Demi 2011 proceedings

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Demi 2011 proceedings

  1. 1. University of Banja LukaFaculty of Mechanical Engineering26th - 28th May 2011 DEMI 2011 10th Anniversary International Conference on Accomplishments in Electrical and Mechanical Engineering and Information TechnologyPROCEEDINGS ZBORNIK RADOVA BANJA LUKA, May 2011.
  2. 2. PROCEEDINGS ZBORNIK RADOVA University of Banja LukaFaculty of Mechanical Engineering BANJA LUKA, May 2011.
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  4. 4. PROCEEDINGS OF THE 10th ANNIVERSARY INTERNATIONAL CONFERENCE ON ACCOMPLISMENTS IN ELECTRICAL AND MECHANICAL ENGINEERING AND INFORMATION TECHNOLOGY Under patronage of: Ministry of Science and Technology of the Republic of Srpska, Ministry of Industry, Energy and Mining of the Republic of Srpska and City of Banjaluka Publisher: Faculty of Mechanical Engineering Banja Luka For publisher: PhD. Miroslav Rogi , Full Professor Editor in Chief: PhD. Gordana Globo ki-Laki , Associate Professor Organizational board: Gordana Globo ki-Laki , PhD. Associate Professor, Chairman Miroslav Rogi , PhD. Professor Snežana Petkovi , PhD. Associate Professor Zdravko Milovanovi , PhD. Associate Professor Petar Gvero, PhD. Associate Professor Strain Posavljak, PhD. Assistant Professor Darko Kneževi , PhD. Assistant Professor Tihomir Latinovi , PhD. Assistant Professor Valentina Golubovi -Bugarski, PhD. Assistant Professor Milan Tica, MSc. Mechanical Engineering Stevo Borojevi , MSc. Mechanical Engineering Bojan Kneževi , MSc. Electrical Engineering Branislav Sredanovi , BSc. Mechanical Engineering Branislav Jovkovi , BSc. Mechanical Engineering Milivoj Stipanovi and Ljubo Glamo i , PhD. Ministry of Industry, Energy and Mining of the Republic of Srpska Technical processing: Milivoj Stipanovi Circulation: 190 iii
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  6. 6. SCIENTIFIC BOARDBlagojevi Aleksa, Faculty of Mechanical Engineering Banjaluka, B&HBlagojevi Drago, Faculty of Mechanical Engineering Banjaluka, B&HBobrek Miroslav, Faculty of Mechanical Engineering Banjaluka, B&HBojani Pavao, Faculty of Mechanical Engineering Beograd, SerbiaBulatovi Miodrag, Faculty of Mechanical Engineering Podgorica, Montenegro osi Ilija, FTN Novi Sad, SerbiaDaki Pantelija, Faculty of Mechanical Engineering Banjaluka, B&HDolo ek Vlatko, University of Sarajevo, B&H uri kovi Veljko, Faculty of Mechanical Engineering Banjaluka, B&HFilipovi Ivan, Faculty of Mechanical Engineering Sarajevo, B&HGerasim uk G. Vasilj, “KPI”, UkrainiaGruden Dušan, TU Wien, AustriaIvkovi Branko, Faculty of Mechanical Engineering Kragujevac, SerbiaJokanovi Simo, Faculty of Mechanical Engineering Banjaluka, B&HJoviševi Vid, Faculty of Mechanical Engineering Banjaluka, B&HKoji Miloš, Harvard University, USAKostolansky Eduard, University of Cyril and Metodius Trnava, SlovakiaKozi or e, Faculty of Mechanical Engineering Beograd, SerbiaLuka Duško, University of Applied Science, GermanyMaksimovi Stevan, Aeronautical Institute, SerbiaMileti Ostoja, Faculty of Mechanical Engineering Banjaluka, B&HMili i Dragomir, Faculty of Mechanical Engineering Banjaluka, B&HMilutinovi Dragan, Faculty of Mechanical Engineering Beograd, SerbiaNedi Bogdan, Faculty of Mechanical Engineering Kragujevac, SerbiaNinkovi Dobrivoje, ABB Turbo-Systems AG, SwitzerlandOgnjanovi Milosav, Faculty of Mechanical Engineering Beograd, SerbiaPeši Radivoje, Faculty of Mechanical Engineering Kragujevac, SerbiaPlan ak Miroslav, FTN Novi Sad, SerbiaPop Nicolae, North University of Baia Mare, RomaniaRadovanovi Milan, Faculty of Mechanical Engineering Beograd, SerbiaRavano Giambattista, University SUPSI, SwitzerlandSavi Vladimir, FTN Novi Sad, SerbiaSchmied Joachim, Delta JS, SwitzerlandSeok Park Hong, University of Ulsan, KoreaŠljivi Milan, Faculty of Mechanical Engineering Banjaluka, B&HSokovi Mirko, Faculty of Mechanical Engineering Ljubljana, SloveniaStefanovi Milentije, Faculty of Mechanical Engineering Kragujevac, SerbiaStegi Milenko, FSB Zagreb, CroatiaThomeensen Trygve, Norwegian University of Science and Technology, NorwayTodi Velimir, FTN Novi Sad, SerbiaTufek i emo, Faculty of Mechanical Engineering Tuzla, B&HVeinovi Stevan, Faculty of Mechanical Engineering Kragujevac, SerbiaVereš Miroslav, Faculty of Mechanical Engineering, Bratislava, SlovakiaZeljkovi Milan, FTN Novi Sad, SerbiaZrili Ranko, Faculty of Mechanical Engineering Banjaluka, B&HZrni Nenad, Faculty of Mechanical Engineering Beograd, Serbia v
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  8. 8. CONTENTKEYNOTE LECTURES ................................................................................................... 11. Claudio R. Boër SUSTAINABLE INNOVATION AND INNOVATION FOR SUSTAINABILITY: THE EVOLUTION AND INVOLUTION OF PRODUCTION PARADIGMS ........... 32. Giambattista Ravano COOPERATION MODELS BETWEEN UNIVERSITIES AND INDUSTRY IN APPLIED RESEARCH, SWITZERLAND CASE STUDY AND SOME PRACTICAL EXAMPLES ...................................................................................... 53. Radivoje Peši , Stevan Veinovi TRANSPORT ECOLOGY AND GLOBAL CLIMATE CHANGE ............................ 74. Milosav Ognjanovi DESIGN CONSTRAINTS AND ROBUST DESIGN AS THE MODERN APPROACH TO MECHANICAL STRUCTURE DEVELOPMENT DESIGN CONSTRAINTS AND ROBUST DESIGN AS THE MODERN APPROACH TO MECHANICAL STRUCTURE DEVELOPMENT ........................................... 215. Neven Dui RENEWABLE ENERGY AS A DRIVER OF ECONOMIC GROWTH ................. 356. Stojan Petrovi , Božidar Nikoli , Emil Hnatko, Jovo Mr a, Stevan Veinovi MALICIOUS ECOLOGY ON VEHICLES AND TRAFFIC EXAMPLE ................. 55A. MECHANICS AND DESIGN ................................................................................... 577. Michail Leparov, Georgi Dinev, Marieta Jancheva ABOUT RECEIPTE OF VARIANTS OF TECHNICAL OBJECTS ....................... 598. Leparov M., Yancheva M. ABOUT THE INTEGRATION OF ASSEMBLY UNITS ........................................ 659. Darko Kneževi , Aleksandar Milašinovi , Zdravko Milovanovi ANALYSIS OF INFLUENCE OF LENGTH OF DEVELOPMENT OF BOUNDARY LAYER ON FLOW RATE THROUGH RADIAL CLEARANCE WITHIN HYDRAULIC CONTROL COMPONENTS ........................................... 7110. Nebojša Radi , Goran Sekuli , Dejan Jeremi ANALYTICAL-NUMERICAL STRESS ANALYSIS OF SPUR GEARS WITH STRAIGHT TEETH ............................................................................................. 7711. Georgy Dinev, Marieta Yancheva CAD DESIGN OF FLEXIBLE FRICTION COUPLING ....................................... 8312. Dragan Lišanin, Marinko Petrovi , Nenad Grujovi , Jelena Borota COMPARATIVE ANALYSIS OF THE FORMATION OF SMALL GRAIN GUIDANCE ......................................................................................................... 8713. Pavle Stepani , Željko urovi , Aleksa Krošnjar, Aleksandra Pavasovi COMPARISON OF TECHNIQUES FOR DETECTION OF FAILURE ROLLING ELEMENT BEARINGS ....................................................................... 9314. Strain Posavljak, Miodrag Jankovic, Katarina Maksimovic CRACK INITIATION LIFE OF NOTCHED METALLIC PARTS EXPOSED TO LOW CYCLE FATIGUE ....................................................................................... 99 vii
  9. 9. 15 Sr an Bošnjak, Zoran Petkovi , Miloš or evi , Nebojša Gnjatovi , Nenad Zrni DESIGN IMPROVEMENTS OF THE BUCKET WHEEL WITH DRIVE ............11116. Aleksandar Marinkovi , Aleksandar o i , Bratislav Stojiljkovi , Milan Vuli evi DESIGN OF TESLA-TIFFANY CASCADE FOUNTAIN AS A SAMPLE OF TESLA`S RESEARCH CREATIVITY IN FIELD OF MECHANICAL ENGINEERING .................................................................................................11717. Svetislav Lj. Markovi DESIGN SEALS FOR REAL CONNECTIONS .................................................12318. Valentina Golubovi -Bugarski, Drago Blagojevi , or e i a, Branislav Sredanovi DETECTION OF STRUCTURAL DAMAGE LOCATION USING FREQUENCY RESPONSE FUNCTION DATA .................................................12919. Dragi Stamenkovi , Mato Peri DETERMINATION OF RESIDUAL STRESSES IN TUBULAR WELDED STRUCTURAL COMPONENTS ........................................................................13520. Živko Pejašinovi , Zorana Tanasi , Goran Janji EFFECT OF MATERIAL PROPERTIES OF MEASURING FORCE TRANSDUCER ELASTIC ELEMENTS TO METROLOGIY CHARACTERISTICS .........................................................................................14521. Siniša Kuzmanovi , Milan Rackov EVALUATION OF CONCEPTUAL SOLUTIONS OF UNIVERSAL HELICAL TWO STAGE GEAR UNITS ..............................................................................15122. Ivica amagi , Nemanja Vasi , Zijah Burzi FATIGUE ANALYSIS FROM FRACTURE MECHANICS ANGLE ....................15923. Slobodanka Boljanovi , Stevan Maksimovi , Strain Posavljak FATIGUE LIFE ESTIMATION OF CRACKED STRUCTURAL COMPONENTS .................................................................................................16524. Ibrahim Badžak, Remzo Dedic, Mersida Manjgo HYDRAULIC INSTALLATION OF EKO CONTAINER ......................................17325. Vesna Rankovi , Nenad Grujovi , Goran Milovanovi , Dejan Divac, Nikola Milivojevi PREDICTION OF DAM BEHAVIOUR USING MULTIPLE LINEAR REGRESSION AND RADIAL BASIS FUNCTION NEURAL NETWORK .........17926. Nenad Zrni , Sr an Bošnjak, Vlada Gaši , Miodrag Arsi SOME ASPECTS IN FAILURE ANALYSIS OF CRANES ................................18527. Stevan Maksimovi , Ivana Vasovi , Mirko Maksimovi SOME ASPECTS TO DESIGN OF AIRCRAFT STRUCTURES WITH RESPECTS TO FATIGUE AND FRACTURE MECHANICS ............................19128. Andrija Vuji i , Nenad Zrni STATE-OF-THE-ART IN LIFE CYCLE ASSESSEMENT AS A CORE OF LIFE CYCLE DESIGN .......................................................................................20329. Mersida Manjgo, Ljubica Milovi , Zijah Burzi STRESS INTENSITY FACTOR AND ITS EFFECT OF STRUCTURAL INTEGRITY ........................................................................................................20930. Vukojevi Nedeljko, Hadžikaduni Fuad, Pavi Mate VIBRATORY STRESS RELIEVING OF TANK FLANGS ..................................215viii
  10. 10. 31. Ranko Antunovic VIBRODIAGNOSTICS OF ROTATION MACHINES ........................................ 221B. PRODUCTION TECHNOLOGIES AND ENGINEERING ...................................... 22932. Kramar D., Sokovi M., Kopa J. ADVANCED CUTTING TECHNOLOGY – HIGH-PRESSURE JET ASSISTED MACHINING ....................................................................................................... 23133. Milan Milovanovi , Milentije Stefanovi ANALYSIS OF THE EFFECTS OF APPLYING NEW MATERIALS .................. 24134. Tomasz Kudasik, Tadeusz Markowski, Olimpia Markowska, S awomir Miechowicz APPLICATION OF RAPID PROTOTYPING RESINS FOR PHOTOELASTIC TESTING ............................................................................................................ 24735. Slavica Cvetkovi AUDITING PROCESS DESIGN COMPANY LOGISTICS SYSTEM ................. 25336. Andonovic Vladan, Vrtanoski Gligorce CAD/CAM TECHNOLOGY IN DENTAL MEDICINE .......................................... 25937. Zoran Janjuš, Aleksandar Petrovi , Aleksandar Jovovi , Radica Proki -Cvetkovi , Predrag Ili CHANGES VOLTAGE COMPACTION POLYPROPYLENE FILLED WITH GLASS POWDER .............................................................................................. 26538. Miletic Ostoja, Todic Mladen CHANGING THE WALL THICKNESS PROFILE IN THE PROCESS OF PROFILING ........................................................................................................ 27139. Plavka Skakun, Miroslav Plan ak, Dragiša Viloti , Mladomir Milutinovi , Dejan Movrin, Ognjan Lužanin COMPARATIVE INVESTIGATION OF DIFFERENT LUBRICANTS FOR BULK METAL FORMING OPERATIONS ..................................................................... 27540. Borislav Kovljeni COMPLEXITY ANALYSIS OF CAD/CAM SYSTEMS INTEGRATION IN ERP BUSINESS ENVIRONMENT ............................................................................. 28141. S. Aleksandrovi , T. Vujinovi , M. Stefanovi , V. Lazi , D. Adamovi COMPUTER CONTROLLED EXPERIMENTAL DEVICE FOR INVESTIGATIONS OF TRIBOLOGICAL INFLUENCES IN SHEET METAL FORMING .......................................................................................................... 28542. Radu Alexandru Ro u, Viorel Aurel erban, Mihaela Popescu, U u Drago Cosmin Locovei DEPOSITION OF TITANIUM NITRIDE LAYERS BY REACTIVE PLASMA SPRAYING ......................................................................................................... 29143. S awomir Miechowicz, Tadeusz Markowski, Tomasz Kudasik, Olimpia Markowska DESIGN AND FABRICATION OF MEDICAL MODELS WITH RAPID PROTOTYPING TECHNIQUES AND VACUUM CASTING .............................. 29744. Djordje Vukelic, Branko Tadic, Janko Hodolic, Igor Budak, Milovan Lazarevic DEVELOPMENT AN EXPERT SYSTEM FOR MACHINING FIXTURE DESIGN .............................................................................................................. 30345. Bogdan Nedi , Gordana Globo ki-Laki DEVELOPMENT MODEL FOR CONTROL METAL CUTTING PROCESS .......... 309 ix
  11. 11. 46. Aurel Prsti , Zagorka Acimovi -Pavlovi , Zvonko Gulišija, Mirjana Stojanovi DEVELOPMENT OF EPC PROCESS FOR MANUFACTURING PARTS IN AUTOMOTIVE INDUSTRY ................................................................................31547. Obu ina Mur o, Škalji Nedim, Smaji Selver EFFECT OF SURFACE ROUGHNESS ON WOOD ADHESION ......................32148. M. Stefanovi , D. Viloti , M. Plan ak, S. Aleksandrovi , Z.Gulisija, D. Adamovi FORMING LIMIT INDICATORS IN METAL FORMING .....................................32749. Run ev Dobre, Gligor e Vrtanoski, Ljup o Trpkovski HEATED TOOL BUTT WELDING OF POLYETHYLEN PIPES .........................33750. Marija Mihailovi , Aleksandra Patari , Zvonko Gulišija, Miroslav Soki INCREASING PRODUCTION EFFICIENCY THROUGH CASTING QUALITY IMPROVING BY ELECTROMAGNETIC FIELD APPLYING ..............................34351. Zorana Tanasi , Goran Janji , Bobrek Miroslav, Živko Pejašinovi INFLUENCE OF ORGANIZATIONAL CULTURE ON BUSINESS PERFORMANCE ................................................................................................34952. Robert Molnar, Drago Soldat INNOVATION-THE KEY FACTOR IN ENTREPRENEURIAL CYCLES ............35553. Vid Joviševi , Stevo Borojevi , Gordana Globo ki-Laki , Branislav Sredanovi LABORATORIES UNDER REQUIREMENTS OF DIRECTIVES AND STANDARDS OF EUROPEAN UNION .............................................................36154. Sanja Petronic, Andjelka Milosavljevic, Biljana Grujic, Radovan Radovanovic Radmila Pljakic LASER SHOCK PEENING OF N-155 SUPERALLOY EXPOSED TO AGGRESSIVE MEDIUM ....................................................................................36755. Bogdan Mari , Ranko Boži kovi LEAN CONCEPT TOOLS IN PROCESS OF TECHNICAL SYSTEMS OVERHAUL ........................................................................................................37356. Ranko Radonji , Milan Šljivi , Živko Babi , Milentije Stefanovi NUMERICAL SIMULATION OF HOLE FLANGING OF CIRCULAR SHEETS ..37957. Dejan Luki , Velimir Todi , Mijodrag Miloševi , Goran Jovi i ONE APPROACH TO THE DEVELOPMENT AND IMPLEMENTATION OF FLEXIBLE MANUFACTURING SYSTEMS ........................................................38558. Milentije Stefanovi , Srbislav Aleksandrovi , Dragan Adamovi PAPER ABOUT PAPERS IN THE AREA OF METAL FORMING PRESENTED AT DEMI CONFERENCES HELD SO FAR ................................39159. Todic Mladen, Miletic Ostoja POSITION OF THE NEUTRAL SURFACE DEFORMATION AT BENDING TWO LAYER COMPOSITES .............................................................................39960. Milena Cosi , Zagorka Acimovi -Pavlovi , Zvonko Gulišija, Mirjana Stojanovi , Zoran Janjuševi POSSIBILITY TO USE RHEOCASTING PROCESS FOR MANUFACTURING PARTS IN AUTOMOTIVE INDUSTRY ...............................................................40561. Zvonko Gulišija, Marija Mihailovi , Aleksandra Patari , Zoran Janjuševi PROPERTIES OF THE WROUGHT Al ALLOY 7075 OBTAINED BY ELECTROMAGNETIC CASTING PROCESS ....................................................40962. Vrtanoski Gligorce, Andonovic Vladan RAPID TECHNOLOGY IN DENTAL BIOMECHANICS ......................................413x
  12. 12. 63. Stevo Borojevi , Vid Joviševi , Gordana Globo ki-Laki , or e i a, Branislav Sredanovi , Marko Radisavljevi SELECTION OF VARIANT FOR MATERIAL FLOW TYPE IN CONDITIONS OF GROUP APPROACH USING THE SOFTWARE SYSTEM TECNOMATIX PLANT SIMULATION ......................................................................................... 41964. Velimir Todi , Dejan Luki , Mijodrag Miloševi , Jovan Vukman TECHNOLOGICAL BASIS FOR THE DEVELOPMENT AND IMPLEMENTATION OF FLEXIBLE MANUFACTURING SYSTEMS ................ 42765. Goran Janji , Predrag Nagraisalovi , Zorana Tanasi , Miroslav Bobrek, Živko Pejašinovi THE PROCESS OF MEASURING EQUIPMENT MANAGEMENT AND ITS AUTOMATIZATION ............................................................................................ 43366. S. Mazzola, P. Pedrazzoli, G. Dal Maso, C. R. Boër VIRTUAL ENVIRONMENT PLATFORM FOR INDUSTRIAL OPERATION AND MAINTENANCE ......................................................................................... 441C. THERMOTECHNIQUE AND ENERGETICS ......................................................... 44767. Nataša Soldat, Mirjana Radiši BASIC ASPECTS OF DEFINING MECHANICAL-TECHNOLOGICAL SOLUTIONS FOR THE PRODUCTION OF BIOGAS FROM LIQUID MANURE 44968. Crnojevi C., Le i M. DETERMINATION OF PRESSURE DROP TWO-PHASE FLOW OIL AND GAS FOR ISOTHERMAL FLOW IN HORIZONTAL PIPELINE ......................... 45369. Igor Andreevski, Gligor Kanev e, Ljubica Kanev e, Aleksandar Markoski, Sevde Stavreva DEVELOPMENT AND APPLICATION OF REGULATORY DISPERSION MODEL FOR AIR POLLUTION ASSESSMENT ................................................ 45970. Gordana Tica, Veljko uri kovi , Petar Gvero DIMENSIONING OBJECTS COOLING SYSTEM FOR PREDETERMINED KNOWN RELIABILITY ....................................................................................... 46571. Mi a Vuki , Velimir Stefanovi , Predrag Živkovi , Mirko Dobrnjac EXPERIMENTAL INVESTIGATION OF THERMAL AND FLOW PROCESSES IN SHELL AND TUBE HEAT EHCHANGERS ........................... 47572. Popov G., Klimentov Kl., Kostov B. INVESTIGATION OF THE ENERGY CONSUMPTION IN REGULATING THE FLOW RATE OF PUMP SYSTEMS ................................................................... 48173. or e S. antrak, Slavica S. Risti , Novica Z. Jankovi LDA, CLASSICAL PROBES AND FLOW VISUALIZATION IN EXPERIMENTAL INVESTIGATION OF TURBULENT SWIRL FLOW ........................................... 48974. Popov G., Klimentov Kl., Kostov B. METHODS TO ESTIMATE THE ENERGY CONSUMPTION IN REGULATING THE FLOW RATE OF PUMP SYSTEMS .......................................................... 49575. Majid Soleimaninia NUMERICAL INVESTIGATION OF HEAT TRANSFER ENHANCEMENT IN NATURAL CONVECTION AND FORCE CONVECTION IN A FLUID SATURATED VARIABLE POROSITY MEDIUM ............................................ 501 xi
  13. 13. 76. Milica Grahovac OBJECTIVE FUNCTION DEFINITION FOR PRIMARY HVAC SYSTEM TOTAL COSTS MINIMIZATION .........................................................................51577. Diana Alina Bistrian, Manuela P noiu, Tihomir Latinovi , Marcel Topor PARALLEL SOLUTIONS TO ACCELERATE MATHEMATICAL ALGORITHMS IN HYDRODYNAMIC STABILITY PROBLEMS ........................52378. Sevde Stavreva, Marko Serafimov, Igor Andreevski REDUCING CONCUMPTION OF ENERGY OF DATA CENTERS ...................53379. N. Mani , V. Jovanovi , D. Stojiljkovi RESULTS OF EXPERIMENTAL INVESTIGATION OF PELLET STOVE ACCORDING TO EN 14875 ...............................................................................53980. Mirjana Radiši , Nataša Soldat SOME EXPERIENCES IN THE PRODUCTION OF BIOGAS FROM LIQUID MANURE ............................................................................................................54981. Aleksandar Stjepanovi , Sla ana Stjepanovi , Ferid Softi , Zlatko Bundalo TEMPERATURE CHARACTERISTICS OF PHOTOVOLTAIC MODULE .........55582. Predrag Živkovi , Gradimir Ili , Mirko Dobrnjac, Mladen Tomi , Žana Stevanovi , WIND POTENTIALS ASSESMENT IN COMPLEX TERRAIN ...........................56183. Ljubo Glamo i WIND POWER RESOURCES IN THE REPUBLIC OF SRPSKA ......................56784. Milovan Kotur, Gostimir Radi COVENANT OF MAYORS FORESEEN ACTIVITIES AT DISTRICT HEATING COMPANY – TOPLANA A.D. BANJA LUKA ....................................57585. Milovan Kotur, Branko Usorac, Petar Gvero, Gordana Tica PARTIAL REPLACING HEAVY FUEL OIL WITH BIOMASS IN THE DISTRICT HEATING COMPANY IN GRADIŠKA ..............................................58186. Milovan Kotur, Zoran Kneževi , Petar Gvero, Gordana Tica BIOMASS PROJECT IN DISTRICT HEATING COMPANY (DHC) IN PRIJEDOR, BIH ..................................................................................................587D. TRAFFIC MEANS ..................................................................................................59387. Stojan Petrovi , Božidar Nikoli , Emil Hnatko, Jovo Mr a, Stevan Veinovi MALICIOUS ECOLOGY ON VEHICLES AND TRAFFIC EXAMPLE ................59588. Zlatomir Živanovi , Zoran Jovanovi , Željko Šakota A COMPARATIVE ANALYSIS OF CNG AND HYBRID BUSES VS DIESEL BUSES ...............................................................................................................60789. Milan Milovanovi , Dragoljub Radonji , Saša Jovanovi ADJUSTMENTS OF VEHICLES WITH GAS DRIVE ........................................61390. Dalibor Jajcevic, Raimund Almbauer APPLICATION OF A CYCLIC BOUNDARY CONDITION FOR CFD SIMULATIONS OF A 2-CYLINDER IC-ENGINE ...............................................61991. Melisa Velic, Semir Mulalic, Adnan Pecar CALCULATING THERMODYNAMIC PROPERTIES BY CREATING AND USING MODEL OF A DIESEL ENGINE WITH SIX CYLINDERS ....................627xii
  14. 14. 92. Mile Rai evi , Miroslav Demi , Nebojša Rako, Predrag Milenkovi DETERMINING THE DURATION OF VIBRATION MEASUREMENTS OF HUMAN BODY IN LABORATORY CONDITIONS BY SUBJECTIVE METHODS ........................................................................................................ 63393. Miroljub Tomi , Stojan Petrovi , Slobodan Popovi , Nenad Milji DUAL PORT INDUCTION SYSTEM FOR DMB 1.4 MPI ENGINE ................... 65194. Blaževi A., Bibi Dž., Filipovi I. FUNCTION AND ADOPTION OF IC ENGINES DUAL MASS FLYWHEEL ..... 66195. Jelena Eric Obucina, Jovanka Lukic HYDRAULIC PUMP IN THE OF VEHICLE STEERING SYSTEM ................... 66796. Aleksandar Davini , Radivoje Peši , Dragan Taranovi , Miroslav Ravli IGNITION SYSTEM OF MULTIPROCESSING OTTO/DIESEL ENGINE ......... 67397. Filipovi I., Milašinovi A., Blaževi A., Pecar A. IMPACT OF THE SPECIFIC ABSORBERS ON THE DYNAMIC LOAD OF THE IC ENGINE’S CRANKSHAFT ................................................................... 68198. Jasna Glišovi , Jovanka Luki , Danijela Miloradovi IMPROVEMENTS OF GROUND VEHICLES FUEL ECONOMY USING REGENERATIVE BRAKING ............................................................................. 68799. Predrag Živkovi , Mladen Tomi , Gradimir Ili , Mirko Dobrnjac, Vladimir Lazovi , INFLUENCE OF TRAFFIC ON AIR QUALITY IN NIŠ ...................................... 693100. Boran Pikula, Ivan Filipovi , Mirsad Trobradovi INVESTIGATION OF DYNAMICS CHARACTERISTICS OF HYBRID VEHICLES ......................................................................................................... 699101. Vladan Ivanovic, Decan Ivanovic, Vladimir Pajkovic LANDFILL GAS AS A FUEL FOR A VEHICLE FLEET FOR THE CITY LANDFILL .......................................................................................................... 705102. Jovanka Luki , Radivoje Peši , Dragan Taranovi NVH INVESTIGATION OF POWER STEERING SYSTEM HYDRAULIC PUMP ................................................................................................................ 711103. Vojislav B. Krsti , Božidar V. Krsti , Vuki N. Lazi POSIBILITY OF DETERMINATION THE ROUTES FOR TRANSPORTATION OF HAZARDOUS GOODS ON THE BASIS OF THE RISK LEVEL ................. 717104. Božidar V. Krsti , Vojislav B. Krsti , Ivan B. Krsti POSSIBILITIES DETERMINATION OF THE OPTIMAL STRATEGY FOR PREVENTIVE MAINTENANCE OF THE CARDAN SHIFT VEHICLE USING POLYCRITERION OPTIMIZATION .................................................................. 723105. Pikula Boran, Filipovic Ivan, Kepnik Goran RESEARCH OF THE EXTERNAL AERODYNAMICS OF THE VEHICLE MODEL .............................................................................................................. 731106. Vladimir R. Pajkovi ROAD TRAFFIC SAFETY PERFORMANCE IN MONTENEGRO .................... 739107. Dobrivoje Ninkovic SURVEY OF METHODS FOR CALCULATING THE WAVE ACTION IN THE MANIFOLDS OF INTERNAL COMBUSTION ENGINES .................................. 745108. Dragan Taranovic, Radivoje Pesic, Jovanka Lukic, Aleksandar Davinic TEST BENCH FOR NON-STANDARD MEASUREMENT CHARACTERISTICS OF RECIPROCATING COMPRESSOR ........................................................... 759 xiii
  15. 15. 109. Branislav Aleksandrovi , Rajko Radonji , Marko apan, Aleksandra Jankovi THE RESEARCH OF CORRELATIONS BETWEEN MOTORCYCLE OSCILLATORY PROCESSES DURING THE NONSTEADY MODES OF MOTION ............................................................................................................765110. Izudin Deli , Izet Ali TRENDS IN DEVELOPMENT OF CATALYTIC CONVERTER OF INTERNAL COMBUSTION ENGINES (ICE) .....................................................771111. Pantelija Daki , Sreten Peri MONITORING OIL FOR LUBRICATION OF TRIBOMECHANICAL ENGINE ASSEMBLIES ....................................................................................................777E. MECHATRONICS ..................................................................................................793112. Milan Paripovi ANALYSES THE DAMAGE CAUSED BY ATMOSPERIC DISCHARGE AND OVERVOLTAGE PROTECTION ........................................................................795113. Slaviša Todorovi , Miroslav Rogi AUTOMATION AND OPTIMIZATION OF PROJECT OPERATIONS IN THE BRIDGE CRANE DESIGN PROCESS ...............................................................801114. Corina Daniela Cun an, Ioan Baciu, Loredana Ghiorghioni DC STABILIZER WITH DIGITAL CONTROL .....................................................807115. Marija Mili evi , Vladimir Kaplarevic, Zoran Dimi , Vojkan Cvijanovi , Mirko Bu an DEVELOPMENT OF DISTRIBUTED CONTROL SYSTEM FOR ROBOTS CONTROL BASED ON REAL-TIME LINUX PLATFORM ..................................813116. Miroslav Rogi , Bojan Kneževi , Branislav Risti DEVELOPMENT OF THE CONCEPT OF INTERACTIVE EDUCATION IN MECHATRONICS ..............................................................................................819117. Ivan B. Krsti , Božidar V. Krsti , Dragan I. Milosavljevi EFFECTIVENESS DETERMINATION OF ELECTRONIC DEVICES PREVENTIVE MAINTENANCE ..........................................................................825118. Mihailo P. Lazarevi , Vasilije Vasi , Aleš Hace, Karel Jezernik FURTHER RESULTS ON MODELING, INTEGRATED DESIGN AND SIMULATION OF A MECHATRONIC SYSTEM WITH FPGA ...........................831119. Miroslav Grubiši , Snježana Rezi IMPACT OF SENSOR FAILURE ON WORK OF ELECTRONICALLY CONTROLLED DIESEL ENGINES ....................................................................837120. Miroslav Kostadinovi , Zlatko Bundalo, Dušanka Bundalo IMPLEMENTATION OF PLANTWEB ALERTS IN A DELTAV SYSTEM ...........843121. Vahid Bagher Poor, Majid Hashemipour IMPLEMENTATION OF RFID TECHNOLOGY AND SMART PARTS IN WIRELESS MANUFACTURING SYSTEMS ......................................................849122. Tihomir Latinovic, Sorin I Deaconu, Remiquez Labudski, Marcel Topor INTELLIGENT APPROACH FOR MOBILE ROBOT SIMULATOR WITH ROBOSIM SOFTWARE .....................................................................................857xiv
  16. 16. 123. Milutinovic D., Glavonjic M., Slavkovic N., Kokotovic B., Milutinovic M., Zivanovic S., Dimic Z. MACHINING ROBOT CONTROLED AND PROGRAMMED AS A MACHINE TOOL .................................................................................................................. 863124. Vladimir Kaplarevi , Marija Mili evi , Jelena Vidakovi , Vladimir Kvrgi NEW APPROACH FOR DESSIGNING ROBOT PROGRAMING SYSTEM BASED ON L-IRL PROGRAMING LANGUAGE ................................................ 873125. Kostic Aleksandra, Velic Melisa, Bektesevic Jasmin PRACTICAL STRATEGIES FOR STABILISATION OF ALGORITHMS BASED ON SECULAR EQUATIONS OF RSPDTM .......................................... 877126. Platon Sovilj, Nenad abrilo, Vladimir Vuji i , Ivan Župunski REMOTE MEASUREMENTS BY ZIGBIT WIRELESS MODULE ...................... 885127. K. Abhary, D. Djukic, H-Y. Hsu, Z. Kovacic, D. Mulcahy, S. Spuzic, F. Uzunovic SOME ASPECTS OF KNOWLEDGE ENGINEERING ...................................... 893128. Nenad Miloradovi , Rodoljub Vujanac, Blaža Stojanovi STACKING AISLE WIDTH FOR FORKLIFT TRUCKS IN PALLETIZED STORAGE AND HANDLING SYSTEMS ........................................................... 899129. Mihajlo J. Stoj i , Bojan Kneževi THE CONTROLLER DESIGN FOR TRACKING TRAJECTORY WITH CONTROLLED JERK ......................................................................................... 905130. Deaconu, S. I., Opri a N, Popa, G. N., Latinovic T. ULTRASONIC WELDING SYSTEM FOR AUTOMOTIVE WIRINGS INDUSTRY ......................................................................................................... 911131. Dražen Pašali , Zlatko Bundalo, Dušanka Bundalo, Miroslav Kostadinovi WIRELESS SENSOR NETWORKS IN HOME AUTOMATION ......................... 917132. Mihailo Lazarevi , Petar Mandi , Vasilije Vasi SOME APPLICATIONS OF NEUROARM INTERACTIVE ROBOT AND WEBOTS ROBOT SIMULATION TOOL ............................................................ 923F. MAINTENANCE OF TECHNICAL SYSTEMS ....................................................... 929133. Rusmir Bajri , Enver Omazi , Fehmo Mrkaljevi AVAILABILITY ANALYSIS OF IRREDUNDANT TECHNICAL SYSTEMS ........ 931134. Aleksandar Živkovi , Milan Zeljkovi , Milorad Rodi , Milivoje Mijuškovi COMPUTER AND EXPERIMENTAL DETERMINATION OF THE HUB UNIT LIFE .................................................................................................................... 937135. Danijela Nikolic, Vanja Sustersic, Jasmina Skerlic DECENTRALIZED WASTEWATER TREATMENT SYSTEMS IN LARGE SETTLEMENTS ................................................................................................. 943136. Ivan B. Krsti , Dragan I. Milosavljevi , Božidar V. Krsti DETERMINATION THE PERIODICITY OF MANAGING OF PREVENTIVE MAINTENANCE OF TECHNICAL SYSTEMS ................................................... 949137. Mihaela Popescu, Radu Alexandru Ro u, Carmen Opri , Ibolyka Bran ENVIRONMENT PROTECTION FOR WELDING AND ALLIED TECHNIQUES . 955138. Milomir upovi , Desimir Jovanovi , Bogdan Nedi FTA AND FMEA IN PREDICTING INCIDENTAL CONDITIONS IN CABLE CARS AND SKI LIFTS ....................................................................................... 961 xv
  17. 17. 139. Milorad Panteli , Sr an Bošnjak MAINTENANCE AND LIFECYCLE OF THE EXCAVATION UNITS ..................967140. Dusan Jovanic, Drago Soldat MODELING MAINTENANCE ACTIVITIES ON A WELDED CONSTRUCTION USING IDEF0 METHODOLOGY ........................................................................973141. Jasmina Skerlic, Vanja Sustersic, Danijela Nikolic NATURAL SYSTEMS OF WASTEWATER TREATMENT IN SMALL SETTLEMENTS ................................................................................................. 979142. Miodrag Milutinovi , Vladimir Popovi PROCEDURES FOR RISK BASED MANAGEMENT AND MAINTENANCE RIMAP PRINCIPLE ............................................................................................985143. Dragoslav Dobraš, Sead Avdi PURPOSE AND METHOD EDUCATION OF INTERNATIONAL RECOGNIZED PERSONNEL FOR WELDING ..................................................997144. Aleksandar Majstorovi SAFETY PARTS OF BODY TO RESPIRATION WITH BREATHING APPARATUS IN DANGEROUS ZONE ............................................................1003145. Stojan Simi STATUS OF MAINTENANCE SERVICE IN COMPANIES IN REGION IN TIMES OF RECESSION ..................................................................................1009146. Remigiusz LABUDZKI IDENTIFY CHARACTERISTICS OF OBJECTS IN MACHINE VISION ............1015xvi
  18. 18. PREFACEThis year, the 10th Anniversary International Conference on Accomplishments inElectrical, Mechanical Engineering and Information Technology DEMI is going to beheld. The number of countries taking part in DEMI is increasing so this year scientistsand researchers from 17 countries are going to take part. This modest jubilee, but witha considerable number of participants, points to the fact that that DEMI Conference isbecoming an internationally recognized conference with respectable participants fromtechnologically developed countries.The first DEMI Conference was held in 1998 and was organized by the Faculty ofMechanical Engineering in Banja Luka having aimed to draw together university andinstitute scientists and professionals as well as experts from a very weakened, post-war economy. Such mission and role of the DEMI Conference has remained one of itspriorities to this day. From 1998-2003, the DEMI Conference was being held everyyear, and after that time, it started to be held every two years. The DEMI became atraditional conference and it took over a significant but demanding role of gatheringresearchers and scientists as well as economy experts with the aim to foster fasterimplementation of contemporary research and new technologies in productionprocesses in order to ensure better competitiveness of our industry. Definitely, this taskhas not been an easy one to achieve. thThis 10 anniversary DEMI Conference has seen a significant progress. For the firsttime, the official language of the Conference is English. The number of papers to bepresented at the Conference is 145 from 17 countries (former Yugoslav countries,Austria, Germany, Switzerland, Italy, Norway, Poland, Romania, Bulgaria, Turkey,Australia, New Zealand). The previous DEMI 2009 Conference brought togetherresearchers and scientists from 11 countries which indicates a greater interest in thisconference. The Conference activities will be realized in six sections which encompassthe following thematic fields: Production Technologies and Engineering, Mechanicsand Design, Traffic Means, Thermotechnique and Energetics, Maintenance ofTechnical Systems and Mechatronics. Key note lectures will be delivered by scientistsfrom universities from Switzerland, Norway, Serbia and Croatia who are involved inresearches of the highest scientific level in the fields of: mechatronics, energetics,modern approaches to machine structure and product design, the ecology oftransportation and global warming, paradigms of contemporary production and acompany’s adjustment to the current market requirements, etc.Therefore, we hope that the papers to be presented will contribute in considering andreflection on the present situation of research in mechanical and electrical engineeringas well as information and communications technologies in the regional conditions,enable comparison with developed European countries and offer new models for fasterimplementation of contemporary research as to encourage production in the country.As it is the most important scientific and professional conference in the fields ofmechanical engineering, information and communications technologies in our country,this is expected from the DEMI Conference with good reason. xvii
  19. 19. On behalf of the Organizational Committee of the DEMI 2011Conference, I would liketo thank all authors, members of the review team as well as institutions, companiesand individuals who contributed to the realization of the Conference program.The International Conference on Accomplishments in Electrical and MechanicalEngineering and Information Technology DEMI 2011 will be held at the Faculty ofMechanical Engineering, University of Banja Luka. We are looking forward towelcoming you as our dear guests. Welcome to the 10th anniversary DEMI 2011Conference.Banja Luka, 12 May 2011 President of the Organizational Committee of the 10th International DEMI 2011 Conference Gordana Globo ki-Laki , PhD. Associate Professorxviii
  20. 20. KEYNOTE LECTURES
  21. 21. SUSTAINABLE INNOVATION AND INNOVATION FOR SUSTAINABILITY:THE EVOLUTION AND INVOLUTION OF PRODUCTION PARADIGMS Claudio R. Boër1Summary: The consumer market is continuosly evolving requiring new products withmore functions, better design, more personalized, and lately, more sustainable. Theevolution of products has been followed closely by the evolution of the means tomanufacturing them, to assemble them and to delivering them to the market. Studyingthe evolution of production, it is possible to see that different paradigms have appearedfrom pre-industrialization, to industrialization, to mass production and then masscustomization. Innovation has always been the driver of the evolution of products andrelated process and the present keynote will present an overview of the past evolutionand the future trends. In particular it will be shown how important is that innovation issustainable in time for a company to be successfull and how innovation is a key for thefuture sustainable production paradigm.Key words: Production paradigm, sustainble production, mass customization,innovation.1 Prof. Dr. Ing.Claudio R. Boër, Director ICIMSI-SUPSI, Manno-Lugano, Switzerland 3
  22. 22. COOPERATION MODELS BETWEEN UNIVERSITIES AND INDUSTRY IN APPLIED RESEARCH, SWITZERLAND CASE STUDY AND SOME PRACTICAL EXAMPLES Giambattista Ravano1Summary: Switzerland has a very well established economic environment of smalland medium size industries (SMI). Thanks to a positive financial situation and a long-term policy of development an interesting system of cooperation between Universities(particularly Universities of Applied Sciences) and SMI could be established.Some key successful factors are described: Direct financing of industrial projects with proved business plan Participation of main key player in strategic decision (industrial organizations, research partners, Federal and Cantonal government) Balanced mix of cooperation and concurrence between research partners.Thanks to this approach a positive trend to innovation could be reached.Three examples of applied research projects in the fields of “materials for precisionmechanics, traffic systems, biotech precision systems” which turned into innovationand new business are presented.1 Prof. Giambattista Ravano, Director Department of Innovative Technology, University of Applied Sciencesand Arts of Southern Switzerland (SUPSI), CH -- 6928 Manno 5
  23. 23. TRANSPORT ECOLOGY AND GLOBAL CLIMATE CHANGE Radivoje Peši 1, Stevan Veinovi 2Summary: Heavy critics claim that a group of Western scientists has put together theprepositions for Kyoto protocol. The Kyoto protocol limits the production of thefollowing six components with anthropogenic activities: carbon dioxide, methane,nitrous oxide, per fluorocarbons, sulphur hexafluoride and hydro fluorocarbons. Themost dangerous role is assigned to carbon dioxide, so, on that basis, the elimination ofcarbon dioxide production is proclaimed as ecological success. The escalation iscontinued in such a pace, that clean technologies (?), clean fuels (?) and cleanvehicles (?) and similar are defined. The controversy over global warming gets evenmore complicated when you include politics, economics, greed, and the self interestsof the various governments, NGOs and companies. Astronomer Milutin Milankovicstudied changes in the orbital eccentricity, obliquity, and precession of Earthsmovements. Such changes in movement and orientation change the amount andlocation of solar radiation reaching the Earth. He hypothesized that when some parts ofthe cyclic variations are combined and occur at the same time, they are responsible formajor changes to the earths climate (even ice ages). The next stage of power trainand fuel strategy involves using new high economy combustion engines that can berun with partially renewable fuels and used worldwide. Researchers are hard at workexploring new fuels, engines and vehicle technologies- but there are not clean cars,clean energy or full renewable fuels. Contrary to popular belief electric vehicles don’thold all the emission answers, until the electric power comes from coal-fired powerstations or part renewable sources (hydro, wind and sun).Key words: global warming, IC engine, renewable fuels, transport ecology1. INTRODUCTION Rational and controlled vehicle use in transport and traffic is an obligation forthe future. Any activation of energy bears a burden to the environment in full amount. Awarm-up lifts light gases like oxygen and nitrogen, while steam and carbon-dioxidechoke the environment. Such are the signs of nature: there are no pure energy forms,no clean fuels, and no clean engine, neither clean vehicle. Actual reserves and natural1 PhD Radivoje Peši , professor, Kragujevac, Faculty of Mechanical Engineering in Kragujevac, Serbia, E-mail: pesicr@kg.ac.rs2 PhD Stevan Veinovi , retired professor, Kragujevac, Faculty of Mechanical Engineering in Kragujevac,Serbia, E-mail: vpst@kg.ac.rs 7
  24. 24. Peši R., Veinovi S.gifts – coal, petroleum and gas – should be used less as power sources and more asraw materials. The greatest contribution to ecological prolongation of life on our planetis given by rational, economical technologies and products that carefully engage thegifts of nature. Political leaders gathered in Kyoto, Japan, in December 1997 to consider aworld treaty restricting anthropogenic production of greenhouse gases, chiefly carbondioxide (CO2). They feared that CO2 would result in anthropogenic - caused globalwarming – hypothetical severe increases in Earth’s temperatures, with disastrousenvironmental consequences. During the past 10 years, many political efforts havebeen made to force worldwide agreement to the Kyoto treaty [1]. There is no convincing scientific evidence that anthropogenic release of carbondioxide, methane, or other greenhouse gasses is causing or will, in the foreseeablefuture, cause catastrophic heating of the Earths atmosphere and disruption of theEarths climate. Moreover, there is substantial scientific evidence that increases inatmospheric carbon dioxide produce many beneficial effects upon the natural plant andanimal environments of the Earth. Oregon Petition, from the Oregon Institute ofScience and Medicine, signed by over 17,000 international scientists including morethan 2000 of the worlds leading climatologists, meteorologists and planetary/atmospheric scientists [2]. Carbon Dioxide currently at 370 ppm, for it to be dangerous it would have to beat 15,000 ppm. This could not be reached even if every fossil fuel was burned.Thousands and thousands of studies show that higher levels of CO2 are good forplants. Many scientists believe plants still are not getting enough CO2. Tomato farmersusing exhaust from electricity to grow their tomatoes. Vegetation looses less waterunder higher CO2 levels, meaning vegetation in drought prone areas will live longerand produce more. Rice (the most eaten food in the world) was shown to increasemass and use less water with higher CO2 levels. Meaning the most important food inthe world highly benefits from CO2 increase. Fig. 1 Global temperatures8
  25. 25. Ecology of transport and global change earth’s climate The eruption of volcano Tambora in Indonesia in 1815 caused the Year withoutsummer because of global cooling. Due to the destruction of crops, disease,contamination of water, etc., tens of thousands more died in the next few followingyears. In 1991 Volcano Pinatubo (Philippines) caused the entire earth to cool by 0.5 °Ffor over one year, fig. 1. The misjudgment of Intergovernmental Panel on Climate Change (IPCC) andPotsdam Institute for Climate Impact Research (PIK) are not overlooked. The 50,000-member American Physical Society criticized the CO2 hypothesis as well as manyGerman scientists, physicists and meteorologists. Even former herald of climatedisasters are now well established that the climate is strongly influenced by nature (sun+ ocean current) than the CO2 in the atmosphere. But it is also annoying: For about tenyears, directed the global temperature is not more to the global warming prophets, ithas ceased to rise, although more and more diligently CO2 leaves the smokestacksand exhaust pipes of the people. Figure 2 shows the petition of 18,000 American geologists against climatepolicy USA Government. Fig. 2 Climate disaster: Cause is the sun! Fig. 3 Annual mean surface 3 December 1973 9 April 2001 temperatures in the contiguous The slope decreasing The slope increasing United States between 1880 and Intermediate Trends 2006. The slope of the least-squares Fig. 4 Is it Global Cooling or Global trend line for this 127-year re cord is Warming? 0.5ºC per century [1]. 9
  26. 26. Peši R., Veinovi S. Surface temperatures