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I build a mesh in hypermesh (nastran library) and i need to perform a modal analysis i used nastran solver but it didn't generate an .op2 file. No error message is displayed  and i followed all the procedures.Moreover  the op2 file is generated only for few seconds after it disappear. is that any solution of that ? in attach there are my nastran file and the report 

nastranfile.bdf

nastranfile.log

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Hi @francesco aloschi

 

Not sure if an output request has to be requested to get .op2 file for Nastran solver to write the results. If yes, please let me know the card details and I can check in HM regarding the same.

 

If no, I would suggest you check with Nastran support. 

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OptiStruct generates result file (h3d) (well I have to delete few elements as they are not cooperating with the analysis)

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