Hi,
How can i assign equal damping ratios in different modes?
Assign equal damping in different modes
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vahidbarzegar
- Posts: 35
- Joined: Sun Feb 15, 2015 11:17 pm
- Location: sharif university of technology
Re: Assign equal damping in different modes
after the eigen $N command issue:
modalDamping $ratio1 $ratio2 .. $ratioN
and you will get $ratio damping in each mode. as a suggestion(similar to PERFORM-3d suggestion) you might want to also specify some rayleigh tangent proportional damping for the modes not covered.
modalDamping $ratio1 $ratio2 .. $ratioN
and you will get $ratio damping in each mode. as a suggestion(similar to PERFORM-3d suggestion) you might want to also specify some rayleigh tangent proportional damping for the modes not covered.