基于改进模糊神经网络的铣削加工参数选择.pdf

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1、机床与液压Jun．2013HydromechatronicsEngineeringVe1．41No．12DOI：10．3969／j．issn．1001-3881．2013．12．010SelectionMillingParametersBasedonImprovedFuzzyPetriNetsQIAOYinhu'，HANJiang，ZHANGChunyan，CHENJieping2J．SchoolofMechanicalandAutomotiveEngineering，HefeiUniversityofTe

2、chnology，Hefei230009，China；2．EngineeringofMechatronicsandVehicle，AnhuiScienceandTechnologyUniversity，Fengyang233100，ChinaAbstract：Thispaperfocusesontheselectionofmachiningparametersofmillingoperation．AcompactselectionmethodbasedonexpeRrules．whichworeobtain

3、edfrOmexperimentalresultsandextractedfromtheknowledgeofskiledoperators．ispresented．Amachiningmodeliscon-structedbasedonafuzzyPetrinets．Theoptimalcuttingparametersaresubjectedtoanobjec-tivefunctionofmaximumproductionrateorminimumproductioncostwiththeconstra

4、intsofapermissibleIimitofsurfaceroughness．curingforceandafeasiblerangeofcuringparameters．Thefuzzylogicmodelhasbeenusedinthedrillingoperationtoselectdrilingspeedsforonekindofmaterialinthispaper．Therelationshipbetweenagivenmaterialhardnessanddrilingspeedcanb

5、edescribedandevaluatedbythefuzzyrelationfordiferentcuttingtoolmaterialsanddifer-entholediametersandfeedrates．Anapplicationexampleispresentedandsolvedtoillustratetheefectivenessofthepresentedalgorithms．Keywerds：fuzzypetrinets，eficiencyandreliability，curingp

6、arameterselectioncountry．Thissituationurgestheneedtofordevelope-1．Introductioningmorescientificapproachestoselectcuttingtoolsandcuttingconditionsinordertoobtaintheforopti-Duetohighcapitalandmachiningcosts，theremumeconomicandtechnologicalmachiningperform-is

7、aneconomicneedtooperatethesemachinesasef-ance『2]．Ahumanprocessplannerselectsmachi．ficientlyaspossibleinordertoobtaintherequiredningprocessparametersaccordingtousinghisownex-payback．Thesuccessofthemachiningoperationperienceorfromthehandbooks．Buttheseparame-

8、dependsontheselectionofmachiningprocessparam-tersdonotgiveoptimalresult．Variousoptimizationeters．Properselectionofprocessparametersplayastrategiesandalgorithmswhichcoversrangingfromsignificantroletoensurequal