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ID:5677744
大小:294.00 KB
页数:15页
时间:2017-12-22
《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,更多相关内容在教育资源-天天文库。
1、DevelopingaFiniteElementAnalysisAgentPadmanabhDabkeIntroductionRecentlythereisatrendtowardsusingitintheearlystagesofdesign.AdesignermayuseFEAjusttovalidatethestructuralintegrityofadesignorshemayuseitforstructuraloptimizationalongwiththeparametrizeddesig
2、ntechniques.ThispaperexaminestherequirementsofastructuralanalysisagentandproposesanarchitecturetofacilitateFEAinaconcurrentdesignenvironment.ThenextsectionbrieflydescribeshowFEAisusedinatypicalindustrialsetup.Section3presentsasurveyofexistingFEtools.Sec
3、tion4discussessomeissuesrelatedtothedevelopmentofanFEAagent.Section5proposesanarchitecturefortheFEAagentthataddressestheissuesdescribedinSection4andfinallySection6presentstheconcludingremarks.StepsinFiniteElementAnalysisTheprocessofFEAstartswithidentifi
4、cationoftheregionofinterestandtheformulationofthephysicalproblem。[1].Theregionofinterestmightbeanassembly,acomponentoraportionofacomponent(oranassembly).Theinteractionoftherestoftheassemblyandtheenvironmentalconditionswiththeregionofinterestiscapturedin
5、twoways.Onewaytorepresentthisinteractionistoidealizethemasloadsanddisplacementconstraintsontheregionofinterest.Forexampleaspotweldfixingacomponenttoabiggerstructurewillresultinaconstrainingallthedegreesoffreedomatthatpoint.Theothercommonlyusedmethodisto
6、usespringand/orgapelements.AnalystsoftendrawaFreeBodyDiagramoftheregionofinteresttoclarifyitsinteractionwiththerestoftheassemblyandtogainmoreinsightintoitsstructuralbehavior.RequiredcomponentsandassembliesarethenretrievedfromtheSolidModelingsystemintoth
7、efiniteelementpackage.Inrecentyearsanumberofcommercialsystemshavestartedofferingboth:FEAandSolidModelingcapabilities.Inthiscase,thedataexchangemayoccurbetweentwomodulesofthesamepackage.Theoriginaldesigngeometryissometimestoocomplicatedforthepurposeofana
8、lysis.Theanalystmaychoosetosimplifyitsothatitiseasiertomeshandincurslesscomputationalcost.ThistaskofsimplifyingthedesigngeometryisreferredtoasGlobalIdealization.GlobalIdealizationmayinvolvedeletion/modificationofsomeofthegeometri
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