modal damping

[marouaha]

Hi,
how can i using freqyency response analysis retreive the modal damping value?
thx

 

[bisav]

from the graph result.
If you already have a damping coefficient you can give that input for the frequency response analysis under subcase parameters.

Stress Engineer
bibinncb@gmail.com

 

[marouaha]

thx, i want to determine the modal damping values from a frequency responce analysis or a transient analysis.

 

[bisav]

You can create a graph result. From the graph you can find the damping.

I think this link may be helpful.

http://www.bksv.com/doc/bo0428.pdf

Stress Engineer
bibinncb@gmail.com