硕士论文-客车侧碰有限元仿真分析

华中科技大学硕士学位论文客车侧碰有限元仿真分析姓名：施少波申请学位级别：硕士专业：固体力学指导教师：樊建平20080605ICADParasolidADINAAUIBeamShellSolidExplicitdynamic12IIAbstractIntheearlyautomobilesidecrashworthinessanalysis,experimentswastheprimarilymethod,buttheexpenseofthiswaywashigh,moreoverthismethodwouldcostaverylongtime.Now,alongwithcomputertechnology'sdevelopment,theapplicationofsimulatingtheautomobilecollision'sthroughthecomputersimulationhasalreadybeenmoreandmorewidespread.Thefiniteelementmethodwasusedtoresearchcoach'ssidecrashworthiness.First,skeleton'sgeometricmodelwasestablishedinsidetheCADsoftware,thenderivedthegeometricmodelwiththeParasolidform,inductedintothenonlinearfiniteelementsoftwareADINA.Inordertoconsiderthesidecollision,coach'soutercoveringwasestablished.Beam,ShellandSolidelementwereused,andthematerialinthenon-dangerousspotwasusedelasticmaterial,otherpartofconsiderationwasusedRate-dependentplastic-multilinearmaterial.Thenestablishedaequivalentincomingvehicle,andacontactgroupbetweentheincomingvehiclemodelandthecoachmodel.Setaninitialaccelerationfortheincomingvehiclemodel,causedtwovehiclecollisions.ThroughtheExplicitdynamicmethod,analyzedcoach'sdistortionsituationaftersidecollision,foundthatthemaindeformationexistinginthesideoutercovering,thecoachskeletonfloorcrossbeamandthecrossbeamunderthechair.Inordertoobtaintheinfluencethesidecollisiontothepassenger,analyzed12passengerseats'acceleration,speed,deformationunderthreerowstoobtainthechangeinthecollisionprocess.Thenfoundthatthemostdangerousseatinthecollisionprocesswouldbeoutsideofthecentrerow.Throughchangingfloorcrossbeamandthechaircrossbeam’sectionthickness,foundthatincreasingthesetwokindsofbeam’thickness,couldstrengthenthecoach’abilitytoresistthesideimpact.Keywords:Coach;SideImpact;NonlinearFiniteElement;ExplicitDynamicAnalysis_____“√”111.1[1]205070208090199732.626.5211460()[1]“”“”“”[2]20.10.2s[1][3]ADINAADINA1975K.J.BatheADINAADINAAutomaticDynamicIncrementalNonlinearAnalysisADINA84ADINA3PublicDomainCodeADINA1.2[4][5]GB20071-2006[6]200671[7]CNCAP[8][9]VPG(VirtualProvingGround)4[10]VPG/ETAECER95[11]ETA/VPGLS-DYNAECER95[12][13][14][15]ECER95SUVGaryR.ConsolazioDavidR.Cowan[16]ADINAshelltrussbeamsolidsolid5H.Ho[17]ADINAI-deasI-deasADINATransorI-deasADINA1.3LS-DYNAETA/VPGMADYMOPSMPAMCRASHADINAStructureADINAADINAADINAADINAStructure672(FMVSS)(ECEEEC)381989(GB/T11551GB/T11557-89)200011“(CWDR94)”[1]2.1(FMVSS)(NHTSA)196699FMVSS81199612315429(100)21(200)4(300)2FMVSS3FMVSSSAEASTMANSI14ABS6FMVSSNHTSANHTSA1990[1]EECECE1958ECEEECECE91960ECER1ECER21996ECE99ECEECEECE99815526ECEEEC1970ECE1995EEC220107()[1]1951FMVSSECE199595688876FMVSSECE[2]102.21991ECE1995ECER95FMVSSFMVSS214027SID32km/h0EuroSID-150±1km/hFMVSS214ECER95FMVSS214SIDECER95EuroSID-1[18][19]2.311ECER95(FMVSS571.214)(GB15743-1995)[20]2.4()[1]501(HeadPerformanceCriterion)HPCHPC12212.521211()[]ttHICttadttt=−−∫2-1HICa1t2tsHICHPCHPCHPCHPCHPCHPC10002RibDeflectionCriterion)RDC180HzRDCRDC42mm(ViscousCriterion)VC180Hz140mm[()]()(0)dDtDtVCdtD=×(2-2)[()](/)dDtVmsdt=——()(0)DtCD=——D(0)——0.14(m)131.0m/s1.0m/s1.0m/s3(PubicSymphysisPeakForce)PSPF(PSPF)600Hz(PSPF)6KN4(AbdomenPeakForce)APF39mm3600Hz(APF)2.5KN(4.5KN)[1][2]2.51433.1()Courant[21]1943St.Venant1956M.J.TurnerR.W.Clough[22]1960Clough[23]“”19601970R.J.MeloshPianR.E.JonesY.YamamotoZ.M.EliasL.R.HerrmannHellinger—ReissnerO.C.Zienkiewicz2070[24-28]15CAECADCAM();1231234808016EulerLagrangeALE(ArbitraryLagrangianEulerian)EulerALELagrangeLagrange[29-32]3.2TurnerCloughMartinYopp1956JournalofAppliedMechanics2060EdWilsonBerkeleyBerkeleySAPstructuralanalysisprogramBerkeleyNONSAPArgyris1965MarcalKing171967BrownPedroMarcal1969MARCJohnSwansonWestinghouseANSYS1969WestinghouseANSYSDavidHibbittKlausJurgenBatheHibbittPedroMarcal1972HKSABAQUSKlausJurgenBatheEdWilsonBerkeleyMITNONSAPADINA19902070BerkeleyBerkeleyThomasJ.R.HughesRobertTayorJuanSimoJurgenBatheCarlosFelippaPalBerganKasparWillamEkerhardRammMichaelOrtizBerkeleyWilkins1964DOEhydrocodes1964CostantinoIITCostantino1967IBM7040megaflop3200RAM18ControlDataCDC640066002060CDC6400100032kBmegaflop1969SAMSON101972WERCKERLeeOvenshire207030020003033LeeOvenshireHughesIvorMclvorTedShugarCarlyWardPortHueneme1975FordWRECKER10ArgonneBelytschkoSADCATWHAMSDOE1975SandiaSamKeyHONDOSandiaNorthwesternDennisFlanaganPRONTOLawrenceLivermoreJohnHallquist1975John1976DYNABerkeleyJerryGoundreauBobTayborTomHughesJuanSimo19DaveBensonDYNA2DDYNA-3DSanliaLivermoreWilsonJohnDYNAHallquist2080Cray2080DYNAESIPAMCRASHWHAMS1989JohnHallquistLivermoreLSDYDA——DYNA10203.3ADINAADINA1975K.J.BatheADINAADINAAutomaticDynamicIncrementalNonlinearAnalysisADINA84ADINAPublicDomainCodeADINA1986K.J.BatheWatertownADINAR&DADINAADINAADINA20ADINA[33]ADINAADINA-AUIADINAStructureADINA-FCFDADINA-FSIFluidStructureInteractionADINA-TADINA-TMC21ADINAADINAUGSParaSolidCADUGSolidEdgeSolidWorksPro/ECatiaADINAADINAADINAUndoRedoADINA[34][35][36]1ADINAADINA2ADINAADINA223ADINA45ADINA-FSIADINAADINAADINA23ADINAParasolidCADFCBIFlow-Condition-Based-Interpolation3.4ADINAStructure(Explicitdynamic)Thecentraldifferencemethod(CDM)21(2)ttttttUUUUt−+=−+