不同質(zhì)心位置皮卡車正面碰撞事故分析

1、大連理工大學碩士學位論文不同質(zhì)心位置皮卡車正面碰撞事故分析姓名：徐平平申請學位級別：碩士專業(yè)：車輛工程指導教師：王健20081201不同質(zhì)心位置皮卡車正面碰撞事故分析TheAccidentAnalysisonthePick—upDifferentLocationoftheAbstractTrucks’FrontalCrashUnderCenterofMassWiththedevelopmentofautomobileindustryan

2、droadtransportation，trafficaccidenthasbecomeaseriousproblemintheworld，SOtheresearchonroadtrafficaccidentreconstructionisurgentandnecessaryInaccidents也ecartoCarcollisionaccidentisthemostseriousoneItendsinstantlyCannotbekn

3、ownindetailbyintuitionTherefore。itisurgenttostudycarto—Carcollisionaccidentcomprehensivelyandsystematically，andtheresearchalSOistheacademicfoundationtoanalyzeanddealwithtrafficaccidentInatra】f!ficaccidentidentificationth

4、emostdif!ficultthingistodetermine廿lecarspeedTheonlyreliablewaytosolvetheproblemistocollectsufficientevidenceintime，andthencarefullyanalyzetheevidencestomakescientificconclusionsHowever，accordingtheCardeformationtoealcula

5、tethecollisionvelocityisoneofthemostconMllonmethodInthispaper，firstlymakingabriefintroductionofthreeCarcollisionaccidentreproductionmethodsThenOVerviewingthecurrentmethodsofhowtousethecardeformationtocalculatethecollisio

6、nvelocityandanalyzingtheshortcomingsinthesemethodsByanalyzingandcomparing，thenmakeadecisiontousetheballisticequationinthisarticle鷦abasisOnthebaseofsimulatinganalysisoffrontalcollisionbetweenapick—uptruckandrigidwall，wema

7、keareasonablemodelsimplificationandfiniteelementmeshdivision，andchooserightcelltypesofeverypart、thecontactingtypesandweldingtypesforthetruck。Thensimulatingthetrucksunderthe10differentlocationsofthecenterofmassatthespeedo

8、f50Kin／hand72Km／htocrashtherigidwallAndhavinganalyzedthelawsofthetrucks’deformation，theenergyabsorptionoftheimportantpartsandcrashspeedwiththecenterofmasschangingThesimulationanalysisshowsthatthe10cationofthecenterofmaSs

9、hasalleffectontheballisticequafionandcrashspeedealculation，whichisnotconsideredwillgreatlyreducetheaccuracyoftheaccidentanalysisAsaresult，researchingontheeffectsofthelocationofthecenterofmasswillplayanimportantroleonsolv