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ID:5203550
大小:294.00 KB
页数:15页
时间:2017-12-06
《外文翻译----有限元软件的发展》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、DevelopingaFiniteElementAnalysisAgentPadmanabhDabkeIntroductionRecentlythereisatrendtowardsusingitintheearlystagesofdesign.AdesignermayuseFEAjusttovalidatethestructuralintegrityofadesignorshemayuseitforstructuraloptimizationalongwiththeparametrizeddesigntechniques.Thispaperexaminestherequirements
2、ofastructuralanalysisagentandproposesanarchitecturetofacilitateFEAinaconcurrentdesignenvironment.ThenextsectionbrieflydescribeshowFEAisusedinatypicalindustrialsetup.Section3presentsasurveyofexistingFEtools.Section4discussessomeissuesrelatedtothedevelopmentofanFEAagent.Section5proposesanarchitectu
3、refortheFEAagentthataddressestheissuesdescribedinSection4andfinallySection6presentstheconcludingremarks.StepsinFiniteElementAnalysisTheprocessofFEAstartswithidentificationoftheregionofinterestandtheformulationofthephysicalproblem。[1].Theregionofinterestmightbeanassembly,acomponentoraportionofacom
4、ponent(oranassembly).Theinteractionoftherestoftheassemblyandtheenvironmentalconditionswiththeregionofinterestiscapturedintwoways.Onewaytorepresentthisinteractionistoidealizethemasloadsanddisplacementconstraintsontheregionofinterest.Forexampleaspotweldfixingacomponenttoabiggerstructurewillresultin
5、aconstrainingallthedegreesoffreedomatthatpoint.Theothercommonlyusedmethodistousespringand/orgapelements.AnalystsoftendrawaFreeBodyDiagramoftheregionofinteresttoclarifyitsinteractionwiththerestoftheassemblyandtogainmoreinsightintoitsstructuralbehavior.Requiredcomponentsandassembliesarethenretrieve
6、dfromtheSolidModelingsystemintothefiniteelementpackage.Inrecentyearsanumberofcommercialsystemshavestartedofferingboth:FEAandSolidModelingcapabilities.Inthiscase,thedataexchangemayoccurbetweentwomodulesofthesamepackage.Theoriginaldesigngeometryissometimestoocomplicatedforthepurposeofanalysis.Thean
7、alystmaychoosetosimplifyitsothatitiseasiertomeshandincurslesscomputationalcost.ThistaskofsimplifyingthedesigngeometryisreferredtoasGlobalIdealization.GlobalIdealizationmayinvolvedeletion/modificationofsomeofthegeometri
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