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Ansys Learning Forum Forums Discuss Simulation General Mechanical [modal analysis] How do I calculate natural frequency with rotational stiffness Reply To: [modal analysis] How do I calculate natural frequency with rotational stiffness

dlooman
Ansys Employee

The elastic supports you have defined will produce a lot of rotational stiffness about the Y axis already.  But, if you want to specify a rotational stiffness you could scope a torsional spring to the cylindrical surface at the edge of the hole.  You might need to turn on beta features for the torsional spring option to be displayed.Â