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Structural Dynamics

Structural Dynamics

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  2. Structures - Structural Dynamics
  3. Why aren’t my nodal forces in equilbrium after a mode-sup transient analysis?

Why aren’t my nodal forces in equilbrium after a mode-sup transient analysis?

Tagged: 16.2, mechanical-apdl, structural-dynamics, structural-mechanics, Transient (Implicit)
    • June 5, 2023 at 7:04 am
      FAQFAQ
      Participant

      Prior to 14.0, the expansion of the mode-sup transient solution recovers only the static component of the nodal forces. The unbalanced nodal forces you see would be balanced by the inertia forces. At 14.0 MODOPT,,,,YES,,MSUPKey=YES is required to get the damping and inertia forces.

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