Using RADIOSS Bulk Data on HyperMesh12

Altair Forum User

Hi,

I need to add a damping coefficient on my structural analysis. I must add the Rayleigh Damping model (where I define the alpha and beta coefficients).
I've searched on Internet and some people said to use the Radioss Bulk Data profile, but it is unavaliable on Hypermesh 12 because it is called Optistruct (I've read this in another forum). Then, I tried to use the Optistruct profile, but there is no 'Damping' or 'Damp Coefficient' on the control cards. What should I do? Is there any other profile on hypermesh where I can run a transient analysis with damping?
 

Altair Forum User

Hi jorgelms,

 

I don't have too much knowledge about your question,but just to help you,you may refer following titles in hyperworks help documents.

 

file:///C:/Program%20Files/Altair/12.0/help/hwsolvers/hwsolvers.htm?frequency_response_analysis.htm

file:///C:/Program%20Files/Altair/12.0/help/hwsolvers/hwsolvers.htm?transient_response_analysis.htm

file:///C:/Program%20Files/Altair/12.0/help/hwsolvers/hwsolvers.htm?param.htm

file:///C:/Program%20Files/Altair/12.0/help/hwsolvers/hwsolvers.htm?param_alpha1.htm

file:///C:/Program%20Files/Altair/12.0/help/hwsolvers/hwsolvers.htm?param_alpha2.htm

 

Hope it helps.

Regards.

Altair Forum User

Thank you! Now it works!

As I read those files, I found that alpha1 = alpha and alpha2=beta in the Rayleigh structural damping.