How can I apply an acceleration time history to the big mass when using the Big Mass Method in a mode-superposition transient?

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How can I apply an acceleration time history to the big mass when using the Big Mass Method in a mode-superposition transient?

How can I apply an acceleration time history to the big mass when using the Big Mass Method in a mode-superposition transient?

Tagged: 9, General, mapdl, Mechanical APDL (f. ANSYS), Modal/Harmonic Response, structural-dynamics, structural-mechanics

- March 17, 2023 at 9:00 am
  
  FAQ
  Participant
  
  Ordinarily the mass is excited by a force equal to the acceleration times the big mass, but a more convenient way is to apply the acceleration directly with the CMACEL command which can be used to apply an acceleration to an element component consisting of just the big mass.

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Structural Dynamics

How can I apply an acceleration time history to the big mass when using the Big Mass Method in a mode-superposition transient?

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