ANSYSWorkbench电磁学教程实例英文剖析PPT教学课件

1、ContentsWorkbench Electromagnetics Workbench Emag Roadmap Design Modeler Enclosure Symmetry Winding Bodies Winding Tool SimulationWorkbench Emag Roadmap LF Emag capability will be exposed over several release cycles: 3D Magnetostatics (9.0) 3D Current conduction (10.0) 3D Electrostatics Circuit elem

2、ents Time transient & 2D Workbench v9.0 is the first release with electromagnetic analysis capability. Support solid and stranded (wound) conductors Automated computations of force, torque, inductance, and coil flux linkage. Easily set up simulations to compute results as a function of current, stro

3、ke, or rotor angle. Workbench Emag capability is mapped to & accessed via: ANSYS Emag (stand alone or enabled task) ANSYS Multiphysics license keys.Workbench Emag Markets Target markets: Solenoid actuators Permanent magnet devices Sensors Rotating Electric machines Synchronous machines DC machines P

4、ermanent magnet machinesContentsWorkbench Electromagnetics Workbench Emag Roadmap Design Modeler Enclosure Symmetry Winding bodies Winding Tool SimulationEnclosure & Fill ToolsDesign Modeler (DM) includes two features to allow a user to create a volumetric “field” body associated with a solid model.

5、 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 at 9.0 (Beta at 8.1). Similar function to enclosure, but only fills interior cavities. Example of a hemispherical enclosure aroun

6、d an electromagnet 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 FeatureEnclosure SymmetryFeature: The Enclosure feature now supports symmetry models when the enclosure shape is a box or a cylin

7、der: 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 PlaneContentsWorkbench Electr

8、omagnetics Workbench Emag Roadmap Design Modeler Enclosure Symmetry Winding bodies Winding Tool SimulationWinding 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 excita

9、tion. 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. Winding Tool: Used to create more complex coils for motor windings. The Winding Tool uses

10、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. Winding BodiesA line body can be promoted to a winding body. Turns and cross-section (CS) dimensions

11、 are enteredWinding cross-section displayedTangent orientation vector (blue arrow) defines direction of current. 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.Windin

12、g ToolEach Winding consists a number of related Winding Bodies.The related Winding Bodies are shown in the Parts/Bodies branch:Winding BodiesWinding 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

13、 exported to or imported from a text file. Each row corresponds to a created Winding Body Winding Table File The Winding Table File can be exported to or imported from a text file. Winding Tool Example Winding 1 highlighted with rotor Complete DC Motor modelWinding Options Coils may have different r

14、adii between IN & OUT slots Multiple coils may be stacked in the same slotWinding Options - Skew A skew angle may be identified for the coil winding slots Many motor designs employ a skewed coil form.Winding Slot Clash DetectionWinding Tool automatically detects if the coil clashed with another part

15、 and warns the userContentsWorkbench Electromagnetics Workbench Emag Roadmap Design Modeler Enclosure Symmetry Winding bodies Winding Tool Simulation Tools Layout Winding bodies Material Properties Air Gap Mesh Sizing Conductors SolutionSimulation Tools LayoutElectromagnetic ToolbarSimulation Enviro

16、nment:Emag boundary conditionsConductor source excitationSolution ResultsVoltageCurrent DensityFieldForceTorqueInductance Flux linkageEmag Simulation Wizard Interactively walks a user through required analysis steps.Winding Body Transfer in SimulationWinding bodies are automatically assigned to cond

17、uctor bodies. From the Winding Tool, each Phase Winding is assigned as a unique conductor.In this example, Conductor A consists of 2 winding bodies. Material Property SupportBoth linear & nonlinear Emag materials are supported by Engineering Data: Soft materials (Steel, iron, etc.) Constant (isotrop

18、ic) Laminated (orthotropic) Linear/nonlinear (single B-H curve) Hard materials (NdFeB, SmCo, Alnico) Linear Nonlinear Library of 35 BH curves provided 35 common materialsMaterials BH Curve Library Materials User BH Curves BH curves with up to 500 data points are supportedMaterials - Permanent Magnet

19、sCoordinate systems are used to align the polarization axis of a magnet. Cartesian and Radial Magnetization are supported.Air Gap Mesh Sizing Requirement: . In an electromagnetics analysis models typically include narrow gaps between parts such as rotors and stators. It is important to have a refine

20、d 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 results.Air 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. Cur