Maxwell与Ansysworkbench热耦合PPT课件

1、Agenda One-way Load Transfer Overview Applications General Procedure HFSS Example Maxwell Example Conclusions第1页/共33页 2008 ANSYS, Inc. All rights reserved.2ANSYS, Inc. ProprietaryOne-way Load Transfer 第2页/共33页One-way Load Transfer One-way Data Exchange Volumetric or surface losses mapped to ANSYS mo

2、delVolumetric LossesBus Bar ModelAnsoft MaxwellTemperaturesANSYS Mechanical第3页/共33页Types of Coupled Problems Electromagnetic-Thermal Coupling Maxwell Volumetric losses HFSS Volumetric and/or surface losses Electromagnetic-Structural Interaction Maxwell Volumetric force density (under concept validat

3、ion work)第4页/共33页Applications for Coupling with Electromagnetics Electric Machines Motors, generators, solenoids, etc. Power Distribution Bus bars, power switching gear, transformers RF and Microwave Components High-power connectors, terminations, couplers, filters, circulators, etc. IC Thermal Dist

4、ribution Advanced Packaging, BGAs, Wire Bonds PCB Thermal Distribution and Dissipation Biomedical SAR, MRI Machines, RF Ablation第5页/共33页Limitations One-way Load Transfer Does not allow for temperature dependent electromagnetic material properties Not applicable for certain multiphysics problems Indu

5、ction heating第6页/共33页 2008 ANSYS, Inc. All rights reserved.7ANSYS, Inc. ProprietaryGeneral Procedure 第7页/共33页Ansoft/ANSYS Coupling General ProcedureCreate and solve theelectromagnetic application(HFSS / Maxwell)Export geometry from Ansoft to ANSYSCreate the correspondingANSYS thermal modelIncluding

6、the meshExport (to file A) the ANSYS finite element mesh centroid (X, Y, Z) coordinates for all heat source objects (volumes and surfaces)Read in file A and map the applicable electromagnetic heat source densities into outputfile BRead in File B, solve thermalproblem, post processthe resultsStartEnd

7、第8页/共33页 2008 ANSYS, Inc. All rights reserved.9ANSYS, Inc. ProprietaryHFSS Example 第9页/共33页HFSS One-way Coupling Example Cell Phone Antenna 350 mW at 900 MHz Objective to calculate temperature rise in brainVolumetric LossesElectric Field Ansoft HFSSTemperature ANSYS Mechanical第10页/共33页HFSS SolutionA

8、nalyze HFSS Setup第11页/共33页Export Geometry from HFSSAny geometry export option supported.Export geometry in desired format: Modeler / ExportFile name第12页/共33页Import Geometry into DesignModelerCan modify or defeature geometry as necessary in DM.第13页/共33页ANSYS Thermal MeshThermal mesh is independent of

9、 HFSS mesh.Thermal contact can be used. Any thermal element type can be used.第14页/共33页Export Mesh from ANSYSExport element centroid locations for each part for volumetric loss interpolation.第15页/共33页Import ANSYS Mesh into HFSS and Export LossesImport ANSYS element centroid locations into HFSS.Interp

10、olated volumetric losses to ANSYS mesh locations.第16页/共33页APDL to Import LossesCommand object to read volumetric losses from HFSS and convert into ANSYS BFE commands.Parameter to apply total integrated power from HFSS for load consistency.第17页/共33页Thermal Boundary ConditionsApply other thermal bound

11、ary conditions to ANSYS model.第18页/共33页Thermal SolutionRun and postprocess thermal solution.第19页/共33页 2008 ANSYS, Inc. All rights reserved.20ANSYS, Inc. ProprietaryMaxwell Example 第20页/共33页Maxwell One-way Coupling Example Solenoid Coil losses transferred to thermal modelVolumetric LossesMagnetic Fie

12、ld Ansoft MaxwellTemperatureANSYS Mechanical第21页/共33页Maxwell SolutionAnalyze Maxwell Design第22页/共33页Export Geometry from MaxwellAny geometry export option supported.File name第23页/共33页Import Geometry into DesignModelerCan modify or defeature geometry as necessary in DM.第24页/共33页ANSYS Thermal MeshTher

13、mal mesh is independent of Maxwell mesh.Thermal contact can be used. Any thermal element type can be used.第25页/共33页Export Mesh from ANSYSExport element centroid locations for each part for volumetric loss interpolation.第26页/共33页Import ANSYS Mesh into Maxwell and Export LossesImport ANSYS element cen

14、troid locations into Maxwell.Interpolated volumetric losses to ANSYS mesh locations.第27页/共33页APDL to Import LossesCommand object to read volumetric losses from Maxwell and convert into ANSYS BFE commands.Parameter to apply total integrated power from Maxwell for load consistency.第28页/共33页Thermal Bou

15、ndary ConditionsApply other thermal boundary conditions including radiation to ANSYS model.第29页/共33页Thermal SolutionRun and postprocess thermal solution.第30页/共33页 2008 ANSYS, Inc. All rights reserved.31ANSYS, Inc. ProprietaryConclusions 第31页/共33页Conclusions One-way load transfer is available now! Losses are mapped to a thermal model with ANSYS APDL m