Ansys Learning Forum Forums Discuss Simulation LS Dyna How to perform two step dynamic analysis in Ansys Mechanical Reply To: How to perform two step dynamic analysis in Ansys Mechanical

peteroznewman
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The last model I attached, Transient 2Hz made it 83% of the way to the end of the simulation before an element started turning inside-out. One advantage of the 3D Shell model is elements won't start turning inside-out.
Here is the input base motion:
Here is the output motion of the top mass:
Plotting these on the same chart looks like this:
It doesn't look like the top mass is being isolated.