道路模拟试验用载荷谱样本选择方法

2004054(,201805)(,200092)[]B,,50%,:,,AMethodofSelectingLoadSpectraforRoadSimulationTestZhangJuehui&JinFengShanghaiVolkswagenAutomotiveCo.,Ltd.,Shanghai201805YuZhuopingSchoolofAutomotiveEngineering,TongjiUniversity,Shanghai200092[Abstract]Bycombiningtwomathmethodsofsurvivalestimateinfatiguestatisticsandvctoramplitude,amethodofselectingtheloadspectrasamplewith50%survivalratioundermulti2parameterconditionispro2posed1Andtheprocedureisillustratedtakingtheloadspectraofavehiclerear2axleobtainedfromastandardprovinggroundtestingasanexample.Keywords:Roadsimulationtest,Damage,Survivalratio200369,20038291,,,():(1),;(2);(3);(4),,(1),B,50%2,,35/,,()2004(26)2AutomotiveEngineering2004(Vol.26)No.2,,()2211(),15%,:(1),;(2),,,,,,,,33IGEL,,,,2()12212,85%,,,,(),,1835,50%,3111945MinerPalmgren-Miner:W,m,n1,n2,,nm,,N1,N2,,Nm,,D=mi=1ni/Ni(1)D=1,W,S-N(Woehler),S-N312,,,(50%),5,95%,50%5%[1](Rossow[2]),50%31211Rossow(50%)[2],(F(x)),Rossown,X1X2XiXn1(2)XiPP=3i-13n+1100%(3)i,n31212,1222004(26)2(2)(3)2(1),,L,L1,Xi,|Xi|(2)2,,Xi(2),XmXm(ym1,ym2,,ymL)1,Xm(1,1,1),Xi(yi1/ym1,yi2/ym2,,yiL/ymL),Xi50%3121350%50%,5,,S-N,LMSTecwareS-N50%;30(12,18),,,151()1X12X23X34X45X5111661E-611717E-611524E-611646E-611481E-6231842E-831611E-831544E-851079E-831645E-8311351E-71121058E-711103E-711509E-711163E-73041044E-831555E-831777E-851146E-831563E-8|xi|2106E-062110E-062108E-062109E-061188E-0613,,3X3,2,32X1X12X23X34X45X5111092111131611108560197368211084711019811143511031131122731111113727110545301106880193915111362401941831X12X23X34X45X55189745158075147726192015131663(3),250%450%,411[3],F(Xp),X()XpP(XXp)F(Xp)=P(XXp)=12Xpe-(X-)222dX(4),X,F(Xp)U=X-(5)F(Xp)=P(XXp)=12Upe-U22dX(6)Up=Xp-(7)XpF(Xp)Up2222004(26)2,50%X,X50;,Up(6)PUp,XlgN,(7)lgN50=lgNp+Up3(8)412,50%(),,,()10km,10%,log0.2,log0.2,,log=0.2,10km,10%,90%,50%(8)lgN50=lgN90+U90(9)U9090,N9090,[1],P=90%,Up=1128,,,012;(9)N5018km50%()18km,50%18kmC=Rq/Me(10)C;Rq;Me20km,,(211,212),C=180000/20=9000(),5,:(1),;(2)S2N50%;(3),,1,11:,19972ErwinHaiba,Betriebsfestigkeit.VDI-VerlagGmbH,Duessel2dorf,PrintinGermany,1989,ISBN3-18-400828-2311:,19864WangJerryZ,etal.PowerSteeringSystemKey2LifeTestProce2dureDevelopment.SAE2001-01-0785511:,19903222004(26)2