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FSUM in Response Spectrum & Random Vibration Analyses

- March 23, 2022 at 9:51 pm
  
  D_Mech_E
  Subscriber
  
  Hi Everyone,
  I'm attempting to gather nodal forces off MPC184 elements using the FSUM command for Response Spectrum and Random Vibration analyses. I'm using APDL snippets that are identical to those I've used before, but while using ANSYS 2022 R1 (student), I am continually getting the error:
  "The .MODE file does not exist for the calculation of the sum of the nodal forces. The FSUM command is ignored."
  Has anyone encountered this error? I've set ALL of my relevant analysis settings to "Yes" to make sure I'm not losing any files along the way.
  Thanks in advance!
- March 24, 2022 at 2:04 pm
  
  Ashish Khemka
  Forum Moderator
  
  Please see if the following links help:
  
  Response Spectrum Analysis-
  
  How to retrieve Joint Force during Response Spectrum Analysis in ANSYS Workbench Mechanical - YouTube
  
  APDL Commands in MECH After Response Spectrum Analysis | SimuTech (simutechgroup.com)
  
  Random Vibration Analysis:
  
  Retrieving Accurate PSD Reaction Forces in ANSYS Mechanical - PADT (padtinc.com)
  
  Regards Ashish Khemka

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