基于有限元分析的结构优化设计方法

200407261977195612(13620212430068)ANSYSANSYSANSYSU441TP391A10060316(2004)11001803StructureoptimizationdesignbasedonfiniteelementanalysisYEYong1,ZHURuo-yan2(1.CollegeofMechanical&Automation,HuaqiaoUniv,Quanzhou362021,China;2.DepOfMechanicalEngin,HubeiPolitechnicUniv,uhan430068,China)Abstract:ThemethodofoptimizationdesignbasedonANSYSisbrieflyintroducedinthispaper.Thetechniqueandprocessofthestructureoptimizationanalysisthroughtheoptimizationdesignoftrussispresented.Fromthisinstance,itshowsthatthemethodpresentedisfeasiblewhichprovidenewthoughtsforoptimizationdesignofothercomplicatedstructures.Keywords:ANSYSfiniteelementanalysis;truss;optimizationanalysis1[3]Min),,,()(21NxxxXFL=FindNTNRxxxX∈=),,,(21L0),,,()(21≤=NixxxgXgL),,2,1(liL=0),,,()(21==NjxxxhXhL),,2,1(mjL=)(XFix)(Xgi)(Xhjlm2ANSYSANSYSANSYS[1]SOLVEOPEXEANSYS[2]1133.129144mmE=6.89104MPa=2770kg/m3F=445.4kNWTAi(i=110)0~20646mm2DEFL0~51.8mm)10,,1(L=iSIGi0~172.25MPaLINK1iADEFL1SIG23.2,36345ANSYSModelDatabase()OptimizationDatabase()OPSAVEOPRESUOPEXEOPEXERESUMESAVEOPEXE1234569144mm9144mm445.4kN445.4kN9144mmITERATIONNUMBER544842363017131925313741DEFLECTIONDEFLUPPERITERATIONNUMBER2500200015001000500017131925313741A1A3A8A10A4A6A5A2CROSS-SECTIONALAREA(×10**1)ITERATIONNUMBER70006000500040003000200017131925313741STRUCTUREWEIGHT(×10**3)WT63.3201WTkgA8mm2DEFL(mm)SIG8(MPa)160952064631.529.095532331114848.351.5511025429909.853.553.0981523211239853.952.4452023301272452.151.5862523501301851.250.3913022531332549.849.2023522421304649.750.3944022001283853.251.6256095kg2200kg6453mm2.3,53237184ANSYSANSYS[1].ANSYS[M].1999.[2].ANSYS[M].2003.[3].[M].1982.(17)T0i,T9i⎟⎟⎟⎠⎞⎜⎜⎜⎝⎛-=-=4'0400'ijijjijijDDDDFFFFD4,24,T-F23124,2,T~F.3,2T~F[1].()[M].19933336.[2].[M].20012332.2001601208040017131925313741SIG5ITERATIONNUMBERMAXSTRESSSIG7SIG10SIG9SIG8SIG3SIG1SIG4SIG6SIG2T(NM)Ö°051015200203040d=10.3d=8.3d=8.02abc10