the design process will be taking into account the ease with which the part can be assembled. Another advantage is that the part assembly does not require the involvement of additional connection elements. Following this change has reduced the number of workers due to the decrease in number of assembly operations and also the cycle time to produce the new part fell. material reduction. Romania (10 pt) ¶ (11 pt) Corresponding author: Enache Ioana-Catalina. A first advantage of the part design is the fact that will not be used for assembly process two parts. The need to reduce the production cost occurred when a competitor has released a product that has similar functional features and a competitive price. The studied product is a twodoor refrigerator produced by a Romanian company. Abstract: Key words: cost production. competitive product. 060042. The proposed solution involves designing a new part that fulfills the same functions. Following an analysis of materials cost is proposed changing the type of material that it is made the piece. These benefits have a positive influence on the assembly flow and so in the entire production workflow.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. after a detailed analysis from the point of view of construction that we did on the studied product.catalina@yahoo. simultaneously must ensure a quality increase. 236 . recent data published from the Romanian National Institute of Statistics. monthly) and finally the established assessment scale of the size indicators. Romania. all the companies from various fields of activity and especially those from the manufacturing sector are dealing with environmental challenges and try to manage operations according to this responsible issue.414 organizations from a total of 45. This is one of the most important business imperative according the U. Romania Corresponding author: Tilină Dana Iuliana. 313. evaluation. The second one. For example. the diagnostic stage is based on the use of Environmental Key Performance Indicators (E-KPI‟s) and the final stage consists in proposing measures which take in account the continuous improvement and the impact on the production process. etc. month). concerning the manufacturing organizations in terms of environmental protection. the period of time established for the diagnostic analysis (year. the second are development and validation of the model integration and the last one development of measures to further improve production systems and the development of ecoinnovative actions tracking their implementation within the organization.com In Romania. the large majority of the manufacturing companies consume natural resources and energy in an unsustainable manner and release large amounts of greenhouse gases leading to environmental. Romania Paper ID: E-29 A SYSTEM MODEL TO INTEGRATE THE GREEN MANUFACTURING CONCEPT IN ROMANIAN MANUFACTURING ORGANISATION Dana Iuliana Tilină. 060042. Since the last decade. the periodicity evaluation indicators (daily. weekly. The aim of this model is to chart guidelines in manufacturing industrial organizations to develop eco-innovative production systems. The first stage consists in the assessment of the current situation of the organization. market. Mamaia. are not so good. social and economic problems. The Environmental Key Performance Indicators identified in the diagnosis research were established according to the following aspects: the environmental objectives of the organization. The need of achieving economic prosperity with least environmental impact has led to the manufacturing paradigm of Green Manufacturing.E. Unfortunately. Splaiul Independenței No. productivity.dana@gmail. Abstract: Key words: green manufacturing. Faculty of Engineering and Management of Technological Systems. Bucharest.052 have implemented an Environmental Management System. The proposed model has three stages. environmental sustenability. E-KPI‟s.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. The research methodology contains three stages: developing a methodology for the collection and interpretation of data from the state of art concerning the involvement of the manufacturing industry in the environmental issues. Starting from these. the purpose of the postdoctoral research is to develop a model to integrate the concept of "Green Manufacturing" at the organizational level based on the practices and principles identified at the operational level in the context of eco-innovation. only 1. tilina. the degree adaptation of company departments. Miron Zapciu & Cristina Mohora Politehnica University of Bucharest. but involves using AVI files to teaching of computer-assisted type graphics or infographics. These laboratory courses or mentoring can be freestanding cards support CD / DVD or can be posted on websites with restricted access based on user name and password. allowing for visualization of steps to be taken.. Innovative methods come to successfully use other file types than those mentioned above. which allows the study of bibliographic related materials in PDF or PPT. Calea Calarasilor Str. 810017. which is inspired by the methods listed above. about the degree of access to educational materials. The results consist of graphical work. such as the: time of access. either with classic books on paper support or using books scanned or drawn and further converted into PDF or PPT files that are printed on type support CD / DVD. Mamaia. using the tools offered by Google Analytics. Romania Paper ID: E-30 INNOVATIVE METHODS FOR KNOWLEDGE TRANSFER AND MONITORING LEARNING EDUCATION COURSES ENGINEERING Adrian Mihai Goanta ”Dunarea de Jos” University of Galati. chapters accessed. made on the basis of various criteria. Another innovative method relies on the use of HTML files. learning takes place. Braila. 237 . Practically paper presents the methodology of creating courses and tutorials in AVI format. stacked and grouped on the basis of a curriculum imposed which can be accessed on a website via a user name and password. Through this work. the author has proposed to present a new innovative method. innovative communication. inspired by related sites help design software packages that can be used when teaching descriptive geometry that the technical design. and how to monitor the degree of accessing the website. monitoring. Engineering and Agronomy Faculty of Braila. on which there were posted mentioned teaching materials. in the case of solving by drawing a descriptive geometry.com At this time. etc. The graphics in teaching technical subjects such as descriptive geometry can be achieved using animated PowerPoint files. Romania Corresponding author: Adrian Mihai Goanta.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. the study adds live on the Internet using search engines and not least e-learning method. goanta_a_m@yahoo. In general this new author‟s method lends itself particularly well to the teaching of the use of software packages because the student actually see the place from where the delivered command is accessed and contextual options of right button of the mouse. Finally the author presents his findings on the benefits of this method. age of those who accessed. Abstract: Key words: knowledge. access location. The latter modern means of learning. e-learning. Faculty of Entrepreneurship. the challenges are still remaining for academics and educators. 060042.com Economic crisis and structural weaknesses of European economy have determined the key actors and decisional factors to share a common sense of urgency in overcoming these challenges. and inclusive growth. since they have to facilitate the innovation at the interface of higher education and business. sustainable. sustainable development. Romania Corresponding author: Elena Fleacă. Although. Olivia Negoiță & Octavian Negoiță Politehnica University of Bucharest. The knowledge based economy and innovations. Romania is required to assume an active and coherent role in overcoming barriers arisen from being the lowest performer country. sustainable and inclusive European dimension. reports and studies from European Commission and does not consider any other initiative related to innovation and research endeavour. research and innovation. The ten-year growth strategy for Europe. elenafleaca@yahoo. and a growing interest in designing a smart. 313 Splaiul Independentei Street. Europe 2020. places a great emphasis on investing in research and innovation. Anca Alexandra Purcărea. Romania Paper ID: E-31 REVIEW ON INNOVATION AND RESEARCH BENCHMARKS IN THE CONTEXT OF HIGHER EDUCATION CHALLENGES Elena Fleacă. The study attempts to fill the knowing gap by systematically analyse the country statistical data and the key initiatives in innovation and research that help to transform the current capacity towards more knowledge-based and innovative structure.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. the more efficient use of resources. The research boundary is limited to reviewing the official documents. The authors undertook a secondary research on scientific literature and documents analysis on the available on-line sources of information (primary and secondary sources). 238 . Bucharest. Business Engineering and Management. there is a substantial body of knowledge in the field of innovation and research. The paper aims to review the key European Union initiatives on innovation and research in higher education and qualitatively assess the gap between the innovation and research benchmarks and Romanian situation. Bogdan Fleacă. with a rate of expenditure in research and development below 0. as key means to address the shortcomings and create the circumstances for different types of developments: smart. The qualitative assessment of the gap was based on a set of relevant criteria for innovation and research performance in higher education: composite indicator of Research Excellence. Mamaia. The major consequences of the paper consist of raising awareness and better understanding the challenges and threats faced by Romanian higher education in stepping up its potential of research and innovation.5% GDP (percentage of gross domestic expenditure on R&D). Abstract: Key words: innovation in higher education. In the boundaries of the European Union countries. and a highemployment rate are the main mutually reinforcing priorities for the future of Europe. Romania Abstracts-Section F Micro. Fabrication of Nanostructure and Materials: Nanofilms. Nano-bubbles. Mamaia. Nano-droplets.Technologies: New Developments in Micro/Nano Scale Processes.and Nano. Nano fluids 239 .ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. As a result. University of Freiburg . denser and more homogeneous coatings can promote a stronger fixation to the implant. lost for example in trauma accidents. The result is dense and homogeneous coatings with improved adhesion strength and less altered chemical composition. irina. Calcium phosphates are excellent candidates due to their asserted bioactivity and strong chemical affinity to the bone composition. Bernstein2 1 Institute for Manufacturing Technologies of Ceramic Components and Composites (IMTCCC) University of Stuttgart. A. Unfortunately. The aim of this study is the production of thin. the success of the surgeries is often undermined by post-operative implant aseptic loosening and bacterial infections. antibacterial. P. clinicians rely extensively on load-bearing implants to restore patient bone functionality. antibacterial calcium phosphate coatings through HVSFS thermal spray technology and functionalization of the ceramic suspension with metal salts of known biocide activity. the deposited calcium phosphate coatings are subjected to chemical and mechanical stress. An excellent way to impart bone-bonding properties to the implant surface is to coat it with a bioactive material. Mamaia. With respect to the powder-based thermal spraying technologies. Krieg1. HVSFS is capable of processing a liquid feedstock of submicron sized ceramic particles and is characterized by low process temperatures and high kinematic impact. Hugstetter Straße 55. 79106 Freiburg. Gadow1 & A. Clinics of Orthopedics and Trauma Surgery. Romania Paper ID: F-1 SUSPENSION THERMAL SPRAYING OF CALCIUM PHOSPHATE COATINGS WITH ANTIBACTERIAL PROPERTIES I.Medical Centre. R. 240 . premature dissolution and coating delamination can take place leading to implant mobility. Germany Corresponding author: Irina Arhire. Germany 2 Musculoskeletal research lab. Abstract: Key words: calcium phosphate coatings. Investigation of the microstructure. HVSFS thermal spray. To overcome these problems. It is expected that thinner. Department of Surgery. phase composition and mechanical properties is presented.de In the field of orthopaedics. Allmandring 7b. improving the life span of the medical device. Killinger1. 70569 Stuttgart.uni-stuttgart. Arhire1. Once implanted. stable implant fixation to the surrounding bone tissue and avoidance of biofilm formation is necessary.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20.arhire@gsame. A thermal spraying technology capable of yielding thin coatings is the HVSFS (High Velocity Suspension Flame Spraying) process. Nonferrous alloys are subject frequently to annealing. Blvd. confirm the improvement of properties by obtaining a uniform structures according to applied thermal processing. Mamaia. using standard samples specific to the requests. Key words: CuZn alloy. 241 . 700050. structure. The samples subjected to analysis. Mangeron 41. D. Mirabela Georgiana Minciună1. România Corresponding author: Petrică Vizureanu. Petrică Vizureanu1. quenching and tempering. România 2 „Gheorghe Asachi” Technical University of Iasi. Faculty of Mechanical Engineering.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Faculty of Materials Science and Engineering. with specific dimensions for experiments. from which have been taken standard samples.com Abstract: The paper presents aspects of structure modifications and properties for a CuZn alloy. Blvd. annealing. The characteristics of alloys have highlighted by experiments. The researches by SEM and optical microscopy. quenching. coming from cast bar. D. The determination of alloying elements was made on optical spectrometer. tempering. Nicanor Cimpoeşu1 & Bogdan Istrate2 1 „Gheorghe Asachi” Technical University of Iasi. Iaşi. 700050. after the applying of heat treatments. peviz2002@yahoo. The quenching followed by tempering is spectacular modality to modify the mechanical properties for numerous nonferrous alloys. Iaşi. Romania Paper ID: F-2 IMPROVEMENT OF STRUCTURAL CHARACTERISTICS FOR CuZn ALLOY BY HEAT TREATMENTS Dragoş Cristian Achiţei1. The annealing follows the homogenization of structure after casting. at their specific parameters. Mangeron 41. electrochemical deposition. The formation of oxide pellicles on the piece surfaces does not lead to changes in their geometry and dimensions but gives them new properties. paveltopala@yahoo. Balti.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Keywords: oxide films. corrosion resistance. electrical discharges in impulse.com Abstract: The problem of metallic material corrosion is contemporary and of a major interest in machine and apparatus building. Romania Paper ID: F-3 INVESTIGATIONS ON ANTI-CORROSION PROPERTIES OF THE SURFACE LAYERS FORMED BY APPLYING EDI Pavel Topala. Mamaia. Natalia Pinzaru & Vladislav Rusnac “Alecu Russo” University. graphite. plasma jet machining and electric microarc oxidation in electrolytic media.Artarilor 24. ion bombardment. 3100. Dorin Guzgan. The use of graphite tool-electrodes increases their durability and processing productivity. Vitalie Besliu. The results of experimental research on corrosion behavior of the films formed by applying electrical discharges in impulse (EDI) are presented in this paper. The process of oxide pellicle formation is accompanied by surface hardening in depths up to 240 nm. tool-electrode. Republic of Moldova Corresponding author: Topala Pavel. It was experimentally established that the oxide films formed on metal surfaces increase the corrosion resistance by at least 10 times comparatively with the unprocessed surface. str. The problem of reducing the rate of corrosion and of corrosion protection is solved in different ways: anti-corrosive alloys are developed. 242 . The oxide formation in the amorphous state is attested in these thin strata and the amount of dissolved oxygen reaches up to 60% at. Alexandr Ojegov. anti-corrosive layers are applied through metallization. Industrial. Milano.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20.com The simplest and most widespread method of gaining low-temperature plasma is electric discharge in gases. Simion Bancila. Electrodes. to ionize atoms or molecules to create in gas a significant number of charged particles. Despite the intense research. It ensures plasma formation simultaneously causing auto-ionization of the active media. combustion. concluding on the most possible reaction pathways involved in many of its applications. Republic of Moldova Corresponding author: Ojegov Alexandr. Kazakhstan 2 Ovidius University Constanta. To increase the excitation efficiency of plasma formation a special construction of electrodes is proposed in this paper. Almaty. the degree of ionization of the plasma. Constanta. ionization. Alexandr Ojegov & Vitalie Besliu “Alecu Russo” University. Faculty of Mechanical. No. experimental data lack kinetic aspects.toncu@kbtu. 124. 243 . radiation..com. present a set of parallel channels having a free end-edged form. with applications rising from the chemical and petrochemical industry. LaBS. Abstract: Key words: methane. 3100. the distribution of the excited particles by their degrees of freedom. their concentration. between which plasma formation takes place. which increase the excitation efficiency by at least 2 times. Mamaia. the paper aims to study the phenomenon of methane pyrolysis under different environments (combustion and plasma). Mamaia Blvd. 20133. Romania Paper ID: F-4 INCREASING EXCITATION EFFICIENCY AT PLASMA FORMATION BY ELECTRICAL DISCHARGES Arefa Hirbu. 51 Tole-bi Str. gas composition. and Maritime Engineering. Any gas under normal conditions presents a good dielectric.. str. School of Chemical Engineering. because the rate of formation of free electrons in gases and ions due to their radiation is extremely small (tens of electrons per second in 1 cm3 of gaseous volume). Keywords: plasma. Materials. 050000. the electric field intensity and the discharge current we can control over a wide range of plasma parameters. Balti. d.ozhegov@yahoo. Abstract: Paper ID: F-5 ON METHANE PYROLYSIS SPECIAL APPLICATIONS Dana-Cristina Toncu1. alexandr. pyrolysis. Computer simulation using different database underlines the conclusions. Carrying out a comparative analysis of several available data on methane pyrolysis. size and configuration of the electrodes. computer simulation. and the thermodynamics involved often leads to inaccurate results when applied to various systems. materials and protective coatings. Piazza Leonardo da Vinci. Romania 3 Politecnico di Milano University. Department of Chemistry. Italia Corresponding author: Dana-Cristina Toncu. electrical discharge. Manipulating the pressure. thermodynamics. Gheorghita Toncu 2 & Sajjad Soleimani 3 1 Kazakh-British Technical University. and Chemical Engineering “Giulio Natta”. such as: the temperature of charged particles. dctoncu@gmail. excitation efficiency. the size of the gap. Pavel Topala. helping to the understanding of methane pyrolysis importance in future technologies. 900527. kinetics. in one way or another.kz Methane pyrolysis represents one of the most important processes in industrial use.Artarilor 24. it is necessary. Because of this. 32. the continuity. 3100. impulse. It reveals the specifics of electrical erosion of graphite. the synthesis processes of the structure of graphite depositions on the surface of the workpiece. the adherence.) have demonstrated that they resist over 57 000 cycles without any change of geometry and dimensions. Processed glass mold poanson The formation of nano-scale graphite films causes it diffusion in the surface layer accompanied by the formation of carbides with high hardness. Alexandr Ojegov & Vladislav Rusnac “Alecu Russo” University. Wear tests of glass mold poansons (Fig. Mamaia. 244 . Vitalie Besliu. and the thickness of the formed films can reach up to 7 micrometers. Laurentiu Marin. Balti. Romania Paper ID: F-6 GRAPHITE PELLICLES. paveltopala@yahoo. Experimental investigations and industrial attempts show that the deposition formation is more efficiently when the workpiece is connected in the discharge circuit of the power impulse generator as cathode. Keywords: graphite. str. Republic of Moldova Corresponding author: Topala Pavel. and. METHODS OF FORMATION AND PROPERTIES Pavel Topala. Fig. they increase the durability of molding form components by at least 2 times. the stick effect in the joint parts made of steel wasn‟t attested. Film formation on the internal surfaces of pipes allows eliminating the stick effect of paraffin stoppers that are a problem for transporting oil pipelines. The formation of graphite films in all cases lead to decrease surface roughness. erosion. lubricant. The experimental investigations on the anti-stick effect at threaded joints has shown that this effect caused by the mutual diffusion of the constituent materials of the joint parts is prevented by the presence of graphite films. and the function properties of their operation as the part component of the glass molding forms in industrial conditions. as a result. The application of films on the surfaces of parts that operate in kinematic couples leads to decrease the friction coefficient by at least 3 times. because they serve as solid lubricant and possess the anti-stick properties. its transfer processes on the processed surface of the workpiece.Artarilor 24. the thickness. and even in the case when the couple was maintained in the oven at temperatures within 400-800 °C. Petru Stoicev.com Abstract: The paper presents the conditions of graphite films formation on metal surfaces under ordinary conditions applying electrical discharges in impulse.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. the wear resistance of this layer increases. pellicle. 39cm outer diameter. Fattah Abbood2 & Firas A.A Solid WORKS PREMIUM 2012 is used to draw the geometries of plain tube heat exchanger or Ulongitudinal copper finned tube heat exchanger. For 0. Romania Paper ID: F-7 NUMERICAL INVETIAGATION OF FORCED CONVECTION OF NANO FLUID FLOW IN HORIZONTIAL U-LONGITUDINAL FINNED TUBE HEAT EXCHANGER Qasim Saleh Mahdi1. temperature distribution.8% consternation of nanoparticles. Baghdad. Iraq 2 College of Engineering. U-longtudinal. 3. Iraq 3 Mechanical Eng. Four U-longitudinal copper fins have 100cm long. 0. qasim602006@yahoo. Sahar A. It can be found about7. The finite volume approach is used to obtain all the computational results using commercial ANSYS Fluent copy package 14. and mass flow rate of nanofluid in the hot reign of heat exchanger. Baghdad.com A numerical study has been carried out to investigate the heat transfer by laminar forced convection of nanofluid taking Titanium (TiO2) and Oxide Alumina (Al2O3) as nanoparticles and the water as based fluid in a three dimensional plain and U-longitudinal finned tube heat exchanger .6%. The governing equations which used as continuity. Baghdad. type of nanoparticles.5 % for Al2O3 compared with the water only as a working fluid.3 % for TiO2 and about7. volume consternation of nanoparticles (0. 0. Department. 2. nanofluid.8cm height and 1mm thickness are attached to a straight copper tube of 100cm length. heat transfer has significant enhancement in both nanofluids.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. 245 . The effect of various parameters on the performance of heat exchanger are investigated numerically such as Reynolds' number (ranging from 270 to 1900).2%. Abstract: Keywords: finned tube.4%. momentum and energy equations under assumptions are utilized to predict the flow field. Iraq Corresponding author: Qasim Saleh Mahdi.0 with assist of solid works and Gambit software program. fluent.2cm inner diameter and 2. 0. Abbas3 1 Al-Mustansirya University.8% ). and heat transfer of the heat exchanger. Mamaia. 246 . and others. Schacher2. thus enabling us to observe the adhesion process in its different stages.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. France 2 Corresponding author: Apetrei Ancuta-Vasilica.a@gmail. Romania Paper ID: F-8 IMPROVEMENT OF DENTIST GOWNS FUNCTIONALITY BY INCREASING THE ADHESION OF A NANOFIBER LAYER ON NON-WOVEN FABRIC A. gowns.0. Khenoussi2 1 “Gheorghe Asachi” Technical University of Iasi. Key words: dentist. D. including the maintenance of the product (for example.V. The only exception was the modification of the distance from the collector which varied from 20. a mixture of cotton and polyester is more likely to resist damage caused by repetitive washing than a 100% cotton fabric).05 . air flow. we subjected the nonwoven placed on the fabric sample to high pressure steam. This enabled us to create a bond between the fabric and the nonwoven. the goal of our work is to attach a layer of nanofibers to the chosen fabric in order to create a better protection by shielding the dentist gowns from external contamination factors. Fibers with a variety of shapes and sizes (the diameter was in range of 0. protection. The reason why we chose this type of tests was to avoid the direct contact between the skin and the chemically treated fabric (the dentist gowns are usually worn directly on the skin). In order to test the adhesion of a nanofiber layer on the fabric we prepared a solution of PA 6/6 pallets and formic acid solvent with a 20 wt. Iasi. Mamaia. Mulhouse. Romania Université de Haute-Alsace – ENSISA. 15 and 10 cm. The electrospinning process uses an electrical field in order to create a charged jet of polymer solution. L. apetrei. A. The mixture was stirred at 50°C for 24h in order to obtain a homogenous polymer. we incorporated the polymer solution through an electrospinning process that lasted 1 minute as soon as the steam was applied. Laboratoire de Physique et Mécanique Textiles.150 microns) were produced from PA 6/6 polymer. By using European Standards EN 13795 we can carry the tests in order to determinate the best configuration of the fabric we use and their properties to create the final product – the dentist gown. Adolphe2 & N. The fabric we opted for is a mixture of 60% cotton and 40% polyester. In order to improve the adhesion between the nanofiber layer and the fabric. In order to choose the right fabric we took into consideration parameters such as: composition.com Abstract: Although this study is just in its preliminary phase. The same electrospinning parameters were used for all samples. %. Apetrei1. After creating the samples. nanofibers. Department of Textiles. During these tests we used a nonwoven fabric in order to improve the grip between nanofibers and fabric without any chemical treatment. This jet travels through air while the solvent evaporates leaving behind a charged fiber that can be collected. Curteza1. In our work. like time histories. not much practical progress has been made so far and a large number of ships continue to sink because of this phenomenon. According to the IMO (International Maritime Organization) there is a necessity for proposing mathematical models that could simulate the ship‟s capsizing taking into account as much as possible of these factors. Mamaia. order and chaos. It describes the behavior of a ship that is simultaneously heaving. The aim of the paper is to summarize the mechanism of ship capsize under direct and parametric wave excitation and to make some suggestions for improving the ship stability. Romania Corresponding author: Deleanu Dumitru. 900663. Romania Paper ID: F-9 AN INVESTIGATION INTO THE CAPSIZE PHENOMENA OF A VESSEL Dumitru Deleanu Constanta Maritime University. a real capsized vessel (the trawler fishing boat Goal) is chosen to be numerically investigated using MatLab software package. phase planes. Some accepted indicators. liquid cargo. Constanta. The fact that the damping plays an important role in ship‟s stability is proven by varying the damping coefficient and constructing in the parametric space the boundaries between the regions in which the system exhibits chaos and those associated with periodic responses. parametric excitation. Faculty of Naval Electro-Mechanics.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. water on deck. lack of sufficient information about environmental conditions during the accident or resonance conditions. Poincare maps. This is because of the huge number of factors involved. bifurcation diagram and maximal Lyapunov exponent. With the forcing amplitude as bifurcation parameter. Abstract: Key words: Capsize. 104 Mircea cel Batran Street. have been computed and they confirm the transition from order to chaos. In order to prove this.com Despite of an extensive research on the capsizing problem of a vessel. The periodic solutions obtained by the HB method compare very well with those obtained by numerical integration. including severe winds and waves. 247 . dumitrudeleanu@yahoo. the second-order nonlinear differential equation developed by Thomson et al (1992) is taken as a model for a vessel capsize in periodic beam seas. the harmonic balance (HB) technique has been used to provide approximate solutions for the periodic motions and to predict the period doubling bifurcations by a stability analysis based on Floquet theory. stability. Additionally. the analyzed system exhibits either periodic or chaotic behavior. the route to chaos being realized by a period doubling sequence of periodic motions. swaying and rolling in waves. tr Polypropylene fiber concrete is a kind of concrete that polymers are used as admixtures and also supplements in. The advantages of polypropylene fibers are: improving mix cohesion and pumpability over long distances. For the last group the maximum compressive strength at 750°C was determined for the specimens with 300 gr polypropylene fibers in. Turkey Corresponding author: Majid Atashafrazeh. The maximum compressive strength at 23°C was determined for the group of 300 gr polypropylene fibers concrete and this increase was about 5. University of Atatürk. Abstract: Key words: Polypropylene fiber concrete. 300 and 750°C for 2 hours. the greatest increase in strength was related to this group. 25240. That is because of the melting of the polymers which causes concrete to change to a porous material and prevent explosion of the concrete at high tempratuers. This increasment was 9.1% in accordance with the control specimens. compressive strength. Finally based on the results of the study. The purpose of this study is to investigate the strength of polypropylene fiber on fire resistance in concrete. Romania Paper ID: F-10 COMPRESSIVE STRENGTH OF POLYPROPYLENE FIBER CONCRETE UNDER THE EFFECTS OF HIGH TEMPERATURES A. Ferhat Bingöl & Majid Atashafrazeh Department of Civil Engineering. Then the compressive strengths of the specimens were determained. 248 .edu. Erzurum. According to the results. Furthermore. each group were exposed to 23.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Mamaia. it can be concluded that concrete mixes which are prepared using 300 gr polypropylene fibers can significantly promote the residual compressive strength during the high temprature. 0. 300. three specimens were prepared from each group of the concrete mixes. Polymer in concrete has been monitored by Committee 548 of the American Concrete Institute since 1971. 600 and 900 gr by volume.6% in accordance with the control specimens (control specimens: concrete without any polypropylene fiber) but the maximum amount at 300°C was determined for the group of 600 gr polypropylene fibers concrete and its increase was 10. After curing period of the specimens. improve resistance to explosive spalling in case of a severe fire. Therefore concrete mixtures are prepared by using different amount of polypropylene. improve freeze-thaw resistance. porous material. All of them were kept under curing standards for 28 days. improve impact resistance and increase resistance to plastic shrinkage during curing. In order to consider the test result‟s accuracy. One kind of the polymers that are used commonly in concrete is polypropylene fiber polymer. polymer. temperatures. amajid@atauni. it is concluded that the relative compressive strengths of specimens containing polypropylene fibers were higher than control specimens.2% in compared with the control specimens. can be applied at nanoscale and help us to decide to the proper nanoparticles shape and the optimal orientations of the applied fields for the desired dipolar fields configuration in a defined microscopic area.. The components of the magnetoelectric coefficient tensor have been calculated using a physical algorithm based on the near-filed values in the particles vicinity. magnetic field. Each composite configuration presents specific advantages in respect with the control process by the external magnetic field. Romania Corresponding author: Daniela Ionescu. shape factor. 4Department of Communications.0 program. 300223. generated by the HFSS program. considering that the effect of dipolar field generation is strongly anisotropic. magnetoelectric effect.. The external sphere diameter / cylinder length have sizes from 80 – 100 nm to 360 nm. coordinated by the strength of the magnetoelectric effect inside the material sample. 249 . at frequencies in microwave range (16 – 28 GHz). in order to determine the influence of the constituents shape on their control process realized by an applied magnetic field. Romania Paper ID: F-11 THE SHAPE FACTOR INFLUENCE ON THE CONTROL PROCESS OF MULTIFERROIC NANOPARTICLES IN GHZ RANGE Daniela Ionescu1 & Maria Kovaci 2 1 “Gheorghe Asachi” Technical University of Iasi. 700506. The geometrical structures of the nanoparticles which have been analyzed comparatively were nanospheres versus nanotubes: a spherical core-shell structure. Mamaia. Telecommunications and Telecommunications. The external shell is piezoelectric and we have chosen the BaTiO3 perovskite. with A an alkali earth metal. The composed nanoparticles were simulated in a 100 – 270 Oe external magnetic field for controlling the dipolar electric fields generated by the nanoparticles. Timisoara.com Abstract: Materials with piezoelectric properties associated with the ferroic phases generate multiferroic structures at microscopic level.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Performance of the two shapes composite nanoparticles to generate a dipolar electric field was discussed comparatively and the influence of the shape factor on the magnetoelectric effect was illustrated on graphs. Key words: nanocomponents. respectively a cylindrical core-shell structure with magnetostrictive rod and piezoelectric cylindrical coating. Muliferroic nanoparticles with different configurations were considered in this paper. 2 V. The inner core was considered a AFe12O19 M-type hexagonal ferrite. The particles response is function of their geometrical shape. while the inner sphere / rod diameter are of 20 to 60 nm. Iasi. Departement of Telecommunications. The magnetoelectric voltage coefficient (of tens of mV/come for the considered nanocomposites) has also been computed for each particles configuration. Telecommunications and Information Technology. Faculty of Electronics. Pârvan Blvd. which are non destructive. with magnetostrictive core and piezoelectric shell. Faculty of Electronics. The nanoparticles were simulated using the HFSS 13. considering the nanostructures with hexaferrites as magnetic phase. 11 Carol I Blvd. Romania 3“Politehnica” University Timisoara. control. These features can be elegant illustrated by simulation methods. danaity@yahoo. . 300223. Romania Corresponding author: Daniela Ionescu. Nanoparticles geometry and the external magnetic field intensity were modified in order to obtain a convenient variation and control of the magnetoelectric coefficient tensor components. Telecommunications and Telecommunications. Department of Telecommunications. The perovskites present large piezoelectric coefficients. files depending on particles size. 11. Abstract: Key words: muliferroic nanoparticles. at data storage and processing.com We have considered in this paper muliferroic spherical nanoparticles consisting of magnetostrictive core encapsulated in piezoelectric shell. The tensor components depend on the physical properties of the constituents (the piezoelectric coefficients of the ferroelectric phase. 700506. in magnetic-field-tunable microwave and millimeter wave devices.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. The diameter of the piezoelectric shell did not exceeded 300 nm. Telecommunications and Information Technology. The components of the magnetoelectric coefficient tensor and the magnetoelectric voltage coefficient were determined by simulation in microwave range (2 – 8 GHz for spinel compounds. danaity@yahoo. Romania Paper ID: F-12 FIELD CONTROL OF MULTIFERROIC SPHERICAL CORE-SHELL NANOPARTICLES WITH APPLICATIONS IN MICROWAVE RANGE Daniela Ionescu1 & Maria Kovaci 2 1 “Gheorghe Asachi” Technical University of Iasi. Faculty of Electronics.. E. respectively 12 – 28 GHz for hexaferrite compounds). as soon as the ferrites present large magnetostriction. V. for different magnetic fields applied for control (100 – 400 Oe). at spin-wave generation. Mamaia. In the considered configuration.0 program (Ansoft Technologies).g. 2. Graphs are available for choosing the optimal configuration for a specific application or a given task. magnetic field. Department of Communications. Different magnetic phases (spinel versus hexaferrite) were considered. tensor. and also depend on the constituents geometry and relative position. The strength of the magnetoelectric effect is also increased by the effect of the closed-packed shape of the spherical core-shell configuration. No. Romania 2 “Politehnica” University Timisoara. Iasi. Faculty of Electronics. No. Pârvan Blvd. resulting in nanoparticle configurations with large magnetoeletric effect. The particles were simulated in a test configuration with help of the HFSS 13. magnetoelectric coefficient. the nanoparticles have been exposed to an external magnetic field which determines the apparition of dipolar electric fields of tens of milivolts around them. etc. Carol I Blvd. 250 .: for stimulation of membrane proteins (ion channels) exchange. geometry. starting from about 50 nm. respectively the piezomagnetic coefficients of the ferrimagnetic phase). The nanoparticles materials combination consists of an ABO3 perovskite and a MFe2O4 spinel or a AFe12O19 M-type hexagonal ferrite. Timisoara. at molecular level. used in practice for tuning and control of different microstructures. in order to determine their influence in the interaction process with the applied magnetic field. Mahmoud Y. Mamaia. ATOM 2014. Wartel. For analysis it was used the epifluorescence microscopy method with excitation on 450 – 480 nm wavelength. Pellerin. 2014. Treatment with activated water by GlidArc technology of bacteria producing Biofouling. glidarc. Briandet. Hnatiuc. M. cyanobacteria. Brisset. identification. Brendan F. Destruction of planktonic. sampled at different times until 24 hours. S. Hnatiuc. This phenomenon is amplified during the harbor operations. [1. Constanta 4. Romania Corresponding author: Mihaela Hnatiuc.M. Gorman. Journal of Applied Microbiology. p. 86. S. green algae). L. Dumitrache. M. & Naïtali.4]. A. in order to prevent or delay the deposition of the first layers of biofouling. Bogdan Hnatiuc & Adrian Sabau Constanta Maritime University. biofouling.O. Grahamb. Constanta Key word: microorganisms. Sabau. adherent and biofilm cells of Staphylococcus epidermidis using a gliding discharge in humid air. M. International Biodeterioration and Biodegradation. mhnatiuc@yahoo. 621628. Finally it is observed the microorganism‟s lifetime after the surface treatment in order to identify the best protection method of the ship metallic surface. found on the metallic surfaces before and after the treatment. 251 . The main parameters used for data processing were: the number of microorganisms. [3. Herry. The comparative analysis follows the data processing which has the same input characteristics. no. J. Gilmore. A.104. processing. Sean P.. Hnatiuc. Sabau. B. Abstract: References: 1. William G. C. B. Romania Paper ID: F-13 COMPARATIVE ANALYSIS OF BIOFOULING MICROORGANISMS AFTER TREATMENT WITH GLIDARC Mihaela Hnatiuc. There are 4 mettalic samples submitted to the treatment and one witness sample. Alkawareek. The microbiological experimental results. L. Ghita. Influence of GlidArc treatment on layers formation of biofouling. different methods have been used.. Eradication of marine biofilms by atmospheric pressure non-thermal plasma: A potential approach to control biofouling?. 103. shared from the point of view of sensibility to the GlidArc technology (heterotrophic. J. R. Ghita. 2007 2.com The biofouling on the water immersed surface is one of the more important problems which must be solved when naval ships are moving. This paper presents the comparative analysis of microorganisms behaviour obtained by using GlidArc technology for the treatment of the painted metallic surfaces.L. Dumitrache. Constanta. S.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20.. Hnatiuc. have been processed with statistic algorithms from ORIGIN and MATLAB software. Kamgang. Simona Ghita.. Mircea cel Batran street. ATOM 2014. developing the biofouling. 14 – 18 3. For this reason. when the ships are stationary and there is a high density of microorganisms in the neritic area. the type of used naval paint and the method used for treatment (direct exposure or plasma activated water). M. 2]. J. C. ModTech International Conference Modern Technologies in Industrial Engineering June 17-20, Mamaia, Romania Paper ID: F-14 METAL-CERAMIC COMPOSITES VIA “IN SITU” METHODS Raluca Maria Florea, Oana Bălţătescu & Ioan Carcea “Gheorghe Asachi” Technical University of Iasi, Department of Materials Science and Engeenering, Blvd. Mangeron, No. 59A, 700050, Iasi, Romania Corresponding author: Raluca Maria Florea,
[email protected] To overcome some of the inherent problems that are associated with conventional processes, several “in situ” methods have been developed to obtain metal/ceramic composite materials. In this paper recently developed processes have been reviewed with a greater emphasis on directed melt oxidation and nitridation. These methods offer microstructures with varying metal/ceramic combinations. In some processes, metal matrix composites dispersed with controlled quantities of ceramic phase(s) are possible whereas in other ceramic composites with isolated/interconnected metallic dispersions are obtained. They could be varied by controlling the processing variables, i.e. temperature, time, reactant phases and filler materials. The properties of in situ processed materials primarily depend on the matrix and the volume fraction of the constituent phase. The mechanical properties, toughening mechanisms and potential applications are briefly reviewed. When pure aluminum is held in a nitrogenous atmosphere above its melting point, it forms a passivating nitride layer on the surface which is stable and prevents further reaction. But, in the presence of alloying additions such as magnesium and silicon, the passivating layer becomes unstable and exposes the underlying metal to the atmosphere resulting in continued nitride formation. Nitridation is in some ways a more attractive process as the process variables cover a wider range of microstructures and therefore properties. The activation energy for nitride formation (A1N ~ 100 kJ/mol) is by far less compared to oxidation (Al2O3 ~ 400 k J/tool) and the growth rates (3 × 10-2 gm/cm2/s) are at least three orders higher compared to oxidation. Abstract: Key words: “in situ”, nitridation, composites, toughening, properties. 252 ModTech International Conference Modern Technologies in Industrial Engineering June 17-20, Mamaia, Romania Paper ID: F-15 A COMPARATIVE STUDY OF MORPHOLOGY AND COMPOSITION ON OXIDE NANOPOWDERS ELABORATED BY SPVD Eduard Sebastian Barca1, Vasile Rizea1, Marioara Abrudeanu1, Adriana-Gabriela Plaiasu1, Bogdan Istrate2 & Corneliu Munteanu2 1 University of Pitesti, Faculty of Mechanics and Technology, 1 st Tg. din Vale Street, 110040, Pitesti, Arges, Romania 2 “Gheorghe Asachi” Technical University of Iasi, Faculty of Mechanical Engineering, Blvd. Mangeron, No. 59A, 700050, Iasi, Romania Corresponding author: Corneliu Munteanu,
[email protected] Abstract: The paper proposes a method of obtaining oxide nanopowders in a solar reactor using the solar energy (solar physical vapor deposition). The proposed method is a new method of obtaining nanopowders. The elaboration of the nenopowders has been performed in France, Fonte Romeu in one of the solar furnace, named Heliotron. The "heliotron" solar furnace is one of the 12 furnaces built in Odeillo-Font Romeu and is made out of mobile plane mirrors which capture the sun light and reflects its radiation toward a parabolic concetrator. The parabolic mirrors focus on a reactor containing a glass flask in which the reaction occurs using solar energy. Inside the glass flask the reaction can take place under an inert gas, the atmosphere being controlled. The advantage of the method is that nano-sized crystals are obtained, the disadvantage beeing the fact that it needs perfect weather conditions and that it takes several hours to complete the reaction. Taking into consideration that the properties of the materials change once they get to nanodimensions it is desirable to obtain nanomaterials starting from base materials. Because of the properties that nanomaterials provide, the demand has grown in the last period of time. Also the last few years provided a various number of nanomaterials used in different fields of research. Among the materials that were obtained by SPVD there can be reminded the MoS2, the MoS2 doped with Zn, CeO2 doped with Zr. The MoS2 is used in applications that require low friction properties. All of the obtained nanopowders were analyzed and characterized by X-Ray diffraction (XRD) and by scanning electron microscopy (SEM) in order to acquire the information about the crystallography and morphology considering the reactions parameters that were used in obtaining the nanopowders. From the X-Ray diffraction can be concluded in the case of the MoS2 and in the case of the CeO2 that doping occurred. By controlling the reactions parameters the end result is different in therms of obtained morphology of the nanopowders. All of the above elaborated nanopowders can be deposited in the form of thin films by laser ablation method in order to obtain better properties of the base material. Key words: SPVD, nanopowders, elaboration, MoS2, CeO2. 253 ModTech International Conference Modern Technologies in Industrial Engineering June 17-20, Mamaia, Romania Paper ID: F-16 GAS SENSORS BASED ON THE MWCNTs-Pt NANOCOMPOSITE Anna D. Dobrzańska-Danikiewicz, Dariusz Łukowiec, Agnieszka Sękala & Weronika Wolany Silesian University of Technology, Faculty of Mechanical Engineering, Konarskiego 18a, 44-100 Gliwice, Poland Corresponding author: Anna D. Dobrzańska-Danikiewcz,
[email protected] The role and application range of such sensors, based on a nanocomposite being a combination of a multiwalled carbon nanotube with platinum nanocrystals, is growing sharply and encompasses many fields of science and technology. Such sensors are applied in the following situations: when the investigated signal cannot be recorded directly with human senses or when acting as part of a device reacting automatically to the occurrence of the signal when service-free signal recording is desired. Chemical sensors are acting by using the phenomena taking place at the boundary of solid-gas or solid-liquid phases. Chemical bonds between molecules of the studied substance and absorbent material are created as a result of interaction between the phase containing the analysed substance and a sensor surface. Changes in the concentration of current carriers changing electrical conductivity are the result of the process. The larger the ratio of the sensor area to sensor volume, the more it is sensitive to contact with gas or liquid. As a result of the material science experiments performed, active elements of sensors are created, which are nanocomposites combining unique physiochemical properties of nanotubes and platinum particles. The properties are mutually strengthening and supplementing by way of synergy. The nanocomposites created according to the author‟s concept are described in terms of their morphology and structure by using modern research methods for this purpose, including TEM and Raman spectroscope methods. The examinations‟ results obtained are highly utilitarian and can be applied directly in industrial conditions. A practical application of the CNT-Pt nanocomposites obtained as a result of the experiments carried out include sensors of selected chemical substances (e.g. H2, NO2). Abstract: Keywords: gas sensors, carbon nanotubes, nanocomposites, TEM, Raman spectroscophy. 254 ModTech International Conference Modern Technologies in Industrial Engineering June 17-20, Mamaia, Romania Paper ID: F-17 NON-TYPICAL DEFECTS ON SURFACES OF CERAMIC AND ROOF TILES: NATURE AND THE CAUSES Zagorka Radojević, Anja Terzić, Miloš Vasić & Milica Arsenović Institute for testing of materials, Bulevar vojvode Mišića 43, 11000 Belgrade, Serbia Corresponding author: Milica Arsenović,
[email protected] This paper presents a study of defects which appeared on the visible surfaces of ceramic wall and roof tiles. The aim of the research was to identify the nature and the cause of non-typical defects that occurred on the surfaces. Microstructural analysis of the observed defects was conducted by means of optical microscope and scanning electron microscope (SEM) coupled with energy dispersive spectrometer (EDS) device. Glazed wall frost-resistant ceramic tiles, sizing 120×60 cm, contained black spots, and also experienced the atmosphere affected appearance of the defects (after they were built in) shaped as dark brown clusters with yellow halos. The general quality of ceramic tiles is tested in accordance to SRPS ISO 10545:2012 standard. It is revealed tat black spots originate from carbon contined in raw materials used to make glaze. The incomplete combustion in the firing process caused that carbon is trapped in a glaze or in open pores on the surface of the glaze. EDS analysis of clusters of dark-brown color in the pores showed the presence of Fe, which is found to affect the quality of the visible surface of the tiles. Iron could be entered through the raw materials as impurities, or is inadvertently applied to the surface of the tiles (due grinding or welding) in the production process, before the firing process. Non-homogeneities on the roof tiles surfaces appeared in the form of the stains on the tile-body and manifested after immersions of the tile in water or aspersing water on the tile surface. It is concluded that the cause of these inhomogeneities is a local phenomenon due to the porous structure of micro cracks caused by coarse metallic grains that are entered with the raw materials. Abstract: Key words: Ceramic tiles, roof tiles, surface defects, impurities, microstructural analysis. 255 ModTech International Conference Modern Technologies in Industrial Engineering June 17-20, Mamaia, Romania Paper ID: F-18 PLASMA NANOTECHNOLOGY PROCESSES FOR DECREASING TEXTILE SURFACE ENERGY Raluca Maria Aileni INCDTP, Bucharest, Romania Corresponding author: Raluca Maria, Aileni,
[email protected] The paper presents experimental part and modelling plasma processes for textile hydrophobization by using plasma technology. By using plasma technology can modify textile surface at nano level. For evaluating and characterisation of textile structure with hydrophobic character were developed testing units by using VCA contact angle device, scanning electron microscopy (SEM) and Fourier transform infrared spectrometry (FTIR). In the textile industry plasma is used for improving fabric performance properties (water repellence, fire resistance, and adhesion performance). Plasmaenhanced chemical vapour deposition (PECVD) is a method for preparing various types of film by initiating chemical reactions in a gas liquid phase with an electrical discharge. Plasma can be used for surface modification and polymerization to deposit thin films. The films deposited by plasma polymerization have adhesion to the substrate, are pinhole-free, and have mechanical and chemical stabilities. Natural and syntheses polymers exposed to plasma generate radicals which can initiate the polymerization reaction when are in contact with monomers in gaseous phase. Electrons in plasma near a polymer surface generate radicals at the surface of the polymer through excitation of polymer molecules and the result is a grafting polymer on the surface of the polymeric material. These films produced in plasma have applications for anticorrosive surfaces, electrical resistors, scratch-resistant coatings, optical filters, chemical-barrier coatings, and water-repellent coatings. The hydrophobization of textile surface is in high correlation with polymer type (natural or artificial) from which are the textile surface made. In opposition hydrophilic materials have high porosity or have woven or knit structure with high air permeability values. Natural polymers (cellulose, wool) have an intrinsic hydrophilic and hygroscopic character. The textile materials made from natural polymers will have a high surface energy and will require 20 minutes plasma treatment in order to obtain hydrophobic character. The synthesis polymers (polyester, PET) have a low surface energy and due to this aspect will be necessary a reduced type for hydrophobization. Many technical textile articles require a knit or woven textile structure with water repellence character. The hydrophobic character of a textile material is done by a low surface energy. By using plasma nanotechnology can reduce textile material wettability with low energy and chemical substances cost, by protecting the environment. For obtain PET fibres with hydrophobic character the polymer must be treated by using middle-frequency (MF) plasma in a mixture of argon gas and liquid-phase hexamethyldisiloxane (HMDSO). Abstract: 256 Mamaia.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Romania Abstracts-Section G Maritime Engineering and Navigation: Maritime Engineering and Technologies. Maritime Transport and Economics. 257 . madrieră. A small part of the Romanian maritime terms have unknown origins. bordo. It. germ. etc. etc. The translation of such documents was done in several ways. whose forms come from Latin. Rom. 4. No. It. ballast. banchet. bric < fr. for example. Romania Corresponding author: Corina Sandiuc. Other maritime terms have multiple possible etymologies. Germ. radă. Bord. Some of these terms have a unique etimology. Such is the case for the Romanian words braţ. barograf. through the translation of foreign textbooks related to the field of navigation. Brigantine. be they French. anemograf. Romania Paper ID: G-1 ELEMENTS AND RESOURCES FOR THE CREATION OF NEW TERMS IN THE ROMANIAN MARITIME TERMINOLOGY Corina Sandiuc Mircea cel Batran Naval Academy. It. baleniera. allowing the creation of new maritime terms in various ways: through linguistic loans. balenière. such as: abandon. brik. Zmeurei Str. derivor. forced to communicate in a foreign language to understand and make themselves understood. The Romanian maritime terminology involves a certain multilingualism. by using the internal processes of derivation and composition. the maritime terminology developed in the second half of the nineteenth century. bord. through linguistic calques. ponton. mostly French and English. There are also some maritime terms which have a controversial etymology. brigantine. Engl. balast < Fr. Brick. alură. This type of neologisms can be explained either through loans or through internal means. Constanta. the maritime vocabulary is highly heterogeneous. deroşeză. Spanish.. anemometru. Consequently. Fr. şcondru. or more precisely an uncertain etymology. baliză. tended to imitate the languages of those with whom they came into contact. cart. balenieră < Fr.uk Like many other terminologies. belier. bandulă.. lusin. engl. măr. Therefore. Sailors. both phonetic and semantical. verfafor. etc. Italian. but which have considerably enriched their meanings through the semantic calques of foreign origin. brigantino. Abstract: 258 . Mamaia. amara. through word translations. manşon. picior. Germ. brigantină < It. In the case of the following terms. etambreu.co. brick. cf.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. iaht. saulă. pilot. sabord etc. English etc. panou. such as: Rom. catapultă. epavă. hublou. carlingă. ballast. capot. bord < Fr. rujar „port worker”. such as the derivation or the semantic neology. an acceptable etymon. German. Rom. These lexical innovations are entrenched in the Romanian language because they needed to adapt to new realities and changing societal needs. etc. ema_sandiuc81@yahoo. Rom. because of the many loan words that have enriched its structure. bastingaj. couldn‟t be identified: rai „wooden wheel on which ropes are rolled”. Rom. brigantine. most of the Romanian maritime terms are neologisms. lili_vio@yahoo. Constanta. the types of strategies training that are adopted and sources of satisfaction and motivation developed. trained and have the competence they need to manage today‟s ships efficiently and safely. non-financial remuneration. Efficiency and quality of work should always be reported to the roles team members meet. social climate. At a time of increasing concerns about world growth due to financial world crisis. 900663. relationships of non-financial remuneration . Given the global nature of the shipping industry. in order to be retained in the maritime company. In any market economy.co. interpersonal relationships. and an even higher percentage for the trade of most developing countries.uk In the current competitive economy. Romania Paper ID: G-2 MOTIVATIONAL SYSTEMS TO RETAIN EMPLOYEES IN COMPANIES OF MARITIME NAVIGATION Liliana Viorica Popa Constanta Maritime University. labor. the employee attitude towards the type of work assigned. a particularly important role is held by human resources in modern organizations regarded as a strategic investment that organizational efficiency depends and achieve the smooth functioning of competitive advantage. Motivation is crucial to success not only at company level. organizations are characterized by irreversible changes. pressures for financial results over expectations. overall satisfaction. This is also the reason why employee motivation emerges as one of the most important areas of responsibility of a manager. 259 . With more than 80% of international trade in goods being carried by sea. maritime business have to face several globalization challenges. Such seafarers must be motivated accordingly. often conflicting priorities. challenges of maritime sector remains an urgent priority. social climate and labor relations. In this paper are highlighted aspects that determine labor optimization. Whether a seafarer is viewed primarily as an asset or an operating cost depends largely on the shipowner‟s point of view. Motivational factors also should be quantified by the influence that rise of individual posts and positions and by dimensions considered the most significant underlying individual motivation at work. Abstract: Key words: motivation. deployment of effort. Those at the quality end of the market will clearly put the emphasis on the benefits to be gained from employing seafarers who are properly qualified. 104 Mircea cel Batran Street.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. An important step in analyzing human potential of an organization is identification and analysis of motivational systems used as methods of stimulation of professional employees. the way work is organized and tasks are carried out. but also at the level of each department or project. No area of activity may be considered immune to the requirements imposed by the current economic environment. Faculty of Navigation and Naval Transport. Romania Corresponding author: Liliana Viorica Popa. Mamaia.motivation. seafarers need special protection and serious attention must be paid to problems involving the human and social dimension. to interpersonal relationships that are established within the group. update. the review is further extended on analyzing some of the contemporary Business Process Reengineering (BPR) tools aiming to improve the efficiency and effectiveness of the processes that exist within and across organizations. cristina. ever lasting organizations use technology to support innovative business processes that help identify processes. The main method used in the review is comparison. In this paper is made a review on some of the modeling and simulation tools and techniques used in Business Process Modeling. in order to rethink how the organizations do their work. review. design. With advances in software design. Typically.eu In systems engineering Business Process Modeling (BPM) is the activity of representing processes of an enterprise in order to analyze and improve the current process. modeling provides a means for communication. In the context of barriers removal. cross functional flowcharts or business process reengineering matrix visualizing a sequence of activities with relevance rules based on data in the process. cross functional flowcharts. a management decision to invest in business process modeling is often motivated by the need to document requirements for an information technology project. the review will consist in stating the general overview and characteristics and pointing the advantages and disadvantages. analyze. The business objective is often to increase process speed and quality or to reduce costs. the vision of BPM models becomes fully executable and capable of simulations and round-trip engineering. flow charts. Abstract: Key words: case diagrams.dragomir@cmu-edu. 900663. international cooperation and technological innovations that cause competition to intensify. 260 . For each tool under discussion.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. activity diagrams. including case diagrams. In the final section of the paper is presented a compared analysis between Business Process Modeling (BPM) and Business Process Reengineering (BPR) tools in a case-study. The review focuses on some of the most known process engineering tools used for business process improvement and reengineering: flow charts that can help visualize processes as a sequence of activities with interleaving decision points. thinking and complexity management. activity diagrams and software. Also. business process reengineering matrix. Constanta. In practice. document and restructure processes and information flows. Business Process Reengineering involves the radical redesign of core business processes to achieve dramatic improvements. In current days of on going economic crisis. 104 Mircea cel Batran Street. Faculty of Navigation and Naval Transport. Also. Mamaia. Some BPM tools are used to model. Romania Corresponding author: Cristina Dragomir. test and implement in a continuous reengineeering cycle. they will adopt a new value system that places increased emphasis on customer needs. Romania Paper ID: G-3 COMPARED ANALYSIS ON BUSINESS PROCESS MODELING AND REENGINEERING TOOLS Cristina Dragomir Constanta Maritime University. Mamaia. 104 Mircea cel Batran Street. Faculty of Navigation and Naval Transport. standardizing and sustainability. assets. A3 Gemba Interview pointing the appropiate questions for interviewing workers and encouraging them to come with creative ideas and others. machine load balancing.dragomir@cmu-edu. all intertwined with safety. but which can not be eliminated from the point of view of the supplier. secondly. Yamazumi chart. Constanta. cristina. A3Gemba Interview. including: 5S Check List refering to sorting. Romania Corresponding author: Cristina Dragomir. ie processes that do not add value and are not required. In this paper is made a review on some of the most known Lean tools used for process improvement in manufacturing. A lean organization understands customer value and focuses its key processes to continuously increase it. necessary activities that do not add value and in terms of the customer. assets. unnecessary activities that do not add value and can be eliminated. work load balancing chart. from the point of view of the customer. Work Load Balancing Chart needed to determine the optimal staff size. systemizing.eu Lean thinking is a contemporary paradigm that has been acknowledged as a requirment for continuous process improvement and excellence in manufacturing and service organizations around the world. by minimizing waste. 900663. In any business there are three types of activities: activities that add value and which. don‟t make a product or service more valuable. Block Diagram showing the major steps. 261 . Machine Load Balancing for Lean Manufacturing. inventory and cycle time of processes. The ultimate goal is to provide perfect value to the customer through a perfect value creation process that has zero waste. and departments to customers. and thirdly. Abstract: Key words: 5S check list. Yamazumi Chart showing process time workloads assigned to each worker. sanitizing. To accomplish this.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. The main method used in the review is the comparison. advantages and disadvantages. The paper has the aim to identify which Lean tool is most appropiate for a given manufacturing business. lean thinking changes the focus of management from optimizing separate technologies. Lean concept refers to the effective management of an organization‟s production processes by eliminating waste. make a product or service more valuable. and vertical departments to optimizing the flow of products and services through entire value streams that flow horizontally across technologies. Romania Paper ID: G-4 A GLANCE OVER LEAN TOOLS USED IN MANUFACTURING PROCESS IMPROVEMENT Cristina Dragomir Constanta Maritime University. For each Lean tool the review will consist in three sections: general overview and characteristics of Lean tool. sequence. Lean means creating more value for customers with fewer resources. block diagram. it is necessary to compute so called special functions: Bessel functions of the first and of the second kind. In order to be able to solve and implement such models (in wave theory.The aim of this paper is to develop numerical solutions in Matlab for the above mentioned special functions. Constanta. 262 . The Bessel functions appear in many diverse scenarios. in hydrodynamics. but also in many other engineering fields). Romania Paper ID: G-5 ON COMPUTING SPECIAL FUNCTIONS IN MARINE ENGINEERING Eliodor Constantinescu & Bogdan Mihai Constanta Maritime University.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Romania Corresponding author: Eliodor Constantinescu. in acoustics. 104 Mircea cel Batran Street. we shortly present analytically solutions (where possible) in the form of series. particularly situations involving cylindrical symmetry. and then manipulating boundary conditions with appropriate application of zeroes. Hankel functions.ro Important modeling applications in marine engineering conduct us to a special class of solutions for difficult differential equations with variable coefficients. spherical Bessel functions. spherical Bessel functions. Faculty of Naval Electro-Mechanics. modified Bessel functions. The most difficult aspect of working with the Bessel function is first determining that they can be applied through reduction of the system equation to Bessel‟s differential or modified equation. Taking into account the main properties for Bessel and modified Bessel functions. Abstract: Key words: Bessel functions. Especially we study the behavior of these special functions using Matlab facilities: numerical solutions and plotting. in electromagnetic waves. 900663. Finally. and the coefficient values on the argument of the Bessel function. mirelcon@imc. we compare the behavior of the special functions and point out other directions for investigating the Bessel and spherical Bessel functions. Riccati Bessel functions and Kelvin functions. modified Bessel functions. Mamaia. The ship route reconstruction is based on the ECDIS and Metmanager software maps and on the testimonials of one member of the ship crew. The behavior of the ship in terms of handling and course stability. Mamaia. North Atlantic.104. The simulation sessions allowed us the selection of specific parameters for the ship and the environment. Romania 2 Histria Shipmanagement SRL Corresponding author: Brinduşa Chiotoroiu.Mircea cel Batran nr. SIMULATION RESULTS Brinduşa Chiotoroiu1. hurricane. yaw. recorded during the cyclone passage. a comparison was made between the simulation results and the real results. Abstract: Keywords: ship handling. and was performed on the navigation simulator from the Constanta Maritime University. 263 . The simulation of the ship behavior takes into account real meteorological data.
[email protected] International Conference Modern Technologies in Industrial Engineering June 17-20. Romania Paper ID: G-6 SHIP’S BEHAVIOR DURING HURRICANE SANDY NEAR THE USA COASTS. together with relevant informations from the meteorological warnings and ECDIS maps. out of the port of New York. who participated to the ship voyage as a deck cadet. rolling. Str. forecast models. In order to better describe the hydrometeorological conditions. are analyzed using the navigation simulator. Nicolae Grosan1 & Elena Soare2 1 Constanta Maritime University.com The aim of this study is to analyze the impact of the stormy weather on the M/T Histria Gemma shiphandling when the ship was very close to the centre of the hurricane Sandy in October 2012. 900663.c. The forecast of Sandy‟s track was a problem because of its transformation into a post-tropical cyclone. The conclusions refer to the possibilities of manoeuvering to avoid excessive drift and large deviation from the planned route. meteorological maps from different forecast models are compared in this study. Based on the analysis of the parameters curves. b. course stability. is a challenge for naval architects. simulation. 124. No. Faculty of Naval Electromechanics. highlighting the value of the ship roll motion amplitude.software that allows the study of the computerized behavior of the ship on the waves. Dynamic positioning system is an effective instrument used on board ships operating in the extraction of oil and gas in the continental shelf of the seas and oceans. in some incident wave systems. 104. Constanta Shipyard. Constanta. Faculty of Mechanical Enginering. the features offered by OCTOPUS / SEAWAY . being essential that the personnel on board the vessel can maintain position and operating point or imposed on a route with high precision. OCTOPUS / Seaway. Mircea cel Bătrân Street. for the amplitude of the roll movements. Remus Zăgan2 & Emil Manea3 1 Ovidius University of Constanta. Romania 3 Over Seas Manager Ship Repairs & Conversions Projects.com Event of major accident navigation near offshore drilling rigs remains unacceptably high. complementing navigational facilities offered by dynamic positioning systems. wave energy spectra. Program library was used for both the vessel itself and navigation modeling environment. for regular waves as well for the irregular waves which was modelled using Jonswap energy spectrum Abstract: Key words: roll motions. RAO. Mamaia. Greece Representative Office Corresponding author: Mihaela-Greti Chiţu. No. PSV. Constanta. Ship responses are analyzed according to different positioning of the ship in relation to the wave front (incident angle ranging from 10 to 10 degree). Romania Paper ID: G-7 DEPENDENCE ANALYSIS FOR THE AMPLITUDE OSCILLATORY MOVEMENTS OF THE SHIP IN RESPONSE TO THE INCIDENCE WAVE Mihaela-Greti Chiţu1. Mamaia. For the study.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. The study provides information on the RAO (Response Amplitude Operator) response operator of the ship. Possibilities in anticipation amplitudes of the oscillatory movements of the ships navigating in real sea. and OCTOPUS is a tool used increasingly more in this respect. interpreted using the energy spectrum Jonswap and whose characteristics are known (significant height of the wave. wave period. the risk of accidents can be reduced to a minimum. pulsation of the wave). in the real conditions of navigation. 900527. known as the complications arising from the problematic of the general motions of the ship sailing under real sea. Blvd. This paper presents a study on the amplitudes of the oscillations categories of supply vessels in severe hydrometeorological conditions of navigation. mgchitu@gmail. 264 . was used. Romania 2 Maritime University of Constanta. By the adoption of a strict safety in terms of handling and positioning of the vessel in the vicinity of the drilling platform. as a tool for modeling and simulation. climate change or noise) are an important subject of the European Union. Faculty of Navigation. 265 . 900663. This paper will highlight the current requirements and methodologies used by the European Union regarding the impact of the external costs of urban transport in most of the growth poles of Europe. Constanta. given that road transport is considered to be the most polluting transport mode. 104 Mircea cel Batran Street. but also data on external costs generated by the urban transport. Viorela-Georgiana Stîngă. congestion. Romania Corresponding author: Georgescu Stefan. Taking into consideration that Constanta is considered to be one of the seven major growth poles of Romania for the 2014-2020 period. this study aims at analyzing how the results of similar studies made in others centers of the European Union can be applied in Constanta. As methodology. Mamaia. Ștefan Georgescu & Ovidiu Sorin Cupșa Constanta Maritime University.
[email protected] International Conference Modern Technologies in Industrial Engineering June 17-20. Key words: external costs. showing different methodologies and evaluations regarding the external costs and their impact. for a better quality of life at present and in the future. urban transport. We will analyze how the conclusions obtained in previous projects are applicable to data collected by us throughout a field research on the technical description of the means of transport used it this city. that is way were carried out several research projects. Romania Paper ID: G-8 THE EVALUATION OF ENVIRONMENTAL IMPACT AND THE EXTERNAL COSTS OF URBAN TRANSPORT IN CONSTANTA Costel Stanca. air emissions. Studies have shown that external costs (as accidents. The results of this study may be useful in developing the sustainable urban mobility plan for Constanta. especially when referring to the urban transport. Through this paper we will get an insight into the urban transport in Constanta.com Abstract: Transport activities are known to have a substantial negative environmental impact. taking into consideration that each externality has a different method for estimating it. we will use one that was adopted by the European Union regarding the estimation of urban external costs. as a strategic plan design to reduce the impact of urban transport. 67 Blvd Mangeron. The two mentioned systems are interconnected and realize an energy exchange. we have rather evaluated the present situation and analysed the existing governance systems in comparison with the best industry practices conducive to the financial and direct political independence of port authorities from states and cities. associated to a specific industrial environment. Mamaia. Romania Corresponding author: Tudor Stanciu. Alexandru Epureanu & Gabriel Frumusanu Technical Insitute of Galati. cost-effective. ports play an important role. Romania Paper ID: G-9 GOVERNANCE MODELS. The final target is the performance increase for both energy systems . In relation to global industry trends and empirical evidence on the governance of port authorities. gabrielfrumusanu@yahoo. much of competition is present. Romania Corresponding author: Gabriel Frumusanu. 266 . shipping is the overwhelming method. Because each port in this study has its own unique character and political heritage. A COMPARATIVE STUDY OF BALTIC AND ROMANIAN PORT AUTHORITIES Jan Sjolin & Tudor Stanciu “Gheorghe Asachi” Technical University of Iasi. Iasi. which is enabling the development of a plus-energy system. The ship is approached as a living environment. 70050. The “prices” are often public.com In this paper. Looking into the total flow of “seafaring”.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. the port authorities should improve their economic attractiveness and establish their political and financial authority. on such a manner as the systems become costeffective. In this paper. Paper ID: G-10 NEW COST-EFFECTIVE TECHNOLOGY FOR THE SHIP ENERGY SYSTEMS Nicolae Badea. As goes for the very freight hauling. living environment. we present a new technology concerning the ship energy systems. “negotiated” on exchanges and made public. a single governance system to fit all of them should not be recommended. notwithstanding that there are elements of standardization which could act to increase or reduce competition.com Abstract: As goes for the global handling of goods. both having their own energy system. tudorprojects@yahoo. Abstract: Keywords: ship energy system. plant. operational fixed costs and operational variable costs for wastewater treatment plant and its graphycal representations. Romania Paper ID: G-11 THEORETICAL AND EXPERIMENTAL RESEARCHES ON THE OPERATING COSTS OF A WASTEWATER TREATMENT PLANT Mariana Panaitescu. to compare the cost of the two alternatives for average and maximum loading rates. Finally we observe that it is more economical to build a larger plant.com Abstract: Purpose of the work: The total cost of a sewage plants is often determined by the present value method. can be used cost functions. Romania Corresponding author: Panaitescu Mariana. the establishment of power) or variables (chemical and power sludge treatment and disposal. Fanel Viorel Panaitescu & Iulia Alina Anton Constanta Maritime University. in general.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Results: Key words: operating cost. The actual target of operational management is to directly implement the presented cost functions in a software tool. The wastewater treatment plant costs are subdivided in investment and operating costs. 104 Mircea cel Batran Street. In this paper will be calculated the operational cost to make several scenarios in order to optimize its. which leads to getting the current net value. 267 . optimization. in the premises of the investment and operating costs. The method which was aplied to study the impact of the influent characteristics on the costs is economic analysis. Total operational cost (fixed and variable) is dependent global parameters of wastewater treatment plant. secondly. 900663. investment. In this study we have used the statistical formulas for cost functions. Faculty of Naval Electro-Mechanics. statistical value. sewage. For the purpose of evaluating the preliminary costs so that an installation can choose between different alternatives in an incipient phase of a project. The operating costs of the sewage plants are subdivided. Research and methodology: In this paper we obtained the statistical values for the investment cost functions. All of the annual operating costs for each process are converted to the value of today's correspondence and added to the costs of investment for each process. especially if maximum loading rates are reached. to assess the ability of the smallest design to treat the maximum loading rates to a given effluent quality and. Mamaia. All costs were compared to the net values. Constanta. Optimization of plant design consist in firstly. of effluent charges). in which the design of a plant and the simulation of its behavior are evaluated simultaneously. wastewater. marianapan@yahoo. We can use different cost functions to estimate fixed and variable operating costs. The latter can be stable (normal operation and maintenance. state of infrastructure). Mircea Roșca & Ștefan Burciu Politehnica University of Bucharest. model. wars). In our paper we investigates the Romanian road network vulnerability related to Danube crossing versus maritime ports (Constanța and Mangalia) and its mitigation by improving network topology. Mamaia. etc. Eugen Roșca. hourly/day-to-day variations. Faculty of Transport. volume. we develop a methodology to assess road transport network vulnerability versus Romanian seaports and we propose some solutions to reduce probability of road transport network to fail. the spread out of the human habitat and mainly the extension of urban areas and traffic congestion on road networks provided a special interest in the researches reliability and vulnerability for transport networks who connect maritime ports with interior citys. vulnerability. topology. Romania Corresponding author: Florin Ruscă. Using Visum software. florin_rusca@yahoo. reliability. 313 Splaiul Independentei. Aura Ruscă. The impact of nodes or link disruption could be quite significant. fires). 060042 Bucharest. Abstract: Key words: transport network.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. transport network reliability is defined in relation with the main attributes of the network (like connectivity. the malevolence (terrorist acts. The natural disasters (earthquakes.com The concepts of reliability and vulnerability are quite important in assessing the ability of transport networks from land to provide continuity in operation tacking in consideration the relation with seaports. the traffic characteristics (OD matrices. climatic change). floods. maritime ports.) and with environment interactions (natural event. sabotages. Vulnerability analysis provides a way to find structural weakness in the network topology that makes it vulnerable to consequences of failure or degradation. Romania Paper ID: G-12 THE INFLUENCE OF TRANSPORT NETWORK VULNERABILITY FOR MARITIME PORTS Florin Ruscă. 268 . So. The main objective of the paper is to locate a hub terminal that links the producers of cereals that are going to be exported by naval transportation with the Romanian fluvial-maritime ports (Galaţi. the logistic chains activities location models have to consider the uncertainties regarding the possible future situations. GIS environment can be used to integrate and analyze a great amount of data and has the ability of using functions as location . A new location for a hub terminal leads to reduced transport distances within hinterland. meaning the transport problem. Eugen Roșca. Vasile Dragu & Florin Ruscă Politehnica University of Bucharest. Romania Paper ID: G-13 LOCATION OF AN INTERMEDIATE HUB FOR PORT ACTIVITIES Stefan Burciu. 313 Splaiul Independentei. location. the location problem reducing itself to a problem that aims to minimize the transport total costs. being able to determine the optimal location for services like factories.uk Abstract: An intermediate hub might increase the accessibility level of ports but also hinterland and so it can be considered more than a facility with a transshipment role. cristina_stefanica@yahoo. with effects on port utilization and its connectivity to global economy. so with gains in people‟s life quality. with decreased transport costs and external effects. Faculty of Transport. hub.co. production costs are considered equal. Tulcea and Constanţa). These hubs might lead to the development of other transport services and enhance their role in gathering and covering economic centers within hinterlands and also getting the part of logistic facility for the ports. 269 . In most models. Romania Corresponding author: Cristina Stefanica.allocation models necessary both to private and public sector. Keywords: port. Cristina Stefanica.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. warehouses. 060042 Bucharest. Because the production and distribution systems are relatively fixed on short and medium term and the location decisions are strategic and on long term. naval transport. logistic platforms and other public services. Mamaia. Braila. or even international level. spatial accessibility. Romania Corresponding author: Oana Dinu. considering also the sustainable development requirements. 800025. the node represents an interface between „micro”-transport networks and the „macro”-networks. 313 Splaiul Independenței. oana. 060042. the transport node has an important role for the spatial structuring of the economic-social-environmental neighborhood areas. Mihaela Popa 1 & Carmen Costache 2 1 Politehnica University of Bucharest. Galați. spatial structuring. Transport Faculty. meaning the level of traffic flows depending on the facilities‟ capacity of the node. Specific criteria and related indices are designed for an active assessment. Commonly. functional role of transport node.ro This paper aims to propose a set of performance indices and related criteria for the transport network node ranking. the functional economic space extends from the local level to the regional. the attraction potential of a certain transport node is assessed by its spatial accessibility indices considering both: its spatial features of the location provided by the connected networks into that node (connexity and connectivity indices) and its economic potential. Romania 2 National Company Maritime Danube Ports Administration Galați. In the proposed methodology. allowing upstream navigation for the maritime ships). etc.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. and through it. Mamaia. continental. Paper starts with a brief overview on the key performance indices present in existing literature (including European Commission working papers for transport infrastructure) and then debates the need of their improvement.. Particular considerations for the inland waterway – maritime port case is followed by proposed methodology for the additional indices of performance. inside a composite index with ranking purposes. the economic level of its hinterland. 34 Portului Str. with special view on inland-maritime ports of Danube (ports that are located on Danube River last miles. and finally the main conclusions are drawn. near to the Black Sea. Abstract: Key words: inland waterway-maritime port. Bucharest. Romania Paper ID: G-14 ROLE OF PORTS IN SPATIAL STRUCTURING AND RELATED PERFORMANCE INDICES FOR RANKING PURPOSE Oana Dinu 1.dinu@upb. 270 . meaning to reveal the added-value of the traffic flows passing through the node. performance indices. The proposed composite indices of the node performance considers also the spatial dynamic of the node‟s functional area: in fact. varying after the external environment seasonal conditions. However. Comvex and SOCEP) are listed on Romanian Stock Exchange. Romania Paper ID: G-15 TESTING MARKET INFORMATIONAL EFFICIENCY OF CONSTANTZA PORT OPERATORS Eugen Roșca. The market price model is taken into consideration for price forecasting. and the environmental impact of the shop floor energy system functioning is also neglected. gabrielfrumusanu@yahoo. computing the return rate auto-correlations. 271 .313. Paper ID: G-16 THE RELATION BETWEEN THE SHOP FLOOR ENERGY SYSTEM AND THE MANUFACTURING PROCESS OPTIMALITY Nicolae Badea. Mihaela Popa. București. both expenditures and environmental impact of the shop floor energy system are not constant. Romania Corresponding author: Eugen Rosca. on the other hand. Traffic and Logistics Department. Mamaia. identifying the expected rate of return and the components of the shares risk (specific and systematic). Splaiul Independentei.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. and the manufacturing process optimality. The expenditures occasioned by running the shop floor energy system are one of the most important among the overhead expenses. The results are subject of interpretation considering additional managerial and financial information of the companies‟ activity. Following the mass-privatization process and the private investments. Florin Ruscă & Stefan Burciu Politehnica University of Bucharest. This paper presents the relation between the shop floor energy system expenditures and environmental impact. financial risk. Also.com The Romanian capital market is still an emergent one. eugen.com Abstract: Nowadays. No. on one hand. Romania Corresponding author: Gabriel Frumusanu. 060042. Transport. Abstract: Key words: port handling operator. the overhead expenses are a significant component of the manufacturing cost. The paper investigates their evolution on the market. the price evolution could be analyzed through the informational efficiency which instantly reflects the price relevance. the manufacturing process optimization actually does not take into account these expenses. return rate. Gabriel Frumusanu & Alexandru Epureanu Technical Insitute of Galati. market informational efficiency.rosca@gmail. More than that. The JarqueBera normality test regarding the shares return rate distribution and the Fama test for the informational efficiency are completed for each company. three of the most important handling and storage companies acting in Constantza Port (OIL Terminal. Romania Corresponding author: Andrei Preda. since its brief definition is that it is the science of energy. Faculty of Naval Electro-Mechanics. the compression and expansion efficiencies. Thermodynamics is an important topic in different departments of engineering. worldwide shipping industry had register a fast development in the number and quality of its fleet. 272 . using finite time thermodynamics.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. The calculus is based on the cycle shown in temperature. Otto cycle performance issue was presented to the students in the case of constant specific heat. the heat added to the working fluid. fact which revealed the need of improvement in curricula of programs able to provide highly qualified marine engineers. In the context of today‟s challenging world. Abstract: Key words: Otto cycle. constant. the work output and the thermal efficiency. 104 Mircea cel Batran Street. The approach presented in this paper refers to the study of the effect of specific heat of working fluid and heat loss on the performance of an Otto cycle.preda@yahoo. Constanta Maritime University replies to the necessity in keeping updated courses. Constanta. available only if it is assumed that the working fluid behaves as a perfect gas. 900663. Romania Paper ID: G-17 A POINT OF VIEW ON OTTO CYCLE APPROCH SPECIFIC FOR AN UNDERGRADUATE THERMODYNAMICS COURSE IN CMU Feiza Memet & Andrei Preda Constanta Maritime University. as a topic of the undergraduate thermodynamics course. which makes it relevant for many practical systems and devices.as a powerful thermodynamic tool in the hand of specialists. andrei. addressed to students enrolled in Naval Electromechanics Faculty. variable. one of them being the thermodynamics course. For the both situations discussed in the paper are given formula for the calculation of the total energy of the fuel. should be considered the case of variable specific heat. Since in the practice are met large temperature differences. Mamaia. Traditionally. in which are also indicated the irreversible adiabatic compression and expansion. The experience achieved after understanding this theory will allow to future professionals to deal successfully with the design of practice internal combustion engines.com The marine engineer degree should offer preparation for a successful career in advanced marine engineering practice. second year of study. in this paper the adiabatic exponent being taken as a liniar function of temperature. An aspect of this trend is found in the presentation of Otto cycles. the heat leakage. specific heats. On the other hand. meaning for relatively small temperature differences. Mechanical and marine engineering programs show several common subjects.entropy diagram. More specific. this article is a presentation of the way in which a practical example in the field of Thermodynamics is solved for the understanding of our students. Romania Paper ID: G-18 AN EXAMPLE OF ENGINEERING EXPERIENCE FROM UNDERGRADUATE COURSE OF THERMODYNAMICS IN CONSTANTA MARITIME UNIVERSITY Andreea Arsenie. so comparison is possible at the end of the calculus. such as transportation systems. Mihail Jora Str. No 2. In Constanta Maritime University. the amount of fuel consumed during 1h. The steps to be followed refer to the evaluation of the minumum amount of oxygen..ro Abstract: Thermodynamics is a discipline dealing with energy in all its forms. 273 . it is presented a calculus specific for the combustion of liquid fuels. Romania Corresponding author: Arsenie Andreea. Corina Varsami & Ramona Tromiadis Maritime University Constanta. Students receive different input
[email protected] International Conference Modern Technologies in Industrial Engineering June 17-20. Thermodynamics is a discipline which is included in the curricula of Navigation and Naval Transport Faculty and Naval Electromechanics Faculty. andreea. In this respect. the amount of air requested by the engine during 1 h and the power needed to compress the air. Mamaia. the real amount of air requested for combustion. Future graduates should be exposed to engineering calculation. It is used in the solving of problems specific to energy systems with major importance in our society. Constanta. We will present the advantages and. Romania Corresponding author: Varsami Anastasia. Mihail Jora Str. Some of these ideas are futuristic ones. Taking into account these reasons. and. Other solutions are disputable how they will be capable to generate enough power to move a fully loaded medium ship. In the maritime field. nuclear power are realizable and effective in the propulsion of a medium size cargo ship. starting with legislative changes and introduction of new rules. fuels with low emission of pollutant elements. social and economic life.com We all are depending on the environment. Abstract: 274 . where there are. the last one even in case of large and very large cargo ships. yet they are impossible or difficult to be used in practice with consistent results. but very good and important for the environment protection. Romania Paper ID: G-19 NEW PERSPECTIVES FOR MARINE ENVIRONMENT PROTECTION THROUGH INNOVATIVE MARINE PROPULSION SYSTEMS Radu Hanzu-Pazara. we can really contribute to this protection and preservation. it is in our power to protect as much as we can the environment. This is not just a theory or a story. and if it is possible to consider them as the future of marine transport propulsion systems. why not. they are the factor which dictates all climatic changes. anastasia. solar energy and wind energy in different ways. there have been many changes in the environment protection area.varsami@yahoo. the disadvantages of these alternative propulsion systems. use of low emissions fuels and. especially on the marine environment which is responsible for our lives‟ normal cycle. in the last years.. No 2. There is a possibility to use them as an opportunity to reduce consume of fossil fuel used presently. The solutions offered in this sense by the ship builders and ship owners are vary and are based on use of electrical power. continuing with ship equipment improvements and.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Constanta. Solutions like the use of electric powers. how they contribute to marine environment protection. the problem of changing the ship‟s propulsion systems concepts and configurations. to compensate the loss of propulsion due to reduction of fuel consumption. When we make this affirmation we want to say that oceans are the most important factor in the global environment equilibrium. Mamaia. Anastasia Varsami & Nicolae Grosan Maritime University Constanta. during the last decades. in the end influence our personal. reaching. Eugen Roșca. 275 . the port shunting yards specificity raises several problems such as: limited access since these are terminus stations for rail network. and respectively shunting yards. However. Mircea Roșca. Romania Corresponding author: Florin Ruscă. drawn from the simulation. Are investigates the principal aspects of shunting yards and adequate measures to increase their transit capacity. 060042. waiting time for freight wagons. help transports and logistics specialists in testing the proposals for improving the port management.com Abstract: Seaports are important nodes in the supply chains. number of railway line in station.g. Faculty of Transport. The conclusions and results. The operation capacity for port shunting yards sub-system is assessed taking into consideration the required operating standards and the measures of performance (e. railway capacity. sea ports. Aura Ruscă & Ștefan Burciu Politehnica University of Bucharest. etc. joining two high capacity transport modes: rail and maritime transport. the in-out put of large transit flows of cargo relatively to the scarcity of the departure/arrival of a ships. quay cranes. Key words: simulation model. Bucharest. The paper proposed a simulation model developed with ARENA computer simulation software suitable for shunting yards which serve sea ports with access to the rail network. Romania Paper ID: G-20 SIMULATION MODEL FOR PORT SHUNTING YARDS Florin Ruscă. The huge cargo flows transiting ports require high capacity construction and installation such as berths. It is necessary to identify technological solutions that lead to an answer to these problems. storage area. shunting yards. as well as limited land availability for implementing solutions to serve these flows.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Mamaia. florin_rusca@yahoo.) of the railway station are computed. 313 Splaiul Independentei. The wave simulation takes wave breaking into the consideration. Research and methodology: Result: In this study. it is of interest to examine how the presence of the harbour influences the waves. The wave characteristics at the offshore boundary are Hm0 =1. When simulating of the wave driven currents with MIKE 21 HD we use constant values of velocity and Manning number all over the model area. the wave driven current and the sediment transport patterns. influence.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. The bed roughness is not considered. Irregular.This study analyses the port‟ influence on the waves. directional waves are added at the offshore boundary of the wave model. Romania Corresponding author: Mariana Panaitescu. the wave-driven current and the sediment transport patterns. MIKE 21 HD.com The paper investigate the influence of the waves in the areas of Constanta port and the North of Mamaia resort sandy coast. 900663. and the hydrodynamic simulation with MIKE 21 HD. simulation. port. Key words: wave.75m in the entire area. Faculty of Naval Electro-Mechanics. Mamaia. Abstract: Purpose of the work: The harbour is on a sandy coast consisting of sand with d50=0. We are looking at an area that spans 10 000 m in the long-shore direction and 2500 m in the cross-shore direction. Mariana Panaitescu & Iulia Alina Anton Constanta Maritime University. Finally the data are visualized flow. Romania Paper ID: G-21 THE INFLUENCE OF THE WAVES IN THE AREAS NEAR THE PORT Fanel-Viorel Panaitescu. The port has an asymmetric design that protects them from the sea. At the other open boundaries symmetry boundary conditions are used. but around the mean direction of wave propagation (2700) a cosn distribution of wave energy is used. The frequency spectrum is of JONSWAP type.70 mm and sg=0.00 s. It is used the wave simulation with MIKE 21 PMS. 276 . Irregular. Waves move over a water level corresponding to MWL=1m. marianapan@yahoo. Constanta. directional waves move towards the coast from 2700 (West direction). coast. 104 Mircea cel Batran Street.61 m and Tp=10. level and influence over the area of the coast. The time slots are set to five seconds and the simulation runs for ten hours to ensure stable conditions. The analysis was conducted considering a loaded port-container vessel. the double bottom structure is permanent subjected to compressive load. Faculty of Navigation. 104 Mircea cel Batran Street. 900663. nicoleta. Because of minimization of ballast quantities. Thus. With the enlargement of container ships to the Post Panamax vessels the breadth to depth ratio tends to be increased comparative to those of Panamax container ships that present restriction related to maximum breadth of the ship. as resulted from metacentric height calculation have adequate stability even if the ballast water is not loaded in the double bottom tanks. Nicoleta Acomi.eu Container ships carry cargoes that are considered light from the weight point of view compared with their volumetric capacity. the Post-Panamax container ships. The current studies reveal the impossibility for Panamax container ships to comply with the minimum metacentric height value of stability without loading ballast water in the double bottom tanks. the frequency with which the still water vertical bending moment reaches close to the allowable value increases.acomi@cmu-edu. This study aims at analysing the ships‟ behaviour in different conditions loaded/unloaded and carrying ballast water in the double bottom tanks.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. In contrast. 277 . this study will emphasize the level of loading capacity where the Post-Panamax vessels require to take ballast water in the double bottom tanks. Romania Paper ID: G-22 COMPARATIVE ANALYSIS OF DIFFERENT LOADING CONDITIONS ON LARGE CONTAINER SHIPS FROM THE PERSPECTIVE OF THE STABILITY REQUIREMENT Costel Stanca. due to metacentric height variation. ships‟ stability. By calculating the metacentric height that influences the port container vessel stability for vessels carrying containers in a limited number. different by maximum allowed for that type. Constanta. Abstract: Key words: metacentric height. This fact makes the still water vertical bending moment to be in hogging condition. Romania Corresponding author: Nicoleta Acomi. Cristian Ancuta & Stefan Georgescu Constanta Maritime University. Mamaia. Dangerous actions that operators cause can be classified in three main types of errors and two forms of violation of rules. However the rate maritime accidents are still high. shipping industry had a priority to improve the ships structure and systems accuracy to reduce the incidence of accidents and to increase efficiency and production. Abstract: Key words: human errors. 278 . Radu Hanzu-Pazara & Anastasia Elena Duse Constanta Maritime University. This relationship can be expressed by the following equation: violations of rules plus error may lead to injury. any deviation will lead the person who breaks the rules in an area of high risk and danger. 104 Mircea cel Batran Street. Violation of safe working procedures is not just a matter of carelessness and recklessness of the decision makers. human elements. Mamaia. This paper describe the major components and causing categories starting with the nearest accident level which is malware. ramona_bjn@yahoo. Violation of the rule itself may not be harmful but their violation it will implement the one who violates in situations in wich the errors that will come will have almost certainly unpleasant consequences. Constanta. 89-96% of total number of collision. Over the last years. Studies have shown that human error contributes to 84-88% of the total number of accidents suffered by oil tankers. accidents. the study of human factors became an important area of concern. VIOLATIONS OF RULES AND ERRORS Ramona Tromiadis. Around 75%-96% of maritime accidents are generally attributed to human error or associated with human error.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. 79% of total tug grounding. death and damage.com Human errors are the predominant cause of maritime accidents. This is due to the fact that the system precision and the ship's structure are only a small part of the safety equation. dangerous actions. Resulting situation can sometimes become much worse because those who consistently break the rules often involve that nobody else will break the rules. The maritime system is a system coordinated by human. so an important factor in causing accidents is the human error. Because of the large scale of damage suffered by maritime industry with the implication of human errors as the main cause for the accidents. errors and violations of the rules. at least not at the same time. Romania Coresponding author: Ramona Tromiadis. Dangerous actions taken by operators generally have two forms. Assuming that safe operating procedures are well established. malware. 75% of total number of grounding and 75% of fire and explosion. 900663. Factors that lead to deliberate disobedience extend far beyond the individual psychology in direct contact with labor risks and include major organizational problems. Romania Paper ID: G-23 HUMAN FACTORS ISSUES IN MARITIME INDUSTRY. ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Although. Romania 3 Project Masters Nigeria Ltd. The subject of this paper is to analyse one portcontainer ship‟s behaviour in different weather conditions. In order to avoid surf-riding and broaching the master should reduce speed to less than the critical speed. Synchronous rolling motion. When sailing in adverse weather conditions. maritime transport. including capsizing. Even if the weather forecast is transmitted to vessels. hull geometry. Mamaia. The method consists in using one specially developed software which takes into account the main particulars. 13235. Constanta. Alina Lucia Bostina2.acomi@cmu-edu. ship handling. actual stability and dynamic characteristics of the individual ship in the real voyage conditions. 279 . Nicoleta Acomi2 & Ovidiu Cristian Acomi3 1 2 CMA CGM. has approved the Guidance to the master for avoiding dangerous situations in adverse weather and sea conditions. France Constanta Maritime University. Romania Paper ID: G-24 OPTIMIZING SHIPS’ BEHAVIOUR WHEN SAILING IN FOLLOWING SEAS Aurel Bostina1. Km 14. and therefore the master should reduce speed or change course in case of large surge accelerations. The Maritime Safety Committee.. Adverse weather conditions include wind induced waves or heavy swell. Port Harcourt. This diagram will allow us to analyse the situation and to determine the ways for avoiding dangerous conditions by changing the course or the speed. It should be noted that surf-riding and broaching may occur even at lower speeds. nicoleta. Navigation Department. No. The results should be regarded as a supporting tool during the decision making process. in order to obtain the Dangerous Zone diagram. and its probability of occurrence in a particular sea state may differ for each ship. The reaction of a ship to dangerous phenomena depends on the actual stability parameters. Reduction of intact stability caused by riding on the wave crest at midship.eu Abstract: Ships are built for sailing and transporting cargo on seas and oceans in weather conditions that are not friendly all the time. a ship is likely to encounter various kinds of dangerous phenomena: Surf-riding and broaching. Quai d‟Arenc. Nigeria Corresponding author: Nicoleta Acomi. 900663. Parametric rolling motion or Combination of various dangerous phenomena. 4. Marseille. ship size and ship speed. Key words: following seas. the way of acting it is a matter of officers‟ experience. Port Harcourt Aba Expressway. Some combinations of wave length and wave height under certain operation conditions may lead to dangerous situations for the ships. Mircea cel Batran Street. No. under the IMO. and for assisting them to avoid dangerous phenomena that they may encounter in such circumstances. equipment and persons on board. This implies that the vulnerability to dangerous responses. the International Maritime Organization came across this situation by developing an instrument to provide masters with a basis for decision making on ship handling in adverse weather and sea conditions. 104. Marine Manager. Marine Department. which may lead to capsizing or severe roll motions causing damage to cargo. Piezoelectric materials can act like actuators and sensors. Romania Corresponding author: Raluca Maria.aileni@gmail. A piezoelectric polymer fiber or yarn have the advantage that is flexibility and low weight. Abstract: 280 . There are device which consist in usage of harvesters energy mounted in wearable devices for harvest mechanical energy due to human walk or running. morphing of structures and energy harvesting. The energy harvested by using the polyvinylidine fluoride fibers mounted for harvesters has been used to power a radio frequency (RF) tag system to demonstrate the feasibility for potential self-powering applications. In this case for deposition of thin film is required a textile surface modification by using plasma nanotechnology. a sensor in a waistband monitoring heart activity) and for energy harvesting devices based on textile structures. Romania Paper ID: G-25 PERSPECTIVES IN ACOUSTIC MODELLING FOR HARVESTING ENERGY IN COMPLEX ENVIRONMENT BY USING PIEZOELECTRIC FIBRES Raluca Maria Aileni INCDTP.maria. health monitoring. raluca. At the other side piezoelectric ceramics have high piezoelectric performances with inconvenient that are hard and inflexible. Scientific literature shows that till present were tried to develop many devices by using piezoelectric fibres composites. Aileni. By using the polymer matrix and piezoelectric ceramic particles can be obtained a composite product with mechanical flexibility.com The paper presents aspects regarding integrating of polyvinylidine fluoride into technical textile composite structure by using thin films. Bucharest.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. which requires storage and collecting energy system that couples vibration to a transduction mechanism. Mamaia. These piezoelectric fibers can be waved or knitted in textile structure or may be present like fibers in nonwoven structures for noise control and energy harvesting. Harvesting of sound energy is to convert it into electrical energy. The areas of usage of these structures based on piezoelectric particles or fibres are for medical (sensors for patients breathing and heartbeat. including vibration and noise control. Constanta. sewage discharges. NOx control. garbage management plan. shipboard oil pollution emergency plan (SOPEP). including recording system. ship. Mamaia. air pollution-SOx control. All personnel can trained and evaluated on environmental issues prior and after embarkation. Romania Corresponding author: Panaitescu Mariana.com Abstract: We present a successful implementation of Environmental Management System (EMS) in a shipping company. Results: Key words: implementation. management. Romania Paper ID: G-26 AN APPROACH TO THE IMPLEMENTATION OF ISO 14000 AT A SHIPPING COMPANY Fanel-Viorel Panaitescu & Mariana Panaitescu Constanta Maritime University. fuel oil management plan. The EMS study includes: tank soundies. environmental tag system (ETS) which introduce non re-usable numbered seals. training. the crew training procedures. Faculty of Naval Electro-Mechanics. 281 . evaluation. record keeping. environmental weekly and monthly report. environment. company. non tank vessel response plan (NT-VRP). ballast water management plan. marianapan@yahoo. The all environmental requirements to be stricktly followed all over the world. sludge discharge. pollution prevention equipment (OWS. vessel general permit (VGP) .The rules of new EMS present: new open reporting system. the environmental defect reports system – extraordinary E/R operations and leakages log book.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20.bilge water discharge. 104 Mircea cel Batran Street. fleet engineering survey forms. OCM. Incinerator and Sewage Treatment Plant). test. Research and methodology: In this paper we obtained the tests and evaluation. 900663. The EMS of the each company must revised and expanded and new analytical requirements included in it. This new EMS concept is available to everyone on board and must studied by every seafarer. Constanta Shipyard. Constanta. and simulation results showed the validity computational tool to improving the prediction accuracy. simulation. Abstract: Key words: heave. In our paper we try compare different software that are using to predict the manoeuvrability of the ships applying the predicted nonlinear wave field with the current state of the vessel motions.eu Nowadays there is many computational tools that is being developed to predict the sea keeping and dynamic stability performance of a steered ship in large waves. Mamaia. Faculty of Mechanical Enginering. Romania Paper ID: G-27 NEW APPROACH IN SHIP MANOEUVRABILITY PREDICTION Remus Zăgan1. Constanta. OCTOPUS. Ship motion forecasting is very important for safety of ships especially when operating in large waves. pitch and roll motions. No. Romania 2 Ovidius University of Constanta. Faculty of Naval Electromechanics. 124. Romania 3 Over Seas Manager Ship Repairs & Conversions Projects. zagan. No. Blvd. 282 . It is known that the ship motions have dynamical and nonlinear characteristics in the ocean and sea environments.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Mihaela-Greti Chiţu2 & Emil Manea3 1 Constanta Maritime University. 900527. Different simulations was performed and made in comparison with other test simulations cases for different value of rudder angle. We try to find the best method that can be applied to ship manoeuvrability prediction.remus@cmu-edu. Mamaia. 104. Greece Representative Office Coresponding author: Zăgan Remus. Mircea cel Bătrân Street. MATLAB. and they provide data to identify areas for continued improvement going forward. Constanta.in this case vessels will have no other choice only to use lower sulphur content.arsenie@zmc. CLEAN PORT AN EXAMPLE IN GREEN SHIPPING Andreea Aresenie & Mihaita Jenaru Maritime University Constanta. The reduction of diesel particulate matter emission per tonne of cargo by 75percent by 2015 and 80percent by 2020 and also the reduction of gas emission per tonne of cargo by 10percent by 2015 and 15percent by 2020. The ECA will make a dramatic impact on diesel particulate matter emission. Since these standards are now regulatory requirements that established the North American Emission Control Area (ECA). Mihail Jora Str. The 2020 target for ocean –going vessels shifts to efficiency improvements which will increase focus on greenhouse gas and also reduce operating costs for vessels. or alternative technologies. Romania Corresponding author: Arsenie Andreea. Mamaia. The marine ports need to demonstrate a real commitment to reduce gases. No 2.The recent inventories show considerable progress in reducing emissions since 2006.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. smog – forming and toxic pollution.1 percent sulphur content. The existing performance measure for 2015. the second phase of ECA goes into effect which will require the use of fuel with no more than 0. Abstract: 283 .ro In this article we intend to discuss the ports development inventories of air emission . Romania Paper ID: G-28 REDUCING DIESEL EMISSIONS GASES IN PORTS. is to meet IMO standards for sulphur content in fuel. In 2015. The target is for port and carriers to participate in port-designed or third party certification programs that promote continuous improvement. The International Maritime Organization (IMO) takes the problems of shipping air pollution very seriously and they already set a timeframe to reduce progressively fuel NOx content.. the strategy‟s revised target is for vessels to surpass the ECA requirements by burning even lower sulphur content fuel while at berth. andreea. com The European Union politics in the energy field. 900218. 104 Mircea cel Batran Street. namely: the reduction of greenhouse gas emissions by at least 20% from the level of those of 1990. lift force. Faculty of Navigation and Naval Management. competitiveness and security of energy supply. ionela. Faculty of Navigation and Naval Transport. with significant advantages in reducing the energy consumption in order to ensure propulsion. as a result of the forwarding of the ship. In this context. Ionel Popa2 & Marian Ristea3 1 Constanta Maritime University. Romania Paper ID: G-29 THE RIGID BI-FUNCTIONAL SAIL. for the next period. NEW CONCEPT CONCERNING THE REDUCTION OF THE DRAG OF SHIPS Ionela Ticu1.1. Constanta. 313 Splaiul Independenței. by burning fossil fuels. wind energy. Fulgerului Street. rigid sail. This may have the role of capturing wind energy and the role of deflector to reduce the drag through a suitable use of the air flow coming from the bow direction.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. we propose to locate on board of the ships. the rigid bi-functional sail. Mamaia. The “Energy . Romania 3 "Mircea cel Batran" Naval Academy. until 2020 is based on three fundamental objectives: sustainability. 284 . a new device.ticu@yahoo. Romania 2 University Politehnica of Bucharest. a 20% increase in the share of renewables in the total energy consumption and a target of 10% biofuels in the energy consumption for transports. in order to produce or save a part of the propulsive power produced by the main propulsion machines. Abstract: Key words: unconventional energy. 060042 Bucharest. bi-functional sail. 900663. sailing propulsion. no.Climate Changes” program sets for the EU a number of objectives for 2020. known as the “20-20-20 objectives”. Constanta Corresponding author: Ionela Ticu. computer assisted learning. knowledge management services. Faculty of Navigation and Naval Transport. In Constanta Maritime University (CMU). The use of computer assisted learning methodologies in all studies is becoming an important resource in Higher Education. using e-Learning and Knowledge Management Services (KMS) is very important and we apply it effectively to achieve strategic objectives. 900663. All the information from the virtual educational platform remain open space. 104 Mircea cel Batran Street. initiatives and policies. online support and assisting special training through live seminars and interactive labs to develop a virtual university model. to permit vision and learning analysis. communication between participants and continued after graduation. Constanta. We intend to improve the concept of e-Learning using virtual terminals. open source software. access. such as collaboration. the production of learning demonstrators and testing. engineering education. The authors propose to increase the quality of Engineering Education programs of study at European standards. Abstract: Key words: virtual university. so we can talk about creating and maintaining a community of graduates. virtual University. alexandra.eu The paper presents the most important aspects of innovation in Engineering Education using Computer Assisted Learning. Based on large datasets the study tries to improve the concept of e-Learning teaching using the revolutionary technologies. Mamaia. where the authors implemented other educational platform in Technological High Schools from Romania used over 1000 teachers. VIRTUAL UNIVERSITY MODEL Alexandra Raicu1 & Gabriel Raicu 2 1 Constanta Maritime University. We‟ll also present in this paper a case study under EU funded project POSDRU. use and reuse and knowledge archiving. identifies new sources of technology and ideas. Constanta. The new concept present in this paper is that the teaching and learning will be interactive and live. The term KMS can be associated to Open Source Software. sharing and good practice.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. Open Protocols and Open Knowledge licenses. Faculty of Naval Electro-Mechanics. Open Standards. Another experience of the authors is the implementation of MariTrainer Wiki educational platform based on Dokeos and DekiWiki under MARICOMP and MEP Leonardo da Vinci Project. Our work is based on our university datasets collected during last fourteen years using several e-Learning systems. a partnership with them. In CMU Virtual Campus we have today over 12500 active users. Romania Corresponding author: Alexandra Raicu. We intend to encourage computer assisted learning and innovation as sources of competitive advantage. The new and modern techniques are the flexible learning courses. 285 . 104 Mircea cel Batran Street.raicu@cmu-edu. 900663. sharing and collaborative communication. Romania Paper ID: G-30 INNOVATION IN ENGINEERING EDUCATION THROUGH COMPUTER ASSISTED LEARNING. We have experience in this field since 2000 year using Moodle as KMS in our university. capture and explication. Romania 2 Constanta Maritime University. Every European University must have a department which aims to provide computer assisted learning using knowledge creation through learning. The equations needed to determine the behaviour of an entire complex model are often so complicated that it would be impractical to derive or solve them. along with the basic understanding of dynamic response of systems with one degree of freedom and simple continous beams. and tetrahedron.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. The finite element method solves this problem by dividing the complex model into an assembled group of finite elements. Constanta. 2 1 “Constanta Maritime University”. Department of Fundamental Sciences and Humanities. and assigned material and element properties. is vital to verify testing and analysis and to develop new structures. ship. and experience with static analysis of marine structures like jacket platforms and ships. 900663.com The aim of this paper is to design and dimension marine structures optimally to fulfil both functional and safety demands. One of the core strengths is its ability to help you create a finite element model. alina_ion@rocketmail. By converting the geometry model into a finite element model composed of interconnected pieces. meshing plate. the computer analysis program can then use efficient mathematical equations to calculate the behaviour of the individual elements. 104 Mircea cel Batran Street. Department of Navigation. The finite element method (FEM) ensures basic understanding of the finite element method as applied on static cases including beam and plate elements. They also include connecting points called nodes. This study can improve the calculation and estimation of the effects of hydrodynamic and other loads. finite elemets. Mamaia.. Romania Paper ID: G-31 FINITE ELEMENT METHOD FOR CALCULATING MARINE STRUCTURAL DESIGN Alina Ion1. A master level of structural mechanics. 286 . Abstract: Key words: marine structures. deformations and internal forces in fixed and floating platforms and ships. The elements in a finite element model have common geometric shapes such as rectangles. Romania Corresponding author: Alina Ion. Constanta. either from an existing geometry model or through direct finite element operations. Romania 2 “Constanta Maritime University”. movements. Once the model is divided into finite elements. triangles. 900663. and how analysis models can be established for realistic structures by use of generalized coordinates and ode superposition. 104 Mircea cel Batran Street. taking into account the interdependence of adjacent elements and the assigned properties. Finite element modelling is central to the ability to perform an engineering analysis of a model using a computer. small interconnected pieces commonly referred to as a mesh. a computer can analyze the model‟s behaviour simply and accurately. Deformations and the strength of constructions are also important calculations. and must be controlled as regards the requirements of the operator and the authorities. performance. operating. Romania Paper ID: G-32 MARITIME VESSEL OBSOLENCE. Danube inland ports feeding Black Sea are investigated in order to provide comprehensive information on: number and tipes of vessels. service life. obsolence. safety and environmental effects. Major actions are needed to repair. a ship will continue to be repaired and traded until scrapped.ro Maritime vessels have long service life and great costs of building.Obsolence is regarded as a concern throughout vessel‟s entire life cycle reflects changes in expectation regarding performances in functioning. 313 Splaiul Independenței. performances. No attempt was made to differentiate between sale and purchase decisions of various owners throughout the ship‟s life since and considered that regardless of ownership. 287 . 060042 Bucharest. Performance and failure are illustrated conceptually and represented in a simplified form considering the evolution of vessels parameters during its service life. life cycle length and CO2 emissions. failure. In the proposed methodology an accumulated vessel lifecycle cost is analised and obsolence is characterized from ship‟s design. Mamaia. docking software and to insure a best practice in lifecycle management in order to reduce costs. vessel managers. Transport Faculty. While service live may differ from physical lives.dinu@upb. sometime built or even replace those scrapped when technology or demand changes determine obsolence.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. transport capacity. oana. manning. maintaining and repairing throughout their life. docking teams. renovate. life cycle. Abstract: Key words: maritime vessel. Romania Corresponding author: Oana Dinu. Recommendations are to be made in order to integrate owners. expectations about physical lives is the main factors that determines design service life. maintenance and management parameters point of view. LIFE CYCLE COST AND DESIGN SERVICE LIFE Oana Dinu & Ana-Maria Ilie Politehnica University of Bucharest. underwater acoustic communications. Mamaia. single carrier modulation. Faculty of Naval Electro-Mechanics. bottom composition. The research results were obtained for a particular underwater channel that was characterized by seasonal and daily changes of the sound speed profiles. These profiles were measured in the North-Western part of the Black Sea that belongs to Romania. underwater acoustic channel. in two regions that were named Constanta and Mangalia. The sound speed profile and other important parameters. the optimal modulation scheme is obtained and can be used to implement the digital transceiver. attenuation at the surface and bottom and the level of perturbations. digital transceiver. like wind speed. These results can be extrapolated and a future research can be conducted. Romania Corresponding author: Zărnescu George. Romania Paper ID: G-33 ON THE OPTIMIZATION OF AN UNDERWATER ACOUSTIC MODEM’S DIGITAL TRANSCEIVER George Zărnescu Constanta Maritime University. There were chosen different single and multicarrier modulation schemes. The results of these simulations were interpreted and they suggest that for the particular underwater acoustic channel and for MFSK modulation scheme. The series of weighted functions were used to simulate the transmission of signals modulated using single carrier modulation schemes like BPSK and QPSK or multi carrier schemes like FSK and MFSK. This was shown that can be done by adapting the modem‟s analog architecture to the particularities of the underwater channel.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. The most important task of an underwater acoustic modem is to transmit in a reliable way to the destination the acquired scientific data gathered from a particular location. An underwater communication link can be created between two modems or a modem and an operator. These two are large cities at the Black Sea. zarnescugeorge@yahoo. with M equal to four.com It is known that the variations of the parameters of the underwater environment cause the transmission channel to be unreliable and degrade the quality of an underwater acoustic communication. multicarrier modulation. 104 Mircea cel Batran Street. Abstract: Key words: Underwater acoustic modem. average wave height. The modem‟s digital transceiver is based on a coherent architecture. Not only the analog part of the modem must be adapted to the channel variations but also the digital part must be implemented so that the best modulation scheme can be used. 288 . 900663. Constanta. were used in an underwater acoustic simulator and the results were represented by series of impulse response functions. considering the simulation of OFDM modulation scheme. This article presents the research results of the implementation of an optimized digital transceiver of an underwater acoustic modem. creating a versatile system. 99 Burciu Ștefan. 217 Buliga Valentin. 214 A Abbas Fadhel. 60 Baier Andrzej. 122. 97. 223 Bălţătescu Oana. 242. 244 Białas Katarzyna. 47 Buluc Gheorghe. 178 Belgiu George. 186. 215. 107 Burada Cristian Oliviu. 268. 79 Bostina Alina Lucia. 159 Alhamdo Mohammed. 210 Agop Maricel. 48 Badea Nicolae. 126 Bălan Adrian Ciprian. 248 Avasilcăi Silvia. 132 Bocian Miroslaw. 283 Arhire Irina. 277. 201. 89. 279 Brabie Gheorghe. 21 Aileni Raluca Maria. Romania Author Index Bancila Simion. 87 Caliman Radu. 155 Bădănac Ana. 221. 280 Albert Gyorgy. 107. 111. 57 Anton Iulia Alina. 234 Belu Nadia. 253 Achiţei Dragoş Cristian. 168. 39. 55. 275 Butnariu Anca. 139. 177 Baroiu Nicuşor. 54 Bash Al-Maliky Salam. 39. 73. 243. 111 Axinte Tiberiu. 255 Atashafrazeh Majid. 117. 184. 118. 279 Bostina Aurel. 145. 217. 267. 97. 216. 235 Axinte Mihai. 101 Ai Ling. 253 Barhalescu Mihaela. 240 Besliu Vitalie. 177 C Caileanu Adrian. 52. 208 Bujor Adriana. 273 Arsenović Milica. 99 Bordea Nicolae. 79 Bingöl Ferhat. 50. 143. 252 Bălţatu Mădălina Simona. 105. 57. 47. 131. 68 Broitman Esteban. 271. 77 Boca Maria Loredana. 105. 60 Abrudeanu Marioara. 98 Alexa Octavian. 104 Banaś Wacław. 213 Chelariu Romeu. 173. 110. 91 Cherecheş Tudor. 133 Bolcu Dumitru. 103 Abbas Firas. 264. 216. 256. 179. 246 Agafitei Iuliana Georgiana. 170. 83 Ancuta Cristian. 64 Anghel Daniel – Constantin. 248 Blaga Florin. 142. 137. 169. 97 Buidoş Traian. 203. 76 Chiţu Mihaela-Greti. 116 Bahadirov Gayrat. 198. 241 Acomi Nicoleta. 102. 210. 48 Balaniscu Bogdan. 102. 197. 59. 154. 187 Budeanu Luiza Camelia. 271 Badescu Gabriel. 246 Apostolescu Zoia. 245 Abdukarimov Abdusalom. 269. 120. 85 Cimpoeşu Nicanor. 173.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. 40 Aresenie Andreea. 186. 200. 67. 168. 92 Ceccarelli Marco. 189 Chiotoroiu Brinduşa. 192 Cerbu Camelia. 220. 38. 252 Carja Gabriela. 20 Buchacz Andrzej. 121. 38. 147 B Bączkowicz Magdalena. 199 Cicic Dumitru-Titi. 202. 93. 188 Adolphe Dominique. 51. 234 Carcea Ioan. 160 Amza Gheorghe. 279 Acomi Ovidiu Cristian. 208 Albut Aurelian. 96 Cărăușu Constantin. 100 Berbinschi Silviu. 165. 90 Cha Hyun Ae. 214. 80 Andrić Ljubiša. 39. 175. 184 Baier Maja. 218. 123. 38. 115. 97. 276 Apetrei Ancuta Vasilica. 139 Bica Daniela. 131. 88. 240 Arsenie Andreea. 277 Andrei Gabriela. 154. 116 Badescu Rodica. 241 Ciortea Elisabeta Mihaela. 243 Barca Eduard Sebastian. 219. 179 Blăjină Ovidiu. 58 Benchea Marcelin. 40 Anania Florea Dorel. 54 Bernstein A. 88. 52 Chirita Daniel. 222 Avramescu Ana-Maria. 114 Boiangiu Mihail. 108. 109 Chaudhari Shrirang. 115. 266.. Mamaia. 279 Adam Andrei. 75. 204. 263 Chirita Bogdan Alexandru. 282 Cholewa Adam. 205 289 . 205 Huang Ying-Chi. 59 Ghiţă Simona. 197. 129 Goanta Adrian Mihai. 254 Dohotaru Ion. 163. 143. 156. 203. 37. 204 Frumusanu Gabriel. 278 H Hanzu-Pazara Radu. 141. 198. 165. 242 Gwiazda Aleksander. 133 Cretu Gheorghe. 39. 245 Fenik Leonid. 115. 144. 252 Foit Krzysztof. 88. 204. 137. 170. 80 Dirja Marcel. 124. 146 Doroftei Ioan. 115 Dobrzańska-Danikiewicz Anna. 73 290 . 52. 224. 78 Dascalescu Anca-Elena. 229. 91. 164. 151 Grubka Roman. 184 Gradinaru Dorin. 115. 62 Comaneci Radu. 161. 142. 263. 270 Costache George. 224. 176 Deleanu Dumitru. 166. 94. 157. 274. 232. 125 Grabowik Cezary. 22 Grebenișan Dan. 233 Fleacă Bogdan. 202. 251 Hnatiuc Mihaela. 235 Epureanu Alexandru. 202. 105. 193. 265. 173. 135. 59. 197. 77. 70 Gligor Adrian. 46 Dordescu Marian. 221. 43 Filip Florina-Cristina. 140. 266. 59 Gheorghiță Vlad. 202. 277 Ghenghea Laurentiu Dan. 243 Hnatiuc Bogdan. 127. 266. 237 Golam Ali. 246 Ćwikła Grzegorz. 201. 126 I Iacob Marius. 68 Grosan Nicolae. 88. 240 Galateanu (Avram) Elena. 43 Guo Tzung-Fang. 155. 121. 193 Conduraru Ionel. 145. 200. 44 Gostev Ivan. 265 Curteza Antonela. 21 Geonea Ionut. 203.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. 260. 120. 100 Enache Ioana Catalina. 25. 186 Duse Anastasia Elena. 176 Dumitru Nicolae. 163. 100 Cupșa Ovidiu Sorin. 197. 287 Dinu Simona. 201. 194 Dragnea Daniel. 30 Gurau Gheorghe. 148 Hirbu Arefa. 79 Grigoraş Cosmin Constantin. 274 Grosu Dănuţ. 207 Herghelegiu Eugen. 205 Fradinho João. 172 Grabowski Łukasz. 128 Conduraru (Slatineanu) Alina. 152 Giza Andra. 198. 160 Gołda Grzegorz. 223 Hetmanczyk Mariusz Piotr. 79 Crimu Carmen-Iulia. 238 Fleacă Elena. 47. 104 Guzgan Dorin. 247 Dijmarescu Manuela-Roxana. 278 Hashim Mohammed. 205 D Darie Vlad. 271 F Fattah Abbood Sahar. 107 Florea Raluca Maria. 270. 51. 67. 201. 149 Dimitrescu Andrei. 198. 30 E Earar Kamel. 73. 146 Cohal Viorel. 251 Hodaj Fiqiri. 225. 152 Crafăleanu Andrei. 171. 238 Florea Iulia. 251 Girnita Ion. 180. 193 Constantinescu Eliodor. 212 Hryniewicz Przemysław. 192 Georgescu Ștefan. 187 Ge Ziyi. 192 Coroiu Adriana Mihaela. 103 Herbuś Krzysztof. 154 Coman Costel Catalin. 189 Dragomir Cristina. 40 Dinu Oana. Romania Ciucur Violeta. 200. 164 Gonçalves-Coelho António. 231 Costache Carmen. 269 Dumitrache Constantin. 262 Copilusi Cristian. 137. 229. 42 Gheorghiță Cătălin. 136. 72 Herghiligiu Ionuţ Viorel. 203. 222 Gałęziowski Damian. 261 Dragu Vasile. 137. 158. 200. 186. 181 Graule Thomas. 71. 50. 28 Hozdić Elvis. 162. 150. 271 G Gadow Rainer. 44 Franiasz Jakub. 149 Dijmarescu Maria-Cristina. Mamaia. 35 Mazăre Alin. 64 Milosevic Olivera. 226 Killinger A. 229 Mihut Nicoleta Maria. 135. 97 Irla Artur. 184 Mančić Lidija. 136.. 113. 31 Istrate Bogdan. 101. 95 Iftimie Nicoleta.. 45 Neagu-CogălniceanuCamelia. 35 Kosobudzki Mariusz. 58 Mazuru Sergiu. 119. 211 Mareci Daniel. 70 Marin Alecsandru. 253 M Macovei (Cîrlan) Simina.. 225. 109 K Kalinowski Krzysztof.. 189 Łukowiec Dariusz. 286 Ionescu Daniela. 63 Nedelcu Dumitru. 223 Kondo Akira. 121. 151. 195 Liaw Der-Jang. 166. 106 Kulisiewicz Maciej. 140. 232. 244 Marinescu Marin. 40 Nutu Catalin. 240 Kobi Abdessamad. 100. 238 Nejneru Carmen. 44. 185. 123 L Lacor Chris. 126 Mihai Bogdan. 158. 211 Kempa Wojciech. 144. 153 Negoiță Octavian. 87 Ianăşi Aurora Cătălina. 164 Kauppinen Esko I. 159. 46. 172 Kamanina Natalia V. 264. 30 Jeon Jae-Ho. 159 Ilie Sorin. 283 Jeng Jun-Yuan. 250 Kozawa Takahiro. 233 Marc Gheorghe. 129 Mohora Cristina. 35 Navka Ilya. 51 Nicolae Viorel. 37. 102 J Jamroziak Krzysztof. 163. 228 Krieg P. 48 Lupu Mihaela Luminiţa. 262 Mihai Petruța. 97 Marascu-Klein Vladimir. 59. 249. 171 Jenaru Mihaita. 157. 37. Mamaia. 129 Nistoran Diana. 204 Kovaci Maria. 190 Martinaş George. 89 Ilie Ana-Maria. 103 Majzner Michał. 215 Naito Makio. 120. 110 Nguyen Trung-Thanh. 58 Ionici Cristina. 156. 30 Lixandru Paul. 224. 164. 114 N Nacu Cosmin-Mihai.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. 34 Kela Paul. 241 Miriţoiu Cosmin Mihai. 140. 138. 240 Król Mariusz. Romania Iacoban Sorin. 229. 87. 44 Munteanu Corneliu. 157. 148 Mierzwa Piotr. 87 Kampa Adrian. 141. 100. 24 Minciună Mirabela Georgiana. 119 Nitoi Dan Florin. 238 Negoiță Olivia. 166. 144. 241. 223 291 . 104. 253 Mureseanu M. 114 Janicki Damian. 43. 69. 189 Memet Feiza. 224. 250 Ionescu Laurenţiu Mihai. 172 Khenoussi N. 114 Kost Gabriel. 236 Mourão António. 24 Manea Emil. 129 Ioanid Alexandra. 287 Ilie Constantin-Ovidiu. 41 Marin Laurentiu. 89. 113. 249.. 282 Manea Ion.. 156. 84 Janik Witold. 35 Krenczyk Damian. 87 Marguta Daniel. 50. 246 Kiljan Anna. 87. 254 Lupescu Octavian. 225 Ion Alina. 29 Nicodim Vlad Mihai. 163. 33 Kamel Earar. 145. 152 Manole Vasile. 175 Matsuoka Mitsuaki. 48 Manoliu (Nuțescu Duduman) Cătălina. 193 Mahdi Qasim Saleh. 45 Miličić Ljiljana. 272 Michalski Piotr. 58 Mitran Gabriela. 182 Mikhaylov Aleksandr. 145. 141. 99 Misztal Agnieszka. 65. 27 Langer Paweł. 92 Muscalu Iulia. 166. 281 Panaitescu Mariana. 38 Petre Cristian Cătălin. 118. 153 Plesu Gheorghe. 197. 275 Roșca Mircea. 266 Skolud Bozena. 271 Popa Septimiu. 204. 285 Raicu Gabriel. 181 Stajilov Victor. 203. 150 Popa Valentin. 277 Stanciu Tudor. 268. 130 Oniga Valeria-Ersilia. 120. 137. 284 Rizea Vasile. 44. 83 Peng Ruixiang. 110 Pescaru Alexandru. 226 Rudenko Evgeniy.. 207 Ojegov Alexandr. 179 Pena Andra Elena. 223 Rontescu Corneliu. 253 Plăvănescu (Mazurchevici) Simona. 143. 99 R Rabanal Maria Eugenia. 168 Plaiasu Adriana-Gabriela. 48 Popa Mihaela. 74 Paszek Alfred. 268. 85 Roșca Eugen. 61 Sękala Agnieszka. 71. 41 Stan Daniel. 243 Spalinski Krzysztof. 21 Ovidiu Blăjină. 176. 144. 194 Radojević Zagorka. 99 Roszak Marek. 227 Paunoiu Viorel. 244 Rusu Gabriela. 246 Schnakovszky Carol. 140. 31. 79 Sitek Wojciech. 113 Spinu Sergiu. 65. 243. 78 P Panait Cornel. 167. 269. 102 Sobek Michał. 54 Oanta Emil. 230 Ruscă Aura. 285 Raveica Ionel Crinel. 157. 134 Pele Alexandru. 133 Petriceanu Stefan-Constantin.Seok. 162. 198. 229. 119 Savin Adriana. 228 Skowera Michał. 176. 218. 220 Rusu Ioan. 152 Popa Ionel. 21 Perju Manuela Cristina. 179 Stanca Costel. 174 Stan Liviu-Constantin. 258 Sandu Andrei Victor. 202. 259 Popa Mădălina. 270. 66. 265. 47. 230. 41 Ristea Marian. 275 Ruscă Florin. 184 Soleimani Sajjad. 242 Piticari Ioan-Liviu. 281 Paprocka Iwona. Mamaia. 163 Soare Elena. 267. 29 Pasare Minodora Maria. 69. 85 Pinzaru Natalia. 59. 230. 53. 79 Pop Andrei. 251 Saleh Mahdi Qasim. 37.M. 41 Pomazan Valentina Mihaela. 177. 39 Puiu Costescu Elena. 177 Panaitescu Fanel Viorel. 89 Santos Antonio Gabriel. 92 S Sabau Adrian. 177 Ociepka Piotr. 242. 284 Popa Liliana Viorica. 87 Stǎnǎşel Iulian. 57 Racu (Cazacu) Cristina-Magda. 255 Radu Maria Crina. 133 Prenta Gabriel. 172 Park Hong. 263 Soare Vasile. 254 Sezek Sinan. 49. 108 Preda Andrei. 141. 266 Stănescu Marius Marinel. 275 Rushica Ivan. 242. 271. 238 Puscasu C. 105 O Oancea Nicolae. 64. 89 Schacher Laurence. 161. 245 Sandiuc Corina. 121. 151. 72 Scurtu Ionut Cristian. 143 Petculescu Petre. 142. 152 Pruteanu Octavian. 175 Stan Teodor. 268. 268. 106 Sjolin Jan. 72 Raicu Alexandra.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. 219. 156. 101. 81 Rusnac Vladislav. 94 Popa Teodor. 101 Puncioiu Alin-Marian. 267. 275 Roşca Vîlcu. 188 Popa Gabriel. 271. 205. 82 Ouyang Xinhua. 125 Sintea Sorin. 272 Predoi Mihai Valentin. 117. 153 Sava Alin-Constantin. 24 292 . Romania Rachieru Nicoleta. 201. 200. 150 Sibirtseva Elena. 244 Olaru Ionel. 138. 176. 42 Pecingina Olimpia Mioara. 38. 119 Płaczek Marek. 276. 180. 190 Purcărea Anca Alexandra. 269. 253 Robledo Christian. 142. 52.Viorel. 265 Stingaci Ion. 244 Trinca Carmen. 38. 159. 66. 85 Vitalariu Anca. 115 Stefanica Cristina. 32. 243. 56. 104. 73. Mamaia. 108 Ș Ștefănoiu Radu. 49. 195. 174 W Wang Po-I. 89 Świder Jerzy. 81 Toncu Dana-Cristina. 110 293 . 282 Zaharia Carmen. 21 Ț Țugui Cătălin-Andrei. 126 Z Zăgan Remus. 174 Tulcan Liliana. 30 Wylenzek Dawid. 101 Van De Voorde Marcel. 100 Sturm Roman. 227 Wójcicki Tomasz. 160 Ticu Ionela. 122 Vlase Aurelian. 151. 39. 77. 190 Tsai Chou-Yi. 171 Zbigniew Monica. 254 Wróbel Andrzej. 30 Zhang Xingye. 117. 30 Tulcan Aurel. 133 Vedinaș Ioan. 118. 183 Zbilski Adrian. 54 Terzić Anja. 273 Vasić Miloš. 199 Sydorova Elena. 119. 89 Stîngă Viorela-Georgiana. 196 Wu Chun-Hsien. 106 Tasca Dan Gabriel. 78 Volf Irina. 208 V Vaideanu Dorin. 269 Steigmann Rozina. 81 Stoicev Petru. 288 Zbiciak Rafał. 91 Vizureanu Petrică. 278 Truţă Marian. 23 Tampu Nicolae Catalin.ModTech International Conference Modern Technologies in Industrial Engineering June 17-20. 46. 52. 26 Varsami Anastasia. 72 Tański Tomasz. 274 Varsami Corina. 190 Vîrlan (Chivu) Oana Roxana. 199 Zemczak Marcin. 273. 108 Tamas Razvan. 264. 30 Talmaciu Adina. 40 Teodor Virgil Gabriel. 110. 236 Toca Alexei. 284 Tilină Dana Iuliana. 69. 92. 87 Tromiadis Ramona. 255 Vasile Ovidiu. Romania Stefan Ovidiu. 242. 243 Toncu Gheorghita. 83. 255 Theeb Maathe. 30 Wang Wei-Ting. 159 Vînturiş Valentin. 89 T Tai Yian. 236 Zărnescu George. 38. 228 Zhang Qiang. 234 Zapciu Miron. 89. 145. 190 Vilau Radu. 206 Wolany Weronika. 151. 30 Wittbrodt Piotr. 241 Vladu Gabriel. 158. 243 Topala Pavel. 64. 45 U Ursu Mircea-Petru. 244 Strugaru Sorin Iacob.