Exporting Parasolid from SolidWorks
From PHASTA Wiki
Save out your Model as a parasolid from SolidWorks. This will have the format <file_name>.x_t. Next, you'll want to change the extension from .x_t to .xmt_txt. To do this, run mv <file_name>.x_t <file_name>.xmt_txt
from your terminal. From here, you are ready to use simmodeler.