Design System of the Twostep Gear Reducer on Casebased Reasoning.pdf

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Design System of the Twostep Gear Reducer on Casebased Reasoning.pdf

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Design System of the Twostep Gear Reducer on Casebased Reasoning

CHINESEJOURNALOFMECHANICALENGINEERN【G Vo1．22，No．5，2009 ·671 · DOI：10·3901／CJME．2009．05．671，availableonlineatwww ． cjmenet．eom；www．cjmenet．corn．ca DesignSystem oftheTwo—stepGearReduceronCase—basedReasoning JIAimin，一，HUANGQuansheng，XUHuanmin，andCHENZhengming。 1CollegeofMechanicalandElectricalEngineering,HohaiUniversity,Changzhou213022，China 2StateKeyLabofCADCG,Zh~iangUniversiyt,Hangzhou310058,China 3CollegeofComputerandInformationEngineering,HohaiUniversity,Changzhou213022，China ReceivedNovember18，2008；revisedMay22，2009；acceptedAugust10 2009；publishedelectronicallyAugust14，2009 ， Abstract：Thedesignofthetwo-stepgearreducerisatediousandtime-consumingprocess ． Forthepurposeofimprovingmeefficiencv andintelligenceofdesignprocess，case—basedreasoning(CBR)technologywasappliedtothedesignofthewto—stepgearreducenFirstly, thecurrentdesing methodforthetwo—stepgearreducerwasanalyzedandtheprinciFlleofCBRwasdescribed ． Secondly,accordingto thecharacteristicsofthereducer,threekeytechnologiesofCBRwerestudiedandthecorrespondingmethodswereprovided， whichare asfollows：(a)anobject—orientedknowledgerepresentationmethod,(b)aretrievalmethodcombiningthenearestneighborwiththe inductionindexing，and(c)acaseadaptationalgorithmcombiningtherevisionbasedonrulewithartificialrevision．Also．forthe purposeofimprovingthecredibility ofcaseretrieval，anew methodofrdeterminingtheweightsofcharacteristicsandasimilarity fomrulawerepresented，whichisacombinatorialweigh