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1、2011InternationalConferenceonElectronic&MechanicalEngineeringandInformationTechnologyResearchonConceptualDesignofHeavy-dutyTruckFramebasedonTopologyoptimizationBaozhongQu12,LingjinQu*ElectricalEngineeringl.HenanPolytechnicInstitute,Nanyang,China2.WuHanPolytechnicUniversity,WuHan,Chinaq

2、ubz_1969@163.comAbstract—Topologyoptimizationisadesignmethodbasedonmathematicalprogramming,toseekanoptimumdistributionII.THEORETICALBASISOFTOPOLOGYOPTIMIZATIONofmaterial,greatlyshortenedproductconceptualdesigncycle.Withthehelpofvariable-densitymethod,topologyA.MathematicalbasisofVariab

3、le-densitymethodoptimizationwascarriedoutforheavy-dutytruckframebasedThemainideaofTopologyOptimizationistoonHyperWorksplatform.Thewaynotonlysatisfiedwiththeansweringthequestionwhichistheoptimalmaterialdesignrequirements,butalsoprovidesreferenceforthenewdistributionofstructureinthegiven

4、designarea.Forproductdesign.Itprovidesanimportanttechnicalmessageforcontinuousstructuretopologyoptimization,therearesomeconceptualdesignmaturemethodsasfollows:Uniformmethod,Variable-densitymethod,Evolutionarystructuraloptimizationmethod,Keywords-topologyoptimization;variable-densitymet

5、hod;etc.Thisarticletakesvariable-densitymethodasHeavy-dutytruckframe,conceptualdesignmathematicalbasis.Thebasicideaisthatturncontinuousstructureintofiniteelementmodelfirst,andthenintroducesonehypotheticaldensityvariablematerialswhichdensityisI.PREFACEbetween[0,1]andconsidersthedensityo

6、feveryunitasdesignvariable.Consequently,theTopologyOptimizationTopologyoptimizationtakesmathematicalturnstooptimizingthematerialdistribution.programmingasthetheorybasis.AftertakingfullaccountofIndensityiso-surfacedistributiondrawingmadebyvariousdesignrestraintpremise,carryoutthecalcula

7、tionbyvariable-densitymethodcalculation,thebigstressunitistheoptimizedmathematicaltheoryandthetoolsofcomputerhighdensity,andthesmallstressunitislow.Thegeneralandsoftwareinordertogettheoptimaldistributionandmaterialdensitydistributionisuniformanddensityshapebyoptimizingthematerialunde