Run the Model in MotionView's Flexbody Prep Wizard:
- Output the .fem file of an FEA model from HyperMesh to OptiStruct.
- Open MotionView.
- From the FlexTools menu, select Flexbody Prep.
- Select the FEA to H3D option.
- Select the Bulk Data file (.fem) that was output from OptiStruct.
- Select the interface nodes and modal information.
- Select the correct units.
- Perform a stress recovery.
- List the external node ideas with plus sign, "+", in between, such as 1 + 2 + 3 + 4.
- You may need to select MEGAGRAM for mass units, as this is often the mass unit used in FEA.
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Click Finish.
Flexbody Prep removes many custom parameters created in HyperMesh by default. If this does not allow files without the custom parameters, there are two options: the files can be manually edited and run through Flexbody Prep again, or run through E-Compute. For more information, see To run the model with E-Compute.