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OS-0010: Running OptiStruct from HyperMesh

OS-0010: Running OptiStruct from HyperMesh

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OS-0010: Running OptiStruct from HyperMesh

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This tutorial demonstrates how to launch an OptiStruct job from within HyperMesh. A HyperMesh database containing a fully defined OptiStruct finite element model is retrieved and an OptiStruct job is launched from the OptiStruct panel in HyperMesh.

Exercise

Step 1:  Load the User Profile

1.Launch HyperMesh. The User Profiles dialog appears upon start-up by default.
2.If the User Profiles dialog is not visible, select Preferences from the toolbar and choose User Profiles.
3.Under Application:, select the OptiStruct radio button.
4.Click OK.

This loads the appropriate user profile. It includes the appropriate template, macro menu, and import reader. It simplifies the menu systems to give access to only the functionality of HyperMesh that is necessary.

Step 2:  Retrieve the HyperMesh database

1.Click File > Open. An Open file browser window opens.
2.Select the plate.hm file you saved to your working directory from the optistruct.zip file. Refer to Accessing the Model Files.
3.Click Open. The plate.hm database is loaded into the current HyperMesh session, replacing any existing data.

Step 3:  Launch the OptiStruct job

1.Choose the Analysis page and select the OptiStruct panel.

You can also choose OptiStruct from the Applications menu on the toolbar.

2.Click save as. A Save file browser window opens.
3.Select the directory where you would like to write the model file and enter the file name, plate.fem, in the File name: field. For OptiStruct input decks .fem is the suggested extension.
4.Click Save.

The name and location of the plate.fem file displays in the input file: field.

5.Set the memory toggle, located in the center of the panel, to memory default.
6.Set the run options toggle, located on the left side of the panel, to analysis.
7.Set the export options: toggle, underneath the run options switch, to all.
8.Click OptiStruct. This exports the input file and launches the job.

If the job is successful, new results files can be seen in the directory where the model file was written. The plate.out file is a good place to look for error messages that will help to debug the input deck if any errors are present.

The default files written to your directory are:

plate.html

HTML report of the analysis, giving a summary of the problem formulation and the analysis results.

plate.out

ASCII output file containing specific information on the file set up, the set up of your optimization problem, estimate for the amount of RAM and disk space required for the run, information for each optimization iteration, and compute time information. Review this file for warnings and errors.

plate.res

HyperMesh binary results file.

plate.stat

Summary of analysis process, providing CPU information for each step during analysis process.

plate.h3d

HyperView binary result file.

Step 4:  Post-process the OptiStruct job

While still in HyperMesh, launch HyperView after the job has finished from the OptiStruct panel by clicking HyperView. HyperView opens and automatically loads the H3D file from the OptiStruct job for post-processing.