Structural Dynamics

Structural Dynamics

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  3. In a full transient, is D,,ACC really any better than applied displacements (which are known to produce sprurious results at the beginning of a load step)? Doesn’t the program just convert the accelerations to displacements?

In a full transient, is D,,ACC really any better than applied displacements (which are known to produce sprurious results at the beginning of a load step)? Doesn’t the program just convert the accelerations to displacements?

Tagged: 18.2, General, mechanical-apdl, structural-dynamics, structural-mechanics, Transient (Implicit)
    • June 5, 2023 at 7:04 am
      FAQFAQ
      Participant

      Yes, D,,ACC is better as it uses the Newmark assumptions directly to insert the appropriate displacement boundary condition into the solution so that accelerations remain smooth.

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