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  1. JamesDE2008

    No stress in PSD Analysis results

    Thanks for the advice from Transient1! I changed LUMPM,1 into LUMPM,0 and looked the results in loadstep 3 and then I received reasonable displacement and stress. Anyone can tell me, why should we look the results in loadstep 3, how is about result from loadstep 4 and 5? As I know, the stress...
  2. JamesDE2008

    No stress in PSD Analysis results

    Thanks for the advice! I realised that my FE model probably was built too stiff, because the joints (screws and rivets)in my model mostly were simplified through VGLUE or CPs. I did a test calculation with reduced structure and then I can get stress and displacement in final loadstep. So I...
  3. JamesDE2008

    No stress in PSD Analysis results

    I am performing a PSD analysis in Ansys9.0 for an electronic housing by defining a based excited PSD loading G^2/Hz in acceleration. The housing was fixed through four brackets to vibration desk, however I can not find any stress in loadstep 3 to 5. I can only find displacement in resultant 1.7...

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