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SMAT2008R13THE TIRES' PRINTS ON THE ROAD THAT MAY BE PROOFS DURINGTHE INVESTIGATION AND RECONSTRUCTION OF CAR ACCIDENTSAlexandru PETRESCU, Marius TOMA, Stefan VOLOACAAbstract: The physical proofs that are the most used and analyzed in the case of car accidents are the prints left bythe tires on the traffic lane or in its neighborhood. Considering the way they are obtained there are two trace groups:friction traces; traces made by printing. The tires must be examined to look for producing causes. This article showsevery tire’s feature (glide friction traces, slid friction traces, rolling trace) and if they were produced after or before theimpact.Keywords: tire, printing, slid, glide, rolling.Alexandru PETRESCU, Conf. Dr. Ing., Conf., 0729976872Marius TOMA, Asist. Univ. Drd. Ing., Asist. Univ., Universitatea Politehnica din Bucuresti,Facultatea de Transporturi, Catedra Autovehicule Rutiere, tarasmarius@yahoo.com,0214029548Stefan VOLOACA, Asist. Univ. Drd. Ing., Asist. Univ., Universitatea Politehnica din Bucuresti,Facultatea de Transporturi, Catedra Autovehicule Rutiere, voloacastefan@yahoo.com,0214029548SMAT2008R14THE EXAMINATION OF VEHICLE INVOLVED IN TRAFFIC ACCIDENTSTHE EFFECT OF THE ACCIDENT ON THE VEHICLE INTERIORAlexandru PETRESCU, Marius TOMA, Stefan VOLOACAAbstract: In the majority of traffic accidents, the vehicles suffers damages of their components, results of violentaction of factors who has their contribution to the foresee movement.This paper underlines the importance of correct stipulation of all accident’s aspects. Must be observed all thelateral ceiling and under the car body deformations, the state of lightning lamps, wheels, interior of the vehicle (theseatbelts, airbags, the command elements on the control panel, biological prints, alcohol containers) and the state ofbig detach components. While the vehicle is under examination we must imagine how the accident and the damages didhappen.Keywords: accident, motor vehicle, deformation, seatbelts.Alexandru PETRESCU, Conf. Dr. Ing., Conf., 0729976872Marius TOMA, Asist. Univ. Drd. Ing., Asist. Univ., Universitatea Politehnica din Bucuresti,Facultatea de Transporturi, Catedra Autovehicule Rutiere, tarasmarius@yahoo.com,0214029548Stefan VOLOACA, Asist. Univ. Drd. Ing., Asist. Univ., Universitatea Politehnica din Bucuresti,Facultatea de Transporturi, Catedra Autovehicule Rutiere, voloacastefan@yahoo.com,021402954882
SMAT2008R15VEHICLE DYNAMIC BEHAVIOUR ANALISYS BASED ON GPS DATAIon PREDA, Dinu COVACIU, Gheorghe CIOLAN, Dragoş-Sorin DIMAAbstract: GPS technology has a wide spreading for the large public. Now, it has enough advantages to beconsidered as a useful tool in the research activity. The price and the easiness of use make that type of devices veryinteresting for the experimental study of terrestrial vehicle dynamics. The paper presents some GPS data processingpossibilities figured out by the authors. Valuable information regarding the vehicle kinematic and dynamic behaviourcan be obtained. The authors realised a computer program that run over the AutoCAD platform, valorising itsgeometrical and list processing capabilities. The data can be imported from different GPS devices using standardisedor proprietary data formats. The information can be split, trimmed or merged for adjusting the track records to theresearcher specific needs. Also, the results can be exported in some large accepted formats, to be used in spreadsheetapplications as Excel or in mapping software as standard GPX file format. Starting from time and three-dimensionalposition data, the vehicle velocity, acceleration, road slope, movement resistance force or powers and engine load canbe derived. These kind of results can be plotted in diagrams for easier interpretation in domains as traffic flowstatistics, fuel consumption, energy recuperation and vehicle load estimation.Keywords: vehicle dynamics, GPS, data acquisition, software tool, CAD programming.Ion Preda, professor, eng., Ph.D., Transilvania University of Braşov, Automotive Department;email: pion@unitbv.roDinu Covaciu, eng., Ph.D. student, system engineer at Transilvania University of Braşov,Automotive Department; email: dinu.covaciu@unitbv.roDaniela Florea, professor, eng., Ph.D., Transilvania University of Braşov, AutomotiveDepartment; email: d.florea@unitbv.roJanos Timar, eng., Ph.D. student, Transilvania University of Braşov, Automotive Department;email: jancsika@unitbv.roSMAT2008R16THE INFLUENCE OF THE PUBLIC ILLUMINATION ONTHE ROAD EVENTSDiana C. THIERHEIMER, Tiberiu NAGY, Nicolae TANE, Walter W. THIERHEIMERAbstract: The natural and artificial lighting is the essential element of the road traffic in whose absence theparticipants’ motion could not be possible. When natural lighting lacks, both the vehicle’s artificial illumination andthe external urban illumination facilitate, the maintenance of (the road traffic) the functioning of the system vehicle– road – pedestrian. This paper offers basic information on the visual guidance, which is a quality criterion with anessential role in ensuring a fluent and safe traffic. The manifestations of disability glare are given as examples,particularly in traffic. The paper also reveals a series of data that allow the establishment of the luminance level inthe road-conflict area. Keywords: drivers’ vision, natural and artificial lighting, disability glare, urban illumination,safe trafficTiberiu NAGY, prof.dr.ing., Transilvania University of Brasov, Faculty of MechanicalEngineering, E-mail: nagy@unitbv.ro, 0268-413000Nicolae TANE, prof.dr.ing., Transilvania University of Brasov, Faculty of Agriculture andTourism E-mail: nictan54@unitbv.ro , 0268-413000Diana C. THIERHEIMER, prof.dr.ing., Transilvania University of Brasov, Faculty ofElectrical Engineering and the Science of Computers, E-mail: boldor@vega.unitbv.ro , 0268-478705Walter W. THIERHEIMER, assoc.prof.dr.ing., Transilvania University of Brasov, Faculty ofAgriculture and Tourism, E-mail: thierheimer@unitbv.ro , 0268-41300083
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SMAT2008V14AUTOMOTIVE DEPORTANTE WI
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SMAT2008V18ROAD DYNAMIC EXPERIMENTA
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SMAT2008V22STUDY CONCERNING FRACTIO
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Consideration on the distribution o
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SMAT2008V30THE MODAL POWER ASPECTS
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SMAT2008V33THE OPTIMIZATION OF THE
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SMAT2008V37COUPLED MULTIBODY - FINI
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SMAT2008V41THE VALIDATION BY EXPERI
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SMAT2008V45GENERAL ALGORITHM FOR DE
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29SMAT2008V48DEVELOPMENT OF INFORMA
Page 27 and 28: SMAT2008 V52THE ACTUAL STATE OF DEV
Page 29 and 30: SMAT2008V57COMPARATIVE PRACTICAL ST
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Page 33 and 34: SMAT2008T05NO-TILL RESEARCH RESULTS
Page 35 and 36: SMAT2008T10THE FINIT ELEMENT METHOD
Page 37 and 38: SMAT2008E03THE INFLUENCE OF BIODIES
Page 39 and 40: SMAT2008E06FUNCTIONING CONDITIONS O
Page 41 and 42: SMAT2008E09EXPERIMENTAL RESULTS CON
Page 43 and 44: SMAT2008E11THE MATHEMATICAL SIMULAT
Page 45 and 46: SMAT2008E15THE LPG USE IN DIESEL EN
Page 47 and 48: SMAT2008E20EXAUST EMISSIONS OF DIFF
Page 49 and 50: SMAT2008E24VVA FOR A SPARK IGNITION
Page 51 and 52: SMAT2008E27ESTIMATION BY CALCULATIO
Page 53 and 54: SMAT2008M04INFLUENCE OF THE PARTICL
Page 55 and 56: STUDY ON VEGETAL OILS CHARACTERISTI
Page 57 and 58: SMAT2008M13NITINOL: PROPERTIES AND
Page 59 and 60: SMAT2008M17EFFECTS OF QUENCING AND
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Page 63 and 64: SMAT2008M25ABOUT OF THE INFLUENCE O
Page 65 and 66: SMAT2008M29ERROR ON THE GEOMETRICAL
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Page 69 and 70: SMAT2008M37EFFECT OF STIFFNESS UNCE
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Page 73 and 74: SMAT2008R03URBAN AREAS CHEMICAL POL
Page 75 and 76: SMAT2008R07RESEARCH REGARDING THE V
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Page 81 and 82: SMAT2008R18STUDY REGARDING THE ROAD
Page 83 and 84: SMAT2008R20INFLUENCE OF THE HUMAN E
Page 85 and 86: SMAT2008R24RESEARCH CONCERNING DETE
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