NASTRAN温度场分析例子.pdf

APPENDIX A Transient Thermal Analysis of a Cooling fin Objectives: Create a new database. Create the surface. Assign the thermal loads Submit the model for analysis MSC.Nastran 104 Exercise Workbook A-1 A-2 MSC.Nastran 104 Exercise Workbook APPENDIX A Transient Thermal Analysis of a Cooling Fin Suggested Exercise Steps: Create a new database and name it fin.db. Create a surface model of the cooling fin Generate the finite elements using mesh seeds Define material and element properties. Apply the convection conditions to the model. Submit the model to MSC.Nastran for analysis. Review results. MSC.Nastran 104 Exercise Workbook A-3 A-4 MSC.Nastran 104 Exercise Workbook APPENDIX A Transient Thermal Analysis of a Cooling Fin Exercise Procedure: 1. Open a new database called fin.db. File/New... New Database Name fin OK In the New Model Preferences form set the following: New Model Preference Tolerance Default Analysis Code: MSC/NASTRAN Analysis Type: Thermal OK Whenever possible click Auto Execute (turn off). 2. Create the surfaces of the cooling fin Geometry Action: Create Object: Surface Method: XYZ Referenc