ANSYS-Workbench-90电磁学教程实例

1、ANSYS-Workbench-9ANSYS-Workbench-9ContentsWorkbench ElectromagneticsWorkbench Emag RoadmapDesign ModelerEnclosure SymmetryWinding BodiesWinding ToolSimulationContentsWorkbench ElectromagneWorkbench Emag Roadmap LF Emag capability will be exposed over several release cycles:3D Magnetostatics (9.0)3D

2、Current conduction (10.0)3D Electrostatics Circuit elementsTime transient & 2DWorkbench v9.0 is the first release with electromagnetic analysis capability. Support solid and stranded (wound) conductorsAutomated computations of force, torque, inductance, and coil flux linkage.Easily set up simulation

3、s 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) ANSYS Multiphysics license keys.Workbench Emag Roadmap LF EmagWorkbench Emag Markets Target markets: Solenoid actuatorsPermanent magne

4、t devicesSensorsRotating Electric machinesSynchronous machinesDC machinesPermanent magnet machinesWorkbench Emag Markets Target ContentsWorkbench ElectromagneticsWorkbench Emag RoadmapDesign ModelerEnclosure SymmetryWinding bodiesWinding ToolSimulationContentsWorkbench ElectromagneEnclosure & Fill T

5、oolsDesign Modeler (DM) includes two features to allow a user to create a volumetric “field” body associated with a solid model. Enclosure tool: Released at 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 a

6、t 9.0 (Beta at 8.1). Similar function to enclosure, but only fills interior cavities. Example of a hemispherical enclosure around an electromagnetEnclosure & Fill ToolsDesign MThe Fill feature create a new frozen body to fill the space occupied by a hole or cavity. Useful for interior cavity electro

7、magnetic applications. Fill FeatureThe Fill feature create a new Enclosure SymmetryFeature: The Enclosure feature now supports symmetry models when the 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. Dur

8、ing the model transfer from DesignModeler to Simulation, the enclosure feature with symmetry planes forms two kinds of named selections: Open Domain Symmetry PlaneEnclosure SymmetryFeature: ThContentsWorkbench ElectromagneticsWorkbench Emag RoadmapDesign ModelerEnclosure SymmetryWinding bodiesWindin

9、g ToolSimulationContentsWorkbench ElectromagneWinding Bodies & Tool Feature: Design Modeler (DM) includes two new tools to allow a user to easily create current carrying coils:Winding Bodies: Used to represent wound coils for source excitation. The advantage of these bodies is that they are not 3D C

10、AD objects, and hence simplify modeling/meshing of winding structures. Upon “attach to Simulation”, Winding Bodies are assigned as Conductor bodies.Winding Tool: Used to create more complex coils for motor windings. The Winding Tool uses a Worksheet table format to drive the creation of multiply con

11、nected Winding Bodies. Or a user can read in a text file created by MSExcel. Benefits: Very easy to use, rapid creation of coil windings. Winding Bodies & Tool Feature:Winding BodiesA line body can be promoted to a winding body. Turns and cross-section (CS) dimensions are enteredWinding cross-sectio

12、n displayedTangent orientation vector (blue arrow) defines direction of current. Winding BodiesA line body can Winding ToolComplex coil windings may be created using the Winding Tool: The Winding Tool inserts a “Winding#” into the model tree. A “Details” view is used for geometric placement.Winding

13、ToolComplex coil windiWinding ToolEach Winding consists a number of related Winding Bodies.The related Winding Bodies are shown in the Parts/Bodies branch:Winding BodiesWinding ToolEach Winding consiWinding Table File Each Winding has a Winding Table File associated with it. The Winding Table File c

14、an 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 Body Winding Table File Each WindiWinding Table File The Winding Table File can be exported to or imported from a text file. Winding Table File The WindiWind

15、ing Tool Example Winding 1 highlighted with rotor Complete DC Motor modelWinding Tool Example WindingWinding Options Coils may have different radii between IN & OUT slots Multiple coils may be stacked in the same slotWinding Options Coils may haveWinding Options - Skew A skew angle may be identified

16、 for the coil winding slots Many motor designs employ a skewed coil form.Winding Options - Skew A skew Winding Slot Clash DetectionWinding Tool automatically detects if the coil clashed with another part and warns the userWinding Slot Clash DetectionWiContentsWorkbench ElectromagneticsWorkbench Emag

17、 RoadmapDesign ModelerEnclosure SymmetryWinding bodiesWinding ToolSimulationTools LayoutWinding bodiesMaterial PropertiesAir Gap Mesh SizingConductorsSolutionContentsWorkbench ElectromagneSimulation Tools LayoutElectromagnetic ToolbarSimulation Environment:Emag boundary conditionsConductor source ex

18、citationSolution ResultsVoltageCurrent DensityFieldForceTorqueInductance Flux linkageSimulation Tools LayoutElectroEmag Simulation Wizard Interactively walks a user through required analysis steps.Emag Simulation Wizard InteracWinding Body Transfer in SimulationWinding bodies are automatically assig

19、ned to conductor bodies. From the Winding Tool, each Phase Winding is assigned as a unique conductor.In this example, Conductor A consists of 2 winding bodies. Winding Body Transfer in SimulMaterial Property SupportBoth linear & nonlinear Emag materials are supported by Engineering Data: Soft materi

20、als (Steel, iron, etc.)Constant (isotropic)Laminated (orthotropic)Linear/nonlinear (single B-H curve) Hard materials (NdFeB, SmCo, Alnico)LinearNonlinear Library of 35 BH curves provided 35 common materialsMaterial Property SupportBoth Materials BH Curve Library Materials BH Curve Library Materials

21、User BH Curves BH curves with up to 500 data points are supportedMaterials User BH Curves BH Materials - Permanent MagnetsCoordinate systems are used to align the polarization axis of a magnet. Cartesian and Radial Magnetization are supported.Materials - Permanent MagnetsCAir Gap Mesh SizingRequirem

22、ent: . In an electromagnetics analysis models typically include narrow 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. Bene

23、fits: Easy to use mesh refinement, resulting in more accurate analysis results.Air Gap Mesh SizingRequirementAir Gap Mesh SizingAir Gap Mesh SizingConductor 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 loading for solid conductors. Current and phase angle are supported for Winding Bodies.Conductor ObjectsConductor Objects identify co