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  3. Random Vibration: The result data for SPSD is not contained in the result file

Random Vibration: The result data for SPSD is not contained in the result file

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    • October 3, 2024 at 4:00 pm
      AR
      Subscriber

      Hello,

      I have a model Static -> Modal -> Random vibration in Workbench. It is a large model, so I am expanding only the modes whose ratio of effective mass to total mass is greater than 1e-3 with the following code:
      mxpand,none
      SOLVE
      FINISH
      !
      /SOLU
      antype,modal,restart
      mxpand,all,,,,1e-3,,EFFM
      modseloption,,,,no,no,no
      SOLVE

      I have the "Store modal results" set to "For future Analysis". However, when finishing the PSD, I get the following error:
      The result data for spsd is not contained in the result file.

      I have used this same method with a harmonic and it worked fine.

      What could be happening? How can I fix it but keep the part where I select what I want to expand?

    • October 5, 2024 at 3:06 pm
      dlooman
      Ansys Employee

      You didn't request stresses in the modal.  It should have been mxpand,all,,,YES,1e-3,,EFFM

    • October 10, 2024 at 7:58 am
      AR
      Subscriber

      Thank you !

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