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1、上海交通大学工程硕士学位论文AbstractSTUDYOFELECTRICPRECIPITATORMECHANICALSTRUCTURALOPTIMIZATIONMETHODBASEDONSKOABSTRACTStructuraltopologyoptimizationisthemostchallengingandhottest,aswellasmostdifficultresearchtopicinstructureoptimization.Comparedwiththeconventionalsizeoptimizat
2、ionandshapeoptimization,topologyoptimizationhasmoredesigndegrees,andcangetmorebenefit,sothatitismoreattractiveforengineers.Withthedevelopmentoftopologyoptimization,itisbeingappliedtoengineeringpracticegradually.Forexample,base-structuralmethodusedindiscretetopolog
3、yoptimizationandHomogenizationmethod、Variablethicknessmethod、VariabledensitymethodusedinContinuumtopologyoptimizationandsoon.Thispaperstudiesabionicapproachofstructuraltopologyoptimization—theSKOmethodwhichscarcelyisappliedtothepracticaldesign,andrealizesSKOmethod
4、usingAPDLlanguageandANSYSplatform.SKOmethodisbasedonbiologicaladaptivegrowthlawinnature,thatis,materialshouldbeaddedwheretheloadingisgreat,whilematerialshouldberemovedwheretheloadingissmall.Fortheconceptofstructuraldesignoptimization,itmeansthatstressofeverypointi
5、nthestructureshouldachievethesamestress,inotherwords,theoptimalstructureshouldsatisfytheuniformaxiom.First,therelationshipbetweenYoung’smodulusandthestressintheSKOmethodisstudied,whichisthekeyissuesofSKOmethod.Thenittakesplateshellstructurereinforcementastheresear
6、chobject,establishmathematicalmodelofplateshellstructurereinforcementdistributionbionicdesignmethod,analysisofthebionicdesignmethod，usesthismethodtostudyplateshellstructureofthebasestructureofthe-II-上海交通大学工程硕士学位论文Abstractbuilding,stiffenerbias,crosssectiontypeofde
7、signandreinforcementsectionsizeoptimization.AccordingtoANSYSsecondarydevelopmenttechnology,itrealizesplateshellstructurereinforcementdistributionbionicdesignsoftware.Asapracticalapplication,theoutletstructureoflargeelectrostaticprecipitator（E.P）isoptimizedbythesug
8、gestedmethod.TheresultsshowthatSKOoptimizationmethodcanrapidlyoptimizeshellstructuresandobtaintheapproximateoptimizationmodel.Comparedwithtraditionallys
