英文外文翻译 计算机辅助过程规划管理信息基础薄板.docx
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英文外文翻译 计算机辅助过程规划管理信息基础薄板.docx
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英文外文翻译计算机辅助过程规划管理信息基础薄板
附录2——外语翻译(原文)
Computeraidedprocessplanningforsheetmetalbasedoninformationmanagement
D.Lutters*,E.tenBrinke,A.H.Streppel,H.J.J.Kals
LaboratoryofProductionandDesignEngineering,UniversityofTwente,
POBox217,7500AEEnschede,Netherlands
Abstract
Duringthelastfewyears,attentioninthemanufacturingcyclehasshiftedtowardsconcurrentengineering(CE).Withthis,theintegrationofthedifferentproductlifecycleprocesseshasbecomeafocusinbothresearchandindustry.However,itisobviousthattheintegrationofallmanufacturingprocesses,takingintoaccountalllifecycleaspectsfrominitialfunctionalrequirementstofinaldisposal,ishardlyfeasibleinthetraditionalway.
Inthispaper,theexecutionofthemanufacturingcyclebasedoninformationmanagementisexplainedbydescribingthedevelopmentofagenericarchitectureforcomputeraidedprocessplanning.Thisarchitectureiselaborateduponforthefieldofsheetmetalmanufacturinginasmallbatchpartenvironment.@2000ElsevierScienceS.A.Allrightsreserved.
Keywords:
Concurrentengineering;CAPP;Architecture
1.Introduction
Intheresearchpresentedhere,itisadvocatedthatthesheerintegrationofmanufacturingprocesseswithintheproductlifecycleisinsuf®cienttoachievetrueintegratedproductdevelopment.Forthispurpose,themainfocusshouldbeontheinformationthatisappliedandgeneratedinthesemanufacturingprocesses.Iftheinformationoftheseparateprocessescanbemadeavailableduringtheentiredevelopmentcycle,itcanbethebasisforthecontroloftheentiremanufacturingcycle.Inordertotakefulladvantageofthemodi®edroleofinformationintheproductdevelopmentcycle,adifferentattitudewithrespecttothemanufacturingprocessesisrequired.
Oneofthemaindifferencesis,thatthephasesinthemanufacturingprocessbecomeinstrumentaltotheinformationrequiredinthemanufacturingprocess.Thisimmediatelyimpliesthatprocessesinthemanufacturingcyclehavetobedefinedasgenericasmuchaspossible.Forexample,itbecomespracticabletointerchangesystemsdevelopedfordifferentproducttypes(prismatic,sheetmetal,etc.).Moreover,iftheinterfacesofthemutualsystemscanbedefinedadequately,thesesystemscanbecomeindependentmodules,thatareabletoperformtheirtaskswithoutbeingdependentonapredefined,sequentialscenario.A®rstprerequisiteforthisistheabilitytoeffectivelymanagetheinformationthatbecomesthebasisofthemanufacturingprocess.
2.Informationmanagement
2.1.Manufacturingengineeringreferencemodel
Inordertobeabletodealwithdifferentviewsonamanufacturingsystem,thesystemisintroducedbymeansofareferencemodel.Areferencemodelrepresentsasystemasanorganisationintermsofitsstructureofrelativelyindependent,interactingcomponents,andintermsofthegloballydefinedtasksofthesecomponents[2].ThemanufacturingengineeringreferencemodelproposedinthepresentcontextisshowninFig.1.
Thismanufacturingengineeringreferencemodelisbasedonthemanufacturingplanning&controlreferencemodelintroducedbyArentsen[1].However,adaptationshavebeenmade,inordertoemphasizetheequivalentimportanceofproducts,ordersandresourcesintheentiremanufacturing
cycle[4].
Companymanagementisconcernedwiththecontrolofcustomerorders.Itisresponsibleforthestrategicdecisionsconcerningtherangeofproductswhichwillbeproducedandtheprocessesandresourceswhicharerequiredtothisend.
Productengineeringreferstoalltheengineeringactivitiesrelatedtotheproductlifecycleofaspecifictypeofproduct.Itisconcernedwiththedesignanddevelopmentofaproducttypeanditsvariants,startingfromfunctionalrequirementsuptofinalrecycling/disposal.
Orderengineeringaddressesthoseactivitiesthatrelateacustomerordertoaspecific(variantofa)product.Itisthetaskoforderengineeringtocomposeproductionordersandtodecidewhengivenbatchesofproductsmustbeprocessedandwithwhichresources.Theobjectiveoforderengineeringisthein-timeexecutionoftheproductionorders.
Resourceengineeringreferstoall(lifecycle)aspectsoftheresources,requiredfortheexecutionoftheproductionactivities.Itthereforeincludesthespecification,design,development,acquisition,preparation,useandmaintenanceoftheresourcesofacompany.
Productionisconcernedwiththeactualexecutionoftheplansgeneratedbytheengineeringtasks.Fromproduction,informationisfedbacktotheseengineeringtasks.
Inthemanufacturingengineeringreferencemodel,informationmanagementisdiscernedasthekernel.Thisillustratestheopinionthattheavailabilityandaccessibilityofinformationispreferredoversheerdataexchange.
2.2.Informationmanagement
Inrecogni
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