Maxwell與Ansysworkbench熱耦合PPT課件

1、Agenda One-way Load Transfer Overview Applications General Procedure HFSS Example Maxwell Example Conclusions第1頁/共33頁 2008 ANSYS, Inc. All rights reserved.2ANSYS, Inc. ProprietaryOne-way Load Transfer 第2頁/共33頁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頁/共33頁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頁/共33頁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頁/共33頁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頁/共33頁 2008 ANSYS, Inc. All rights reserved.7ANSYS, Inc. ProprietaryGeneral Procedure 第7頁/共33頁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頁/共33頁 2008 ANSYS, Inc. All rights reserved.9ANSYS, Inc. ProprietaryHFSS Example 第9頁/共33頁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頁/共33頁HFSS SolutionA

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

9、 HFSS mesh.Thermal contact can be used. Any thermal element type can be used.第14頁/共33頁Export Mesh from ANSYSExport element centroid locations for each part for volumetric loss interpolation.第15頁/共33頁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頁/共33頁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頁/共33頁Thermal Boundary ConditionsApply other thermal bound

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

12、ld Ansoft MaxwellTemperatureANSYS Mechanical第21頁/共33頁Maxwell SolutionAnalyze Maxwell Design第22頁/共33頁Export Geometry from MaxwellAny geometry export option supported.File name第23頁/共33頁Import Geometry into DesignModelerCan modify or defeature geometry as necessary in DM.第24頁/共33頁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頁/共33頁Export Mesh from ANSYSExport element centroid locations for each part for volumetric loss interpolation.第26頁/共33頁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頁/共33頁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頁/共33頁Thermal Bou

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