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1、DevelopmentofFlexibleManufacturingSystemusingVirtualManufacturingParadigmSung-ChungKim*andKyung-HyunChoiSchoolofmechanicalengineering,ChungbukNationalUniversity,Cheongju,SouthKorea,Schoolofmechanicalengineering,ChejuNationalUniversity,Cheju,SouthKoreaABSTRACTTheimportan
2、ceofVirtualManufacturingSystemisincreasingintheareaofdevelopingnewmanufacturingprocesses,implementingautomatedworkcells,designingplantfacilitylayoutsandworkplaceergonomics.Virtualmanufacturingsystemisacomputersystemthatcangeneratethesameinformationaboutmanufacturingsyst
3、emstructure,states,andbehaviorsasisobservedinarealmanufacturing.Inthisresearch,avirtualmanufacturingsystemforflexiblemanufacturingcells(VFMC),(whichisausefultoolforbuildingComputerIntegratedManufacturing(CIM),)hasbeendevelopedusingobject-orientedparadigm,andimplementedw
4、ithsoftwareQUEST/IGRIP.Threeobjectmodelsusedinthesystemaretheproductmodel,thefacilitymodel,andtheprocessmodel.Theconcretebehaviorsofaflexiblemanufacturingcellarerepresentedbythetask-orienteddescriptiondiagram,TID.Anexamplesimulationisexecutedtoevaluateapplicabilityofthe
5、developedmodels,andtoprovethepotentialvalueofvirtualmanufacturingparadigm.KeyWords:FMS,virtualmanufacturingsystem,CIM,object-orientedparadigm,TID18Recenttrendsinmanufacturingsystems,suchastheneedforcustomizedproductsbysmallbatchesandforfastproductrenewalrates,havebeende
6、mandingnewparadigmsinmanufacturing.Therefore,themodernmanufacturingsystemsareneededtobeadaptable,andhavethecapabilitytoreconfigureorselfconfiguretheirownstructure.FlexibleManufacturingCells(FMCs)aregenerallyrecognizedasthebestproductivitytoolforsmalltomediumbatchmanufac
7、turing,andarealsobasicunittoconstructashopfloorwhichisanimportantlevefordevelopingcomputerintegratedmanufacturing(CIM).However,duetoitscomplexity,themodelingandoperationmethodologyrelatedtoFMCshouldbeverifiedbeforeimplementation.Asoneofapproachestotheserequirements,Virt
8、ualManufacturing(VM)approachhasbeenintroduced,andknownasaeffectiveparadigmforgeneratingamodelofmanufacturingsy
