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1、InternationalJournalofMachineTools&Manufacture45(2005)537–548www.elsevier.com/locate/ijmactoolExpertspindledesignsystemOsamuMaeda,YuzhongCao,YusufAltintas*ManufacturingAutomationLaboratory,DepartmentofMechanicalEngineering,UniversityofBritishColumbia,2324MainMall,Vancouver,BC,CanadaV6T1Z4Recei
2、ved27July2004;accepted24August2004Availableonline5October2004AbstractThispaperpresentsanexpertspindledesignsystemstrategywhichisbasedontheefficientutilizationofpastdesignexperience,thelawsofmachinedesign,dynamicsandmetalcuttingmechanics.Theconfigurationofthespindleisdecidedfromthespecificationsof
3、theworkpiecematerial,desiredcuttingconditions,andmostcommontoolsusedonthemachinetool.Thespindledrivemechanism,drivemotor,bearingtypes,andspindleshaftdimensionsareselectedbasedonthetargetapplications.Thepaperprovidesasetoffuzzydesignrules,whichleadtoaninteractiveandautomaticdesignofspindledrive
4、configurations.Thestructuraldynamicsofthespindleareautomaticallyoptimizedbydistributingthebearingsalongthespindleshaft.TheproposedstrategyistoiterativelypredicttheFrequencyResponseFunction(FRF)ofthespindleatthetooltipusingtheFiniteElementMethod(FEM)basedontheTimoshenkobeamtheory.ThepredictedFRF
5、ofthespindleisintegratedtothechattervibrationstabilitylaw,whichindicateswhetherthedesignwouldleadtochattervibrationfreecuttingoperationatthedesiredspeedanddepthofcutfordifferentflutesofcutters.ThearrangementofbearingsisoptimizedusingtheSequentialQuadraticProgramming(SQP)method.q2004PublishedbyE
6、lsevierLtd.Keywords:Spindledesign;Expertsystem;Chattervibration;Finiteelementmethod;Optimization1.IntroductionPRO-LOG,whichisaprogramminglanguageforexpertsystems.ThebearingarrangementsaredeterminedbytheThespindleisthemainmechanicalcomponentincuttingoperationtype,andtherequiredcuttingforceandma
7、chiningcenters.Thespindleshaftrotatesatdifferentlifeofbearings.WongandAtkinson[2]demonstratedaspeedsandholdsacutter,whichmachinesamaterialknowledgecellapproachfordiversedesigns.Theydividedattachedtothemachinetooltable.Thestaticanddynami
