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外文翻译--智能腔布置设计系统的注塑模具--原文.pdf

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外文翻译--智能腔布置设计系统的注塑模具--原文.pdf

INTERNATIONALJOURNALOFCAD/CAMVOL2,NO1,PP69752002ANINTELLIGENTCAVITYLAYOUTDESIGNSYSTEMFORINJECTIONMOULDSWEIGANGHUANDSYEDMASOODINDUSTRIALRESEARCHINSTITUTESWINBURNEIRIS,SWINBURNEUNIVERSITYOFTECHNOLOGY,HAWTHORN,MELBOURNE,AUSTRALIA3122ABSTRACT−THISPAPERPRESENTSTHEDEVELOPMENTOFANINTELLIGENTCAVITYLAYOUTDESIGNSYSTEMICLDSFORMULTIPLECAVITYINJECTIONMOULDSTHESYSTEMISINTENDEDTOASSISTMOULDDESIGNERSINCAVITYLAYOUTDESIGNATCONCEPTDESIGNSTAGETHECOMPLEXITIESANDPRINCIPLESOFCAVITYLAYOUTDESIGNASWELLASVARIOUSDEPENDENCIESININJECTIONMOULDDESIGNAREINTRODUCEDTHEKNOWLEDGEINCAVITYLAYOUTDESIGNISSUMMARIZEDANDCLASSIFIEDTHEFUNCTIONALITY,THEOVERALLSTRUCTUREANDGENERALPROCESSOFICLDSAREEXPLAINEDTHEPAPERALSODISCUSSESSUCHISSUESASKNOWLEDGEREPRESENTATIONANDCASEBASEDREASONINGUSEDINTHEDEVELOPMENTOFTHESYSTEMTHEFUNCTIONALITYOFTHESYSTEMISILLUSTRATEDWITHANEXAMPLEOFCAVITYLAYOUTDESIGNPROBLEMKEYWORDSINTELLIGENTDESIGN,CAVITYLAYOUTDESIGN,INJECTIONMOULDDESIGN,CASEBASEDREASONING,DESIGNSUPPORTSYSTEM1INTRODUCTIONINMANUFACTURING,THEINJECTIONMOULDINGISONEOFTHEMOSTWIDELYUSEDPRODUCTIONPROCESSESFORPRODUCINGPLASTICPARTSWITHHIGHPRODUCTIONRATEANDLITTLEORNOFINISHINGREQUIREDONPLASTICPRODUCTSTHEPROCESSCONSISTSOFINJECTINGMOLTENPLASTICMATERIALFROMAHOTCHAMBERINTOACLOSEDMOULD,ALLOWINGTHEPLASTICTOCOOLANDSOLIDIFYANDEJECTINGTHEFINISHEDPRODUCTFROMTHEMOULDFOREACHNEWPLASTICPRODUCT,THEINJECTIONMOULDINGMACHINEREQUIRESANEWINJECTIONMOULDDESIGNANDMANUFACTUREOFINJECTIONMOULDISATIMECONSUMINGANDEXPENSIVEPROCESSANDTRADITIONALLYREQUIRESHIGHLYSKILLEDTOOLANDMOULDMAKERSANINJECTIONMOULDCONSISTSOFSEVERALCOMPONENTS,WHICHINCLUDEMOULDBASE,CAVITIES,GUIDEPINS,ASPRUE,RUNNERS,GATES,COOLINGWATERCHANNELS,SUPPORTPLATES,SLIDESANDEJECTORMECHANISM1DESIGNOFMOULDISALSOAFFECTEDBYSEVERALOTHERFACTORSSUCHASPARTGEOMETRY,MOULDMATERIAL,PARTINGLINEANDNUMBEROFCAVITIESPERMOULDWITHTHEADVANCESINCOMPUTERTECHNOLOGYANDARTIFICIALINTELLIGENCE,EFFORTSHAVEBEENDIRECTEDTOREDUCETHECOSTANDLEADTIMEINTHEDESIGNANDMANUFACTUREOFANINJECTIONMOULDINJECTIONMOULDDESIGNHASBEENTHEMAINAREAOFRESEARCHSINCEITISACOMPLEXPROCESSINVOLVINGSEVERALSUBDESIGNSRELATEDTOVARIOUSCOMPONENTSOFTHEMOULD,EACHREQUIRINGEXPERTKNOWLEDGEANDEXPERIENCEMOULDDESIGNALSOAFFECTSTHEPRODUCTIVITY,MOULDMAINTENANCECOST,MANUFACTURABILITYOFMOULD,ANDTHEQUALITYOFTHEMOULDEDPARTMOSTOFTHEWORKEXPERTSYSTEMS,KNOWLEDGEBASEDSYSTEMSANDARTIFICIALINTELLIGENCETOELIMINATEORSUPPLEMENTTHEVASTAMOUNTOFHUMANEXPERTISEREQUIREDINTRADITIONALDESIGNPROCESSKRUTHANDWILLEMS2DEVELOPEDANINTELLIGENTSUPPORTSYSTEMFORTHEDESIGNOFINJECTIONMOULDSINTEGRATINGCOMMERCIALCAD/CAM,ARELATIONALDATABASEANDANEXPERTSYSTEMLEEETAL3PROPOSEDASYSTEMATICMETHODOLOGYANDKNOWLEDGEBASEFORINJECTIONMOULDDESIGNINACONCURRENTENGINEERINGENVIRONMENTRAVIWONGSEANDALLADA4DEVELOPEDANEURALNETWORKBASEDDESIGNSUPPORTTOOLTOCOMPUTETHEMOULDCOMPLEXITYINDEXTOHELPMOULDDESIGNERSTOASSESSTHEIRPROPOSEDMOULDDESIGNONMOULDMANUFACTURABILITYKWONGANDSMITH5DEVELOPEDACOMPUTATIONALSYSTEMFORTHEPROCESSDESIGNOFINJECTIONMOULDINGBASEDONTHEBLACKBOARDBASEDEXPERTSYSTEMANDTHECASEBASEDREASONINGAPPROACH,WHICHINCLUDESMOULDDESIGN,PRODUCTIONSCHEDULING,COSTESTIMATIONANDDETERMINATIONOFINJECTIONMOULDINGPARAMETERSBRITTONETAL6DISCUSSEDTHEINJECTIONMOULDDESIGNFROMAFUNCTIONALPERSPECTIVEUSINGFUNCTIONALDESIGNKNOWLEDGEANDANUMBEROFKNOWLEDGELIBRARIESMOKETAL7DEVELOPEDANINTERACTIVEKNOWLEDGEBASEDCADSYSTEMFORINJECTIONMOULDDESIGNINCORPORATINGCOMPUTATIONAL,KNOWLEDGEANDGRAPHICMODULESSEVERALSTUDIESHAVEALSOBEENMADEONIMPROVINGTHEDESIGNOFSPECIFICCOMPONENTSOFANINJECTIONMOULDONGETAL8DEVELOPEDAKNOWLEDGEBASEDANDOBJECTORIENTEDAPPROACHFORTHEDESIGNOFTHEFEEDSYSTEMFORINJECTIONMOULDS,WHICHCANEFFICIENTLYDESIGNTHETYPE,INMOULDDESIGNHASBEENDIRECTEDTOTHEAPPLICATIONOFLOCATIONANDSIZEOFAGATINGSYSTEMINTHEMOULDIRANIETAL9ALSODEVELOPEDASOFTWARESYSTEMFORAUTOMATICDESIGNOFGATINGANDRUNNERSYSTEMSFORINJECTIONMOULDSANDPROVIDEEVALUATIONOFGATINGDESIGNBASEDONSPECIFIEDPERFORMANCEPARAMETERSNEEETAL10PROPOSEDAMETHODOLOGYFORDETERMINATIONOFOPTIMALCORRESPONDINGAUTHORTEL61392148260FAX61392145050EMAILSMASOODSWINEDUAUG01G02INTERNATIONALJOURNALOFCAD/CAMVOL2,NO1,PP6975PARTINGDIRECTIONSININJECTIONMOULDDESIGNBASEDONAUTOMATICRECOGNITIONANDEXTRACTIONOFUNDERCUTFEATURESCHENANDCHOU11DEVELOPEDALGORITHMSFORSELECTINGAPARTINGLINEINMOULDDESIGNBYCOMPUTINGTHEUNDERCUTVOLUMESANDMINIMISINGTHENUMBEROFUNDERCUTSPARKANDKWON12WORKEDONTHEDESIGNOFCOOLINGSYSTEMSININJECTIONMOULDSANDPROPOSEDANOPTIMALDESIGNBASEDONTHERMALANALYSISANDDESIGNSENSITIVITYANALYSISOFTHECOOLINGSTAGEOFTHEINJECTIONMOULDINGPROCESSLIN13WORKEDONTHEUSEOFGATESIZEANDGATEPOSITIONASTHEMAJORPARAMETERSFORSIMULATEDINJECTIONMOULDPERFORMANCEPREDICTIONONEAREAININJECTIONMOULDDESIGN,WHICHHASRECEIVEDLITTLEATTENTION,ISTHEDESIGNOFCAVITYLAYOUTINAMULTIPLECAVITYINJECTIONMOULDCAVITYLAYOUTDESIGNAFFECTSTHEWHOLEPROCESSOFINJECTIONMOULDINGDIRECTLY,SINCEITISONEOFTHEMOSTIMPORTANTPHASESINMOULDDESIGNPROCESSCONSIDERATIONOFCAVITYLAYOUTDESIGNININJECTIONMOULDATCONCEPTDESIGNSTAGEWILLIMPROVETHEQUALITYOFINJECTIONMOULDEDPRODUCTSBECAUSEITISASSOCIATEDWITHTHEDETERMINATIONOFMANYKEYFACTORSAFFECTINGTHEDESIGNANDQUALITYOFMOULDSUCHFACTORSINCLUDENUMBEROFCAVITIES;PARTINGLINE;TYPEOFMOULD;TYPEANDPOSITIONOFGATE;RUNNERSYSTEM;COOLINGSYSTEMANDEJECTIONSYSTEMSOMEOFTHESEFACTORSAREDIFFICULTTOBUILDASTRUEMATHEMATICALMODELSFORANALYSISANDDESIGNTHISPAPERPRESENTSTHEDEVELOPMENTOFADESIGNSUPPORTSYSTEM,CALLEDINTELLIGENTCAVITYLAYOUTDESIGNSYSTEMICLDS,FORMULTIPLECAVITYINJECTIONMOULDSBASEDONKNOWLEDGEBASEDANDOBJECTORIENTEDAPPROACHESITUSESTHECASEBASEDANDRULEDBASEDREASONINGINARRIVINGATTHELAYOUTSOLUTION14ITISBASEDONTHECOMMERCIALSOFTWARESYSTEMNAMED“RETE”,WHICHISANINTEGRATEDDEVELOPMENTPLATFORMFORCUSTOMERSTODEVELOPTHEIROWNKNOWLEDGEBASEDSYSTEMS15THEOBJECTIVEISTOMAKEFULLUSEOFAVAILABLETECHNIQUESINARTIFICIALINTELLIGENCEINASSISTINGMOULDDESIGNERSATCONCEPTDESIGNSTAGE2CAVITYLAYOUTDESIGNININJECTIONMOULDSCURRENTPRACTICEFORINJECTIONMOULDDESIGN,ESPECIALLYCAVITYLAYOUTDESIGN,DEPENDSLARGELYONDESIGNERS’EXPERIENCESANDKNOWLEDGEITWOULDTHEREFOREBEDESIRABLETOUSEKNOWLEDGEENGINEERING,ARTIFICIALINTELLIGENCEANDINTELLIGENTDESIGNTECHNIQUESINGENERATINGANACCEPTABLECAVITYLAYOUTDESIGNININJECTIONMOULDACCURATELYANDEFFICIENTLYINMOULDDESIGN,MOSTOFPATTERNSOFCAVITYLAYOUTANDRULESANDPRINCIPLESOFCAVITYLAYOUTDESIGNCANALSOBEEASILYREPRESENTEDINTHEFORMOFKNOWLEDGE,WHICHCANBEUSEDINMOSTOFKNOWLEDGEBASEDDESIGNSYSTEMSFOREXAMPLE,FORTHELAYOUTPATTERNSSHOWNINFIG1,THECRITERIATOSELECTTHESUITABLELAYOUTPATTERNFORDESIGNAREMAINLYDEPENDENTONWORKINGENVIRONMENTS,CONDITIONSANDREQUIREMENTSOFCUSTOMERANDAREMAINLYBASEDONDESIGNER’SSKILLANDEXPERIENCETOMAKEACHOICEOFCONTRADICTORYFACTORSWILLRELYOBVIOUSLYONDESIGNER’SKNOWLEDGEANDEXPERIENCESITISRATHERSUITABLEFORINTELLIGENTDESIGNTECHNIQUESTOBEUSEDINSYSTEMSDESIGNEDFORSUCHSITUATIONS,ESPECIALLYFORROUTINEORINNOVATIONDESIGNDESIGNOFINJECTIONMOULDMAINLYINVOLVESCONSIDERATIONOFDESIGNOFTHEFOLLOWINGELEMENTSORSUBSYSTEMS1MOULDTYPE2NUMBEROFCAVITIESFIG1SOMEPATTERNSOFCAVITYLAYOUTWITHMULTIPLECAVITIESWEIGANGHUANDSYEDMASOODANINTELLIGENTCAVITYLAYOUTDESIGNSYSTEMFORINJECTIONMOULDSG01G033CAVITYLAYOUT4RUNNERSYSTEM5EJECTORSYSTEM6COOLINGSYSTEM7VENTING8MOUNTINGMECHANISMMOSTOFTHEELEMENTSAREINTERDEPENDENTSUCHTHATITISVIRTUALLYIMPOSSIBLETOPRODUCEAMEANINGFULFLOWCHARTCOVERINGTHEWHOLEMOULDDESIGNPROCESSSOMEOFTHEDESIGNACTIVITIESFORMACOMPLICATEDDESIGNNETWORKASSHOWNINFIG2OBVIOUSLY,ININJECTIONMOULDDESIGN,ITISDIFFICULTFORDESIGNERTOMONITORALLDESIGNPARAMETERSCAVITYDESIGNANDLAYOUTDIRECTLYAFFECTSMOSTOFOTHERACTIVITIESTHEAPPLICATIONOFADVANCEDKNOWLEDGEBASEDTECHNIQUESTOASSISTDESIGNERINCAVITYLAYOUTDESIGNATCONCEPTDESIGNSTAGEWILLGREATLYASSISTINTHEDEVELOPMENTOFAITISNOTEDFROMFIG1THATANUMBEROFDIFFERENTLAYOUTPATTERNSAREPOSSIBLEWITHMULTIPLECAVITIESINSIDEAMOULDHIGHERTHENUMBEROFCAVITIESOFMOULD,HIGHERTHEPRODUCTIVITYOFTHEINJECTIONMOULDBUTTHISMAYLEADTODIFFICULTIESWITHISSUESSUCHASBALANCINGTHERUNNERSORPRODUCTSWITHTHECOMPLICATEDCAVITYSHAPES,WHICHINTURNMAYLEADTOPROBLEMSOFMOULDMANUFACTURABILITYITISALSOPOSSIBLETHATTHENUMBEROFCAVITIESANDTHEPATTERNOFCAVITYLAYOUTWILLINFLUENCETHEDETERMINATIONOFPARTINGLINE,TYPEOFGATE,POSITIONOFGATE,RUNNERSYSTEMANDCOOLINGSYSTEMMOSTOFTHEMAINACTIVITIESOFMOULDDESIGNARETHEREFORELINKEDTOCAVITYLAYOUTDESIGNFIG3SHOWSTHERELATIONSBETWEENCAVITYLAYOUTDESIGNANDOTHERDESIGNACTIVITIESTHECAVITYLAYOUTDESIGNPROBLEMTHEREFOREDEPENDSUPONANUMBEROFFUNCTIONALITIESOFTHEOVERALLMOULDDESIGNSYSTEM,WHICHINCLUDESFIG2DESIGNNETWORKOFINJECTIONMOULDCOMPREHENSIVECOMPUTERAIDEDINJECTIONMOULDDESIGNANDMANUFACTURINGSYSTEM1DEFINITIONOFDESIGNSPECIFICATIONSINCLUDINGANALYSISANDDESCRIPTIONOFCHARACTERISTICSOFG01G04INTERNATIONALJOURNALOFCAD/CAMVOL2,NO1,PP6975DESIGNPROBLEM2DETERMINATIONOFMOULDTYPE3DETERMINATIONOFNUMBEROFCAVITIES4DETERMINATIONOFORIENTATIONOFPRODUCT5DETERMINATIONOFRUNNERTYPEANDRUNNERCONFIGURATION6DETERMINATIONOFTYPEANDPOSITIONOFGATE7CAVITYLAYOUTCONCEPTUALDESIGN8EVALUATIONOFEJECTIONABILITY,MANUFACTURINGABILITYANDECONOMICPERFORMANCES9DETERMINATIONOFCOOLINGSYSTEM10GRAPHICRESULTSDISPLAYANDOUTPUT3STRUCTUREOFICLDSANDTHEDESIGNPROCESSTHESTRUCTUREOFTHEINTELLIGENTCAVITYLAYOUTDESIGNSYSTEMICLDSISBASEDONCASEBASEDREASONINGANDRULEDBASEDREASONINGDESIGNEDAROUNDTHERETEFIG3RELATIONSHIPDIAGRAMBETWEENCAVITYLAYOUTDESIGNANDOTHERMODULESOFMOULDFIG4OVERALLSTRUCTUREOFICLDSFIG5THEGENERALDESIGNPROCESSOFICLDS

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