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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

August 15, 2021 at 1:58 am
peteroznewman
Subscriber
The TPU output had 5% damping at 5 Hz
Here is the same model, but with a Linear Material E = 41 MPa instead of a Hyperelastic Material.
Increased E to 90 MPa and now the flat part of the curve is about 1.22 N which is where the TPU was.
This requires about the same 0.125 kg mass, but when the Modal solution is run, the natural frequency is 11.6 Hz.