娄茂昆_冲压模具结构分析和优化方法研究

Altair2009HyperWorks-1-Altair2009HyperWorksStudyontheOptimizationandAnalysisMethodofStampingDieStructurePAM-STAMP2GHyperMeshRADIOSSOptiStructOptiStructAbstract:Sofartherearenotmanyinvestigationsonthestructuralanalysisofstampingdie.Withthehigherrequirementsofweightreductionandwidespreaduseofhigh-strengthsteel,astrongemphasisshouldbecarriedoutontheresearchofdeformationandstressofstampingdie.Amethodofstructuralanalysisandtopologyoptimizationisproposedtowardstypicalautomobilepaneldie.Usingstampingsimulationcode(PAM-STAMP2G),modelingtool(HyperMesh)andFEMsolver(RADIOSS),thestructuraldeformationofthediecanbepredicted.Toolsareregardedasrigidbodyinstampingsimulationandelasticbodyinstructureanalysis,respectively.Furthermore,topologyoptimizationofdiestructureisimplementedbyOptiStruct.Itisfoundthatthismethodcanreducetools’massgreatlyandcomeupanewmethod.Keywords:stampingdie,FEM,topologyoptimization,diestructure,OptiStruct1USLAB35%21[1]USLAB-AVC80%[2],-2-Altair2009HyperWorks[3][4]11Murata[5]Lee[6-7]Conor[8][6-8][9-10]14.81%[10][10][10]22.1HyperMeshPAM-STAMP[11]FORTRANHyperMesh[12]-3-Altair2009HyperWorksRADIOSS222.23DC061720mm×1260mm1600KN71mmAccurate0.12Belytschlko-Tsay(BT)54HT30011E/GPaµsσ/MPanrmmkg/mm3DC062100.301600.221.990.807.80E-6HT3001050.26210———7.25E-634-4-Altair2009HyperWorksFORTRANHyperMesh552.367VonMises14mm14~28mm28~56mm56~71mm6VonMises-5-Altair2009HyperWorksab7312limmin:()(,,,)..()()1,,1,,nfracpjLUiiiCXCxxxstmXmDXdjmXXXin=≤≤=≤≤=KKKX——C(X)——fracm————pmjD——d——limLiXUiX——[13]BendsoeRozvanySigmund01-6-Altair2009HyperWorks[14]OptiStruct5300.1mm25%30%35%30%25898250.392/25%30%34.635%40.2%2%t1.561.872.152.172.50N·mm297.54227.50205.83186.56212.95(mm)6.89e-35.31e-35.41e-34.15e-35.34e-3VonMises(MPa)16.2016.3016.3012.5013.64114%3.3%1-7-Altair2009HyperWorks25ULSAB1998No.510-11[2]AutomotiveGroupofInternationalIronandSteelInstitute.ULSAB2AVCEngineeringRepoiu,JenniferDong,JimmyZhang,ChuantaoWang.tegratedformingsimulationsanddiestructuralanalysisforoptimaldiedesigns[A].[C].Detroit,USA,August,2005.Vol.A,962100[J]2000(3)22-26vesticity,1993,1216-1221.or,iefor:sofcoldforgingdiesusingFEA[J].J.Mater.8,15(2)42-45Group.PAM-STAMP2GUser'sGuide,2008ptiStruct[J][J]2005(10)14%3%[1]rt,2001.10[3]VenkatAitharaju,MalcolmLInNumisheet2005[4][5]Y.Murata,Y.Yabuki.Measurementofdiedeformationinforgingbycapacitidisplacementtransducer[C].ProceedingsoftheFourthInternationalConferenceonTechnologyofPla[6]Y.SLee,JHLee,JongUngChoi,etal.Experimentalandanalyticalevaluationfelasticdeformationbehaviorsofcoldforgingtool[J].J.Mater.Process.Technol.,2002127:73-82[7]Y.SLee,JHLee,T.Ishikawa.Analysisoftheelasticcharacteristicsatforgingdthecoldforgeddimensionalaccuracy[J].J.Mater.Process.Technol.,2002,130-131532-539[8]M.CConor,JMonahan.FailureanalysiProcess.Technol.,2001,117:209-215[9][J]200[10][J]2008,44(8)174-179[11]ESI[12]AltairEngineering,Inc.HyperMeshUser'sGuide,2008[13]HyperMesh/O2008(10)42-44[14],27-29-8-