毕业论文外文翻译-以冲压工艺规划知识进行的级进模设计

济南大学泉城学院毕业设计外文资料翻译题目现代快速经济制造模具技术专业机械制造及其自动化班级学生学号指导教师二一五年三月十六日2INTJADVMANUFTECHNOL200526774783DOI101007/S0017000320378AKNOWLEDGEBASEDBLACKBOARDFRAMEWORKFORSTAMPINGPROCESSPLANNINGINPROGRESSIVEDIEDESIGNSBTORGABRITTONWYZHANGSPRINGERVERLAGLONDONLIMITED2004ABSTRACTITISWIDELYACCEPTEDTHATSTAMPINGPROCESSPLANNINGFORTHESTRIPLAYOUTISAKEYTASKINPROGRESSIVEDIEDESIGNHOWEVER,STAMPINGPROCESSPLANNINGISMOREOFANARTRATHERTHANASCIENCETHISISINSPITEOFRECENTADVANCESINTHEFIELDOFARTIFICIALINTELLIGENCE,WHICHHAVEACHIEVEDALOTOFSUCCESSININCORPORATINGBUILTININTELLIGENCEANDAPPLYINGDIVERSEKNOWLEDGETOSOLVINGTHISKINDOFPROBLEMTHEMAINDIFFICULTYISTHATEXISTINGKNOWLEDGEBASEDEXPERTSYSTEMSFORSTAMPINGPROCESSPLANNINGLACKAPROPERARCHITECTUREFORORGANIZINGHETEROGENEOUSKNOWLEDGESOURCESKSSINACOOPERATIVEDECISIONMAKINGENVIRONMENTTHISPAPERPRESENTSAKNOWLEDGEBASEDBLACKBOARDFRAMEWORKFORSTAMPINGPROCESSPLANNINGTHEPROPOSEDAPPROACHSPEEDSUPTHEPROGRESSIVEDIEDESIGNPROCESSBYAUTOMATINGTHESTRIPLAYOUTDESIGNANEXAMPLEISINCLUDEDTOSHOWTHEEFFECTIVENESSOFTHEPROPOSEDAPPROACHKEYWORDSKNOWLEDGEBASEDOBJECTORIENTEDPROGRESSIVEDIEDESIGNSTAMPINGPROCESSPLANNING1INTRODUCTIONPROGRESSIVEDIESFORPRODUCINGSHEETMETALPARTSINMASSPRODUCTIONHAVEBEENWIDELYAPPLIEDINVARIOUSINDUSTRIESSUCHASAEROSPACE,ELECTRONICS,MACHINETOOLS,AUTOMOBILES,ANDREFRIGERATIONTHESEDIESCANPERFORMPIERCING,NOTCHING,CUTOFF,BLANKING,LANCING,BENDING,SHAVING,DRAWING,EMBOSSING,COINING,TRIMMING,ANDOTHERMISCELLANEOUSFORMINGOPERATIONSATASINGLESETUPHENCE,APROGRESSIVEDIEISGENERALLY3VERYCOMPLEXSTAMPINGPROCESSPLANNINGANDDIESTRUCTUREDESIGNAREDIFFICULTANDDEMANDINGTASKSSTAMPINGPROCESSPLANNINGSTARTSWITHANUNFOLDINGOFAMODELOFSTAMPEDMETALPARTTOPRODUCEAFLATPATTERN,FOLLOWEDBYNESTINGTHEPATTERNTOPRODUCEABLANKLAYOUTNEXT,STAMPINGOPERATIONSAREPLANNEDANDOPERATIONSAREASSIGNEDTODIESTATIONSTHERESULTINGPLANISTYPICALLYREPRESENTEDASASTRIPLAYOUT,WHICHGUIDESTHESUBSEQUENTDIESTRUCTUREDESIGNTHEPRODUCTIVITY,ACCURACY,COST,ANDQUALITYOFAPROGRESSIVEDIEMAINLYDEPENDSONTHESTRIPLAYOUT,ANDHENCEASTAMPINGPROCESSHOWEVER,STAMPINGPROCESSPLANNINGSTILLREMAINSMOREOFANARTRATHERTHANASCIENCEHISTORICALLY,THISACTIVITYISMAINLYCARRIEDOUTMANUALLY,BASEDONDESIGNERSTRIALANDERROREXPERIENCE,SKILLANDKNOWLEDGERECENTADVANCESINTHEFIELDOFARTIFICIALINTELLIGENCEAIHAVEGIVENRISETOTHEPOSSIBILITYTOCONSTRUCTAIBASEDSYSTEMSTHATINCORPORATEBUILTININTELLIGENCEANDAPPLYDIVERSEKNOWLEDGETOSOLVINGPROGRESSIVEDIEDESIGNPROBLEMS,INCLUDINGSTRIPLAYOUTDESIGNAUTOMATIONTHEDIVERSEKNOWLEDGESOURCESKSSRELATEDTOSTAMPINGPROCESSPLANNINGINCLUDEUNFOLDINGKNOWLEDGETOPRODUCEAFLATPATTERN,NESTINGKNOWLEDGETOPRODUCEABLANKLAYOUT,MAPPINGKNOWLEDGETOTRANSFORMSTAMPINGFEATURESINTOSTAMPINGOPERATIONS,ANDSTAGINGKNOWLEDGETOSEQUENCETHESTAMPINGOPERATIONSADISCUSSIONOFSOMEKNOWLEDGEBASEDPROGRESSIVEDIEDESIGNWORKRELATEDTOOURSTUDYCANBEFOUNDINSECT2HOWEVER,THEEXISTINGWORKISBASEDONTHECONVENTIONALARCHITECTUREOFKNOWLEDGEBASEDEXPERTSYSTEMS,WHICHAREINCAPABLEOFMANAGINGHETEROGENEOUSKSSEFFECTIVELYTHISLIMITSBOTHTHEIRPRACTICABILITYANDSCALABILITYTOADDRESSTHEABOVEISSUE,ITISNECESSARYTOPROVIDEACOOPERATIVEPROBLEMSOLVINGSTRATEGYTHATCANFOSTERCOMMUNICATIONBETWEENDIVERSEKSS,ANDACCOMMODATEDIFFERENTKNOWLEDGEREPRESENTATIONSCHEMESWITHINANINTEGRATEDFRAMEWORKHENCE,AKNOWLEDGEBASEDBLACKBOARDFRAMEWORKCONSISTINGOFABLACKBOARDCONTROLSYSTEMANDAFEWINDEPENDENTLYEXECUTINGKSSHAVEBEENDEVELOPEDTHISFRAMEWORKPROVIDESACOOPERATIVEDECISIONMAKINGENVIRONMENTANDFACILITATESAHYBRIDKNOWLEDGEREPRESENTATIONSCHEME,INCLUDINGPROCEDURES,PRODUCTIONRULES,ANDOBJECTORIENTEDREPRESENTATIONSAPROTOTYPESYSTEMHASBEENIMPLEMENTEDUSINGTHEOBJECTORIENTEDEXPERTSYSTEMSHELLCLIPSCLANGUAGEINTEGRATEDPRODUCTIONSYSTEM1,WHICHISINTERFACEDWITHAPARAMETRICANDFEATUREBASEDCADSYSTEM,SOLIDEDGETHROUGHCANEXAMPLEISPROVIDEDTODEMONSTRATEOURAPPROACHANDTOSHOWITSEFFECTIVENESSINSTAMPINGPROCESSPLANNING2RELATEDWORKRESEARCHINTHECOMPUTERAIDEDSTAMPINGPROCESSPLANNINGHASBEENWIDELYREPORTED4SINCETHE1970STHEADVANTAGESOFAUTOMATEDPROCESSPLANNINGAREPRODUCTIVITYIMPROVEMENTS,COSTREDUCTIONS,ANDDESIGNAUTOMATIONFROMTHEMID1970STOMID1980S,THEFIRSTGENERATIONOFCAD/CAMSYSTEMSFORPROGRESSIVEDIEDESIGNWEREDEVELOPED25,THOUGHFEWOFTHEMAREBASEDONAITECHNIQUESTHESEEARLYSYSTEMSARECHARACTERIZEDBYBASICCOMPUTERGRAPHICSFACILITIES,STANDARDIZATIONOFDIECOMPONENTS,ANDSTANDARDIZATIONOFDESIGNPROCEDURESTHEYREDUCEDDESIGNANDDRAFTINGLEADTIMEHOWEVER,ASTHESESYSTEMSREPRESENTDESIGNKNOWHOWINTHEFORMOFCONVENTIONALPROCEDURALPROGRAMMINGLANGUAGES,ONLYGENERATIONOFTHEDIEPARTLISTANDDRAFTINGOFTHEASSEMBLYANDPARTDRAWINGSAREEXECUTEDUSINGCOMPUTERSTHEDESIGNERSTILLNEEDSTODECIDEMOSTOFTHEIMPORTANTDECISIONSINTERACTIVELY,INCLUDINGSTRIPANDDIELAYOUTSSINCETHELATE1980S,SIGNIFICANTEFFORTSHAVEBEENMADEBYWORLDWIDERESEARCHERSTOINTEGRATEAWIDEVARIETYOFAIANDTRADITIONALCADAPPROACHESTODEVELOPDEDICATEDPROGRESSIVEDIEDESIGNAUTOMATIONSYSTEMS,INCLUDINGSTRIPLAYOUTDESIGNAUTOMATIONKNOWLEDGEBASEDAPPROACHISAPOPULARAITECHNIQUETHATHASBEENUSEDININTELLIGENTSTAMPINGPROCESSPLANNINGANDDIEDESIGNSYSTEMFOREXAMPLE,RESEARCHERSATTHEUNIVERSITYOFMASSACHUSETTS,USAHAVEDESCRIBEDAKNOWLEDGEBASEDSYSTEMFORDESIGNOFPROGRESSIVESTAMPINGDIESFORASIMPLEHINGEPART6THESYSTEMGENERATEST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