ANSYS Workbench 9.0电磁学教程实例

ANSYS,Inc.Proprietary©2004ANSYS,Inc.ANSYSWorkbench9.0ElectromagneticsPaulLethbridgeANSYS,Inc.Proprietary©2004ANSYS,Inc.ContentsWorkbenchElectromagnetics–WorkbenchEmagRoadmap–DesignModeler•EnclosureSymmetry•WindingBodies•WindingTool–SimulationANSYS,Inc.Proprietary©2004ANSYS,Inc.WorkbenchEmagRoadmap•LFEmagcapabilitywillbeexposedoverseveralreleasecycles:–3DMagnetostatics(9.0)–3DCurrentconduction(10.0)–3DElectrostaticsCircuitelements–Timetransient&2D•Workbenchv9.0isthefirstreleasewithelectromagneticanalysiscapability.–Supportsolidandstranded(wound)conductors–Automatedcomputationsofforce,torque,inductance,andcoilfluxlinkage.–Easilysetupsimulationstocomputeresultsasafunctionofcurrent,stroke,orrotorangle.•WorkbenchEmagcapabilityismappedto&accessedvia:–ANSYSEmag(standaloneorenabledtask)–ANSYSMultiphysicslicensekeys.ANSYS,Inc.Proprietary©2004ANSYS,Inc.WorkbenchEmagMarketsTargetmarkets:•Solenoidactuators•Permanentmagnetdevices•Sensors•RotatingElectricmachines–Synchronousmachines–DCmachines–PermanentmagnetmachinesANSYS,Inc.Proprietary©2004ANSYS,Inc.ContentsWorkbenchElectromagnetics–WorkbenchEmagRoadmap–DesignModeler•EnclosureSymmetry•Windingbodies•WindingTool–SimulationANSYS,Inc.Proprietary©2004ANSYS,Inc.Enclosure&FillToolsDesignModeler(DM)includestwofeaturestoallowausertocreateavolumetric“field”bodyassociatedwithasolidmodel.•Enclosuretool:Releasedat8.0.ThistoolisusedtocompletelyenclosethebodiesofamodelinamaterialtypicallyrequiredforanEmaganalysis.•FillTool:Releasedat9.0(Betaat8.1).Similarfunctiontoenclosure,butonlyfillsinteriorcavities.ExampleofahemisphericalenclosurearoundanelectromagnetANSYS,Inc.Proprietary©2004ANSYS,Inc.•TheFillfeaturecreateanewfrozenbodytofillthespaceoccupiedbyaholeorcavity.•Usefulforinteriorcavityelectromagneticapplications.FillFeatureANSYS,Inc.Proprietary©2004ANSYS,Inc.EnclosureSymmetry•Feature:TheEnclosurefeaturenowsupportssymmetrymodelswhentheenclosureshapeisaboxoracylinder:–Upto3threesymmetryplanescanbespecified.–FullorpartialmodelscanbeincludedintheEnclosure.–DuringthemodeltransferfromDesignModelertoSimulation,theenclosurefeaturewithsymmetryplanesformstwokindsofnamedselections:–OpenDomain–SymmetryPlaneANSYS,Inc.Proprietary©2004ANSYS,Inc.ContentsWorkbenchElectromagnetics–WorkbenchEmagRoadmap–DesignModeler•EnclosureSymmetry•Windingbodies•WindingTool–SimulationANSYS,Inc.Proprietary©2004ANSYS,Inc.WindingBodies&Tool•Feature:DesignModeler(DM)includestwonewtoolstoallowausertoeasilycreatecurrentcarryingcoils:–WindingBodies:Usedtorepresentwoundcoilsforsourceexcitation.Theadvantageofthesebodiesisthattheyarenot3DCADobjects,andhencesimplifymodeling/meshingofwindingstructures.–Upon“attachtoSimulation”,WindingBodiesareassignedasConductorbodies.–WindingTool:Usedtocreatemorecomplexcoilsformotorwindings.TheWindingToolusesaWorksheettableformattodrivethecreationofmultiplyconnectedWindingBodies.OrausercanreadinatextfilecreatedbyMSExcel.•Benefits:Veryeasytouse,rapidcreationofcoilwindings.ANSYS,Inc.Proprietary©2004ANSYS,Inc.WindingBodiesAlinebodycanbepromotedtoawindingbody.Turnsandcross-section(CS)dimensionsareenteredWindingcross-sectiondisplayedTangentorientationvector(bluearrow)definesdirectionofcurrent.ANSYS,Inc.Proprietary©2004ANSYS,Inc.WindingToolComplexcoilwindingsmaybecreatedusingtheWindingTool:•TheWindingToolinsertsa“Winding#”intothemodeltree.•A“Details”viewisusedforgeometricplacement.ANSYS,Inc.Proprietary©2004ANSYS,Inc.WindingToolEachWindingconsistsanumberofrelatedWindingBodies.TherelatedWindingBodiesareshownintheParts/Bodiesbranch:WindingBodiesANSYS,Inc.Proprietary©2004ANSYS,Inc.WindingTableFile•EachWindinghasaWindingTableFileassociatedwithit.•TheWindingTableFilecanbecreateddirectlyinDM•TheWindingTableFilecanbeexportedtoorimportedfromatextfile.•EachrowcorrespondstoacreatedWindingBodyANSYS,Inc.Proprietary©2004ANSYS,Inc.WindingTableFile•TheWindingTableFilecanbeexportedtoorimportedfromatextfile.ANSYS,Inc.Proprietary©2004ANSYS,Inc.WindingToolExampleWinding1highlightedwithrotorCompleteDCMotormodelANSYS,Inc.Proprietary©2004ANSYS,Inc.WindingOptions•CoilsmayhavedifferentradiibetweenIN&OUTslots•MultiplecoilsmaybestackedinthesameslotANSYS,Inc.Proprietary©2004ANSYS,Inc.WindingOptions-Skew•Askewanglemaybeidentifiedforthecoilwindingslots•Manymotordesignsemployaskewedcoilform.ANSYS,Inc.Proprietary©2004ANSYS,Inc.WindingSlotClashDetectionWindingToolautomaticallydetectsifthecoilclashedwithanotherpartandwarnstheuserANSYS,Inc.Proprietary©2004ANSYS,Inc.ContentsWorkbenchElectromagnetics–WorkbenchEmagRoadmap–DesignModeler•EnclosureSymmetry•Windingbodies•WindingTool–Simulation•ToolsLayout•Windingbodies•MaterialProperties•AirGapMeshSizing•Conductors•SolutionANSYS,Inc.Proprietary©2004ANSYS,Inc.SimulationToolsLayoutElectromagneticToolbarSimulationEnvironment:•Emagboundaryconditions•ConductorsourceexcitationSolutionResults•Voltage•CurrentDensity•Field•Force•Torque•Inductance•FluxlinkageANSYS,Inc.Proprietary©2004ANSYS,Inc.EmagSimulationWizardInteractivelywalksauserthroughrequiredanalysissteps.ANSYS,Inc.Proprietary©2004ANSYS,Inc.W