Does using imported NASTRAN damping matrices add much to the solve time?

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by Ricardo Alvarez on 8 Mar 2017
VAOne_2016.5_main.jpg
Import may take some extra time, but this should not be significant. Also, the fully populated damping matrix shouldn't make much difference in the solution time as we don’t use a sparse matrix for the modal matrix. As soon as you have hybrid or many different things that matrix gets fully populated anyway
 
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VA One
 
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Vibro-Acoustics