.nas or .bdf output file
Accepted solution
Hi @Anonymous
Those parameters should give the output that you want. However, you may be following this article (Exporting deformed shape from Nastran), and it is missing an important fact. The BDF file that is created includes the coordinates of the original, undeformed nodes and the coordinates of the deformed nodes. Depending on what software you use to display the BDF file, it may show the undeformed geometry or the deformed geometry!
- After running the analysis and it creates the BDF file, edit the BDF file using a text editor (such as Notepad).
- Delete the first set of GRID commands to remove the original nodes from the "beginning" of the file. (Note that the GRID commands may exist in multiple sets throughout the "beginning" of the file.) Do not delete the deformed GRID commands from the end of the file.
- Move the GRID commands from the end of the file that give the displaced coordinates to the beginning where the original GRID commands were located. The displaced coordinate GRID commands are identified with comments that look like this:
$ OUTPUT PRODUCED BY ADS NASTRAN VERSION 13.1.0.185 15:14 09/19/18
$
$ DEFORMED GEOMETRY OUTPUT FOR MODE = 1 SCALE FACTOR = 1.0
Let us know if that works.
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