ANSYS-Workbench-9.0电磁学教程实例剖析优秀PPT.ppt

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1、ANSYS,Inc.Proprietary 2004 ANSYS,Inc.ANSYS Workbench 9.0 ANSYS Workbench 9.0 ElectromagneticsElectromagneticsPaul LethbridgePaul LethbridgeANSYS,Inc.Proprietary 2004 ANSYS,Inc.ContentsWorkbench ElectromagneticsWorkbench Emag RoadmapDesign ModelerEnclosure SymmetryWinding BodiesWinding ToolSimulation

2、ANSYS,Inc.Proprietary 2004 ANSYS,Inc.Workbench Emag Roadmap LF Emag capability will be exposed over several release cycles:3D Magnetostatics(9.0)3D Current conduction(10.0)3D Electrostatics Circuit elementsTime transient&2DWorkbench v9.0 is the first release with electromagnetic analysis capability.

3、Support solid and stranded(wound)conductorsAutomated computations of force,torque,inductance,and coil flux linkage.Easily set up simulations to compute results as a function of current,stroke,or rotor angle.Workbench Emag capability is mapped to&accessed via:ANSYS Emag(stand alone or enabled task)AN

4、SYS Multiphysics license keys.ANSYS,Inc.Proprietary 2004 ANSYS,Inc.Workbench Emag Markets Target markets:Solenoid actuatorsPermanent magnet devicesSensorsRotating Electric machinesSynchronous machinesDC machinesPermanent magnet machinesANSYS,Inc.Proprietary 2004 ANSYS,Inc.ContentsWorkbench Electroma

5、gneticsWorkbench Emag RoadmapDesign ModelerEnclosure SymmetryWinding bodiesWinding ToolSimulationANSYS,Inc.Proprietary 2004 ANSYS,Inc.Enclosure&Fill ToolsDesign Modeler(DM)includes two features to allow a user to create a volumetric“field”body associated with a solid model.Enclosure tool:Released at

6、 8.0.This tool is used to completely enclose the bodies of a model in a material typically required for an Emag analysis.Fill Tool:Released at 9.0(Beta at 8.1).Similar function to enclosure,but only fills interior cavities.Example of a hemispherical enclosure around an electromagnetANSYS,Inc.Proprie

7、tary 2004 ANSYS,Inc.The Fill feature create a new frozen body to fill the space occupied by a hole or cavity.Useful for interior cavity electromagnetic applications.Fill FeatureANSYS,Inc.Proprietary 2004 ANSYS,Inc.Enclosure SymmetryFeature:The Enclosure feature now supports symmetry models when the

8、enclosure shape is a box or a cylinder:Up to 3 three symmetry planes can be specified.Full or partial models can be included in the Enclosure.During the model transfer from DesignModeler to Simulation,the enclosure feature with symmetry planes forms two kinds of named selections:Open Domain Symmetry

9、 PlaneANSYS,Inc.Proprietary 2004 ANSYS,Inc.ContentsWorkbench ElectromagneticsWorkbench Emag RoadmapDesign ModelerEnclosure SymmetryWinding bodiesWinding ToolSimulationANSYS,Inc.Proprietary 2004 ANSYS,Inc.Winding Bodies&Tool Feature:Design Modeler(DM)includes two new tools to allow a user to easily c

10、reate current carrying coils:Winding Bodies:Used to represent wound coils for source excitation.The advantage of these bodies is that they are not 3D CAD objects,and hence simplify modeling/meshing of winding structures.Upon“attach to Simulation”,Winding Bodies are assigned as Conductor bodies.Windi

11、ng Tool:Used to create more complex coils for motor windings.The Winding Tool uses a Worksheet table format to drive the creation of multiply connected Winding Bodies.Or a user can read in a text file created by MSExcel.Benefits:Very easy to use,rapid creation of coil windings.ANSYS,Inc.Proprietary

12、2004 ANSYS,Inc.Winding BodiesA line body can be promoted to a winding body.Turns and cross-section(CS)dimensions are enteredWinding cross-section displayedTangent orientation vector(blue arrow)defines direction of current.ANSYS,Inc.Proprietary 2004 ANSYS,Inc.Winding ToolComplex coil windings may be

13、created using the Winding Tool:The Winding Tool inserts a“Winding#”into the model tree.A“Details”view is used for geometric placement.ANSYS,Inc.Proprietary 2004 ANSYS,Inc.Winding ToolEach Winding consists a number of related Winding Bodies.The related Winding Bodies are shown in the Parts/Bodies bra

14、nch:Winding BodiesANSYS,Inc.Proprietary 2004 ANSYS,Inc.Winding Table File Each Winding has a Winding Table File associated with it.The Winding Table File can be created directly in DM The Winding Table File can be exported to or imported from a text file.Each row corresponds to a created Winding Bod

15、y ANSYS,Inc.Proprietary 2004 ANSYS,Inc.Winding Table File The Winding Table File can be exported to or imported from a text file.ANSYS,Inc.Proprietary 2004 ANSYS,Inc.Winding Tool Example Winding 1 highlighted with rotor Complete DC Motor modelANSYS,Inc.Proprietary 2004 ANSYS,Inc.Winding Options Coil

16、s may have different radii between IN&OUT slots Multiple coils may be stacked in the same slotANSYS,Inc.Proprietary 2004 ANSYS,Inc.Winding Options-Skew A skew angle may be identified for the coil winding slots Many motor designs employ a skewed coil form.ANSYS,Inc.Proprietary 2004 ANSYS,Inc.Winding

17、Slot Clash DetectionWinding Tool automatically detects if the coil clashed with another part and warns the userANSYS,Inc.Proprietary 2004 ANSYS,Inc.ContentsWorkbench ElectromagneticsWorkbench Emag RoadmapDesign ModelerEnclosure SymmetryWinding bodiesWinding ToolSimulationTools LayoutWinding bodiesMa

18、terial PropertiesAir Gap Mesh SizingConductorsSolutionANSYS,Inc.Proprietary 2004 ANSYS,Inc.Simulation Tools LayoutElectromagnetic ToolbarSimulation Environment:Emag boundary conditionsConductor source excitationSolution ResultsVoltageCurrent DensityFieldForceTorqueInductance Flux linkageANSYS,Inc.Pr

19、oprietary 2004 ANSYS,Inc.Emag Simulation Wizard Interactively walks a user through required analysis steps.ANSYS,Inc.Proprietary 2004 ANSYS,Inc.Winding Body Transfer in SimulationWinding bodies are automatically assigned to conductor bodies.From the Winding Tool,each Phase Winding is assigned as a u

20、nique conductor.In this example,Conductor A consists of 2 winding bodies.ANSYS,Inc.Proprietary 2004 ANSYS,Inc.Material Property SupportBoth linear&nonlinear Emag materials are supported by Engineering Data:Soft materials(Steel,iron,etc.)Constant(isotropic)Laminated(orthotropic)Linear/nonlinear(singl

21、e B-H curve)Hard materials(NdFeB,SmCo,Alnico)LinearNonlinear Library of 35 BH curves provided 35 common materialsANSYS,Inc.Proprietary 2004 ANSYS,Inc.Materials BH Curve Library ANSYS,Inc.Proprietary 2004 ANSYS,Inc.Materials User BH Curves BH curves with up to 500 data points are supportedANSYS,Inc.P

22、roprietary 2004 ANSYS,Inc.Materials-Permanent MagnetsCoordinate systems are used to align the polarization axis of a magnet.Cartesian and Radial Magnetization are supported.ANSYS,Inc.Proprietary 2004 ANSYS,Inc.Air Gap Mesh SizingRequirement:.In an electromagnetics analysis models typically include n

23、arrow gaps between parts such as rotors and stators.It is important to have a refined mesh in these gaps.Feature:Air Gap Mesh sizing.As for other mesh controls,air gaps are assigned under Advanced Controls in the Mesh Detail.Benefits:Easy to use mesh refinement,resulting in more accurate analysis re

24、sults.ANSYS,Inc.Proprietary 2004 ANSYS,Inc.Air Gap Mesh SizingANSYS,Inc.Proprietary 2004 ANSYS,Inc.Conductor Objects identify conductors for excitation,inductance,and Post processing.Can be scoped to solid bodies(solid conductors),or Winding Bodies(wound coils)Excitation:Supports voltage and current

25、 loading for solid conductors.Current and phase angle are supported for Winding Bodies.Conductor ObjectsANSYS,Inc.Proprietary 2004 ANSYS,Inc.Solution ResultsANSYS,Inc.Proprietary 2004 ANSYS,Inc.Vector&Contour PlotsVector/Contour is selected in the Solution objects“Definition”or Results toolbarANSYS,

26、Inc.Proprietary 2004 ANSYS,Inc.Vector PlotsVector plot arrow scale,2D/3D arrows and arrow density can be defined allowing excellent visualization of the electromagnetic fieldANSYS,Inc.Proprietary 2004 ANSYS,Inc.Inductance&Flux LinkageSolution branch can insert Inductance&Flux linkage post processing

27、 calculations.Self and mutual inductance is computed.ANSYS,Inc.Proprietary 2004 ANSYS,Inc.Parameter SweepsThe Emag analysis can be fully parameterized so that a user can easily extract force or torque versus rotor position etc.ANSYS,Inc.Proprietary 2004 ANSYS,Inc.Parameter SweepsGraph of results automatically created.ANSYS,Inc.Proprietary 2004 ANSYS,Inc.ENDEND