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?

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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
  
  FAQ
  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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Structural Dynamics

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?

Introducing Ansys Electronics Desktop on Ansys Cloud

How to Create a Reflector for a Center High-Mounted Stop Lamp (CHMSL)

Introducing the GEKO Turbulence Model in Ansys Fluent

Postprocessing on Ansys EnSight

New Post - - Structural Dynamics