机械外文文献及翻译.doc

机械外文文献及翻译.doc

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1、.与机械相关的外文及翻译MultidisciplinaryDesignOptimizationofModularIndustrialRobotsbyUtilizingHighLevelCADTemplates1、IntroductionInthedesignofcomplexandtightlyintegratedengineeringproducts,itisessentialtobeabletohandleinteractionsbetweendifferentsubsystemsofmultidisciplinarynature[1].Toachieveanoptimaldesig

2、n,aproductmustbetreatedasacompletesysteminsteadofdevelopingsubsystemsindependently[2].MDOhasbeenestablishedasaconvincingconcurrentdesignoptimizationtechniqueindevelopmentofsuchcomplexproducts[3,4].Furthermore,ithasbeenpointedoutthat,regardlessofdiscipline,basicallyallanalysesrequireinformationtha

3、thastobeextractedfromageometrymodel[5].Hence,accordingtoBow-cutt[1],inordertoenableintegrateddesignanalysisandoptimizationitisofvitalimportancetobeabletointegrateanautomatedparametricgeometrygenerationsystemintothedesignframework.Theautomatedgeometrygenerationisakeyenablerforso-calledgeometry-in-

4、the-loop[6]multidisciplinarydesignframeworks,wheretheCADgeometriescanserveasframeworkintegratorsforotherengineeringtools.Toeliminatenoncreativework,methodsforcreationandautomaticgenerationofHLCthavebeensuggestedbyTarkian[7].TheprincipleofhighHLCtsissimilartohighlevelprimitives(HLP)suggestedbyLaRo

5、ccaandvanTooren[8],withtheexceptionthatHLCtsarecreatedandutilizedinaCADenvironment.Otherwise,thebasicsofbothHLPandHLCtcan,assuggestedbyLaRocca,becomparedtoparametricLEGOVRblockscontainingasetofdesignandanalysisparameters.Theseareproducedandstoredinlibraries,givingengineersoracomputeragentthe..pos

6、sibilitytofirsttopologicallyselectthetemplatesandthenmodifythemorphology,meaningtheshape,ofeachtemplateparametrically.2、MultidisciplinaryDesignFrameworkMDOisa“systematicapproachtodesignspaceexploration”[17],theimplementationofwhichallowsthedesignertomaptheinterdisciplinaryrelationsthatexistinasys

7、tem.Inthiswork,theMDOframeworkconsistsofageometrymodel,afiniteelement(FE)model,adynamicmodelandabasiccostmodel.Thegeometrymodelprovidestheanalysistoolswithgeometricinput.Thedynamicmodelrequiresmasspropertiessuchasmass,

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