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1、ANSYS壓電分析幫助文件位置ANSYSDocumentation→MechanicalAPDL→Coupled-FiledAnalysisGuide→DirectCoupled-FiledAnalysis→2.3.PiezoelectricAnalysis2.3.PiezoelectricAnalysisPiezoelectricsisthecouplingofstructuralandelectricfields,whichisanaturalpropertyofmaterialssuchasquartzandcer
2、amics.Applyingavoltagetoapiezoelectricmaterialcreatesadisplacement,andvibratingapiezoelectricmaterialgeneratesavoltage.Atypicalapplicationofpiezoelectricanalysisisapressuretransducer.Possiblepiezoelectricanalysistypes(availableintheANSYSMultiphysicsorANSYSMechani
3、calproductsonly)arestatic,modal,harmonic,andtransient.Todoapiezoelectricanalysis,youneedtouseoneoftheseelementtypes:PLANE13,KEYOPT(1)=7coupled-fieldquadrilateralsolidSOLID5,KEYOPT(1)=0or3coupled-fieldbrickSOLID98,KEYOPT(1)=0or3coupled-fieldtetrahedronPLANE223,KEY
4、OPT(1)=1001,coupled-field8-nodequadrilateralSOLID226,KEYOPT(1)=1001,coupled-field20-nodebrickSOLID227,KEYOPT(1)=1001,coupled-field10-nodetetrahedronTheKEYOPTsettingsactivatethepiezoelectricdegreesoffreedom,displacementsandVOLT.ForSOLID5andSOLID98,settingKEYOPT(1)
5、=3activatesthepiezoelectriconlyoption.Largedeflections,stressstiffeningeffects,andprestresseffectsareavailableviatheNLGEOMandPSTREScommands.(SeetheCommandReferenceformoreinformationonthesecommands.SeetheStructuralAnalysisGuideandStructureswithGeometricNonlinearit
6、iesoftheMechanicalAPDLTheoryReferenceformoreinformationonthesecapabilities.)Current-technologyelementsPLANE223,SOLID226andSOLID227alsosupportalinearperturbationpiezoelectricanalysis.(SeeLinearPerturbationAnalysisintheStructuralAnalysisGuideforinformationaboutthep
7、rocedure.)ForPLANE13,largedeflectionandstressstiffeningcapabilitiesareavailableforKEYOPT(1)=7.ForSOLID5andSOLID98,largedeflectionandstressstiffeningcapabilitiesareavailableforKEYOPT(1)=3.Inaddition,smalldeflectionstressstiffeningcapabilitiesareavailableforKEYOPT(
8、1)=0.Foralarge-deflectionpiezoelectricanalysis,youmustusenonlinearsolutioncommandstospecifyyoursettings.Forgeneralinformationonthesecommands,refertoSetSolution
