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Ansys Learning Forum Forums Discuss Simulation General Mechanical Creation of a MATRIX27 element, but no effect on the result Reply To: Creation of a MATRIX27 element, but no effect on the result

dlooman
Ansys Employee

It seems pretty clear you can't use matrix27 to input a non-symmetric non-positive definite matrix.  My guess is the solver will stop or error out if you do.  I'm pretty familiar with rotordynamic analysis and I haven't ever encountered a need to do this.  What physics are you modeling that are so unique?