基于CAE的后纵梁加强板轻量化研究

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CAE*【】DYNAFORM,B250P1(2mm)DP780(1.4mm)CAE,、2。CAE,DP780,0.6mm、30%。:CAE:U463.32+6:A:1000-3703(2012)06-0054-04StudyonLightweightoftheReinforcementPlateofRearLongitudinalBeamBasedonCAEXuHong1,XiaDing1,GuZhengwei1,ZhaoZhongmin2(1.JilinUniversity;2.FAWBusandCoachCO.,LTD)【Abstract】CAEanalysisismadetothebendingformingprocessofreinforcementplateofrearlongitudinalbeamofavehiclethatusesmaterialB250P1(2mminthickness)andnewmaterialDP780(1.4mminthickness)withsoftwareDYNAFORM,theeffectoffactors,i.e.punch-dieclearance,binderforceanddiefilletradius,etc.,onspringbackpropertyofthesetwomaterialsarecompared.BasedonCAEtechnologyandincombinationwithprocessanddieparameteroptimization,springbackofDP780steelrearlongitudinalbeamreinforcementplateiscontrolledbychangingproductstructure,materialthicknessisthusreducedby0.6mm,andmassisreducedby30%.Keywords:Reinforcementplateofrearlongitudinalbeam,Lightweight,Ultrahighstrengthsteel,CAE觹:(2010ZX04014-072-04);(20090309)。1112(1.;2.)1,[1]。0.05mm、0.01mm0.15mm,6%、12%18%,。,,1/2[2]。,,[3]。、[4]。,1.4mmDP7802mmB250P1,CAE2、,。2U,1。,3°(),,6。:——。B250P1,。DP780,DP780,。21。····54——20126E/GPaνσs/MPaK/MPaε0nr0r45r90B250P12070.28300.6709.30.010.1912.311.411.84DP7802060.3521.671094.50.0059620.1450.5381.0990.60413D3Catia,Dynaform。3Barlat,,Krupkowsky:σ=K(ε0+εp)n(1),K;ε0;εp;n,[5]。2。2,[6,7],、3,3。,,DYNAFORM,,。44.10.9t、1.0t、1.1t、1.3t、1.5t(t),3t,Rd=5mm,Rp=9mm,μ=0.125,23。3,2,DP780。,1.1t,2.7611mm,1mm。34.23t、4t、5t、6t、7t、10t13t(DP780),1.1t,Rd=5mm,Rp=9mm,μ=0.125,24。4,2。,,DP780;,DP780;,,,,10t13t。4,27t。44.32mm、3mm、4mm5mm,3t,1.1t,RP=12B250P1DP7806.05.04.03.02.01.0/mm0.91.01.11.21.31.41.5/tB250P1DP7803.83.43.02.62.21.81.41.0/mm/t12345678910111213····55——9mm,μ=0.125,25。5,,2,,B250P1。,[8],,,5mm。5,DP780B250P1,。5,,DP780。,,,。,,。,,、,()(),[9]。,,()3mm,3D6。63D,:7t,1.1t,5mm。0.85mm,7。789、。8,、,;9,,;,1.96%,20%[10]。,1mm,,0.6mm,30%。(a)(b)8、(a)3.02.62.21.81.41.0/mm2.02.53.03.54.04.55.0/mmB250P1DP780zyx1.000.800.600.400.200.000.500.30-0.1000.100.300.50PART:BLANK0021.000.800.600.400.200.000.500.30-0.1000.100.300.50PART:BLANK002zyx0.8546410.7935950.7325490.6715030.6104570.5494120.4883660.4273200.3662750.3052290.2441830.1831370.1220920.0610460.000000/mmzyx1.3726151.3748691.3771231.3793761.3816301.3838841.3861371.3883911.3906451.3928981.3951521.3974061.3996591.4019131.404167/mm····56——20126(53)2,800r/min1400r/min,ANZT10,0.5~41。1,ANZT10。12r/min5、,,,,。LabVIEW,,。,,,。1.:[].:,2010,39~61.2,,..,2010(4):160~162.3,,..,2001(30):868~870.4VanceJM,FrenchRS.MeasurementofTorsionalVibrationinRotatingMachinery.JournalofMechanisms,Transmissions,andAutomationinDesign,1986(9):565~577.5,,..,2007(5):70~72.6,,..,2001(18):24~27.()201215。····(b)9、6DYNAFORMB250P1(2mm)DP780(1.4mm)CAE,、2。DP780,。CAE,,,,0.6mm、30%。1,,,.CAE.,2010(5):18~22.2,M.F.Shi..,2004,39(7):68~72.3INTERNATIONALIRON&STEELINSTITUTECommitteeonAutomotiveApplications,ADVANCEDHIGHSTRENGTHSTEEL(AHSS)APPLICATIONGUIDELINES,2005.4BKrause,ESeverson,StampingtoolsforUHSSgettougher:newautomotivematerialsforcetoolmaterialtoshiftintohighgear,Fabricator.2004,34(4):40~43.5,,,..,2010,18(6):758~761.6,,,.U.,2009,34(1):39~41.7,,,..,2000,7(1):11~17.8LuoM,WierzbickiT.Numericalfailureanalysisofastretch-bendingtestondua-lphasesteelsheetsusingaphenomenologicalfracturemodel.IntJSolidsStruct,2010,47(22-23):3084~3102.9,..:,2008.10,..,2009(7):62~64.()2012227。zyx1.3232501.3345541.3458571.3571611.3684641.3797681.3910721.4023751.4136791.4249821.4362861.4475901.4588931.4701971.481500/mm0.511.522.533.54ANZT1022021224524222124023026021821625125021825323026657——

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