快速成型与虚拟成型在产品设计和制造中的应用毕业课程设计外文文献翻译、中英文翻译、.

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1、RapidPrototypingVersusVirtualPrototypinginProductDesignandManufacturingC.K.Chual,S.H.TehlandR.K.L.Gay2SchoolofMechanical&ProductionEngineering;and2GinticInstituteofManufacturingTechnology,NanyangTechnologicalUniversity,SingaporeAbstractRapidprototyping(RP)istheproductionofaphysicalmodelfromacom

2、putermodelwithouttheneedforanyjigorfixtureornumericallycontrolled(NC)programming.Thistechnologyhasalsobeenreferredtoaslayermanufacturing,materialdepositmanufacturing,materialadditionmanufacturing,solidfreeformmanufacturingandthree-dimensionalprinting.Inthelastdecade,anumberofRPtechniqueshasbeen

3、developed.Thesetechniquesusedifferentapproachesormaterialsinproducingprototypesandtheygivevaryingshrinkage,surfacefinishandaccuracy.Virtualprototyping(VP)istheanalysisandsimulationcarriedoutonafullydevelopedcomputermodel,thereforeperformingthesametestsasthoseonthephysicalprototypes.Itisalsosome

4、timesreferredtoascomputer-aidedengineering(CAE)orengineeringanalysissimulation.Thispaperdescribesacomparativestudyofthetwoprototypingtechnologieswithrespecttotheirrelevaneeinproductdesignandmanufacture.Thestudyinvestigatesthesuitabilityandeffectivenessofbothtechnologiesinthevariousaspectsofprot

5、otyping,whichispartandparcelofanoveralldesignandmanufacturingcycle.Keywords:Productdesign;Rapidprototyping;Virtualprototyping1.IntroductionRapidprototyping(RP)isemergingasakeyprototypingtechnologywithitsabilitytoproduceevencomplicatedpartsvirtuallyovernight・Itenablesproductdesignerstoshortenthe

6、productdesignanddevelopmentprocess・Thecoming-o仁ageofthistechnologyisclearlyreflectedintheinclusionofastereolithography(STL)filegeneratorinmost,ifnotall,CAD.systemstoday・TheSTLfileisthedefactostandardusedbyRPsystemsintherepresentationofthesolid3DCADmodels・WhileRPisarelativelyyoungtechnology,virt

7、ualprototyping(VP)hasbeeninsteadydevelopmentsincethe1970sinmanyguises.Virtualprototypingistakentomeanthetestingandanalysisof3Dsolidmodelsoncomputingplatforms.Today,VPisoftentightlyintegratedwithCAD/CAMsoftwareandsometimesreferredt