Harmonic Response with Element Damping

[meshparts]

Hello,

I am wondering, what's the best way to do a harmonic response analysis with element damping (combin7).

My model is composed of shell elements. On some places I want to include some discrete damper elemets. The hole structure has many DOF's, so I'm thinking to do a modal superposition for computing the harmonic response. The logical steps should be:

1) Modal analysis with damping

2) Modal superposition by using the damped eigenmodes

So the question is, if both, element damping and other damping (dmprat, alphad, bethad, modal damping) will be respected.

Thank you in advance,
Alex

 

[Drej]

Yes, all will be respected given your method. In ANSYS, damping is the sum of all types of damping specified.

See:

Theory Reference > Chapter 15. Analysis Tools > 15.3. Damping Matrices.

See also:

Structural Guide> Chapter 5. Transient Dynamic Analysis> 5.10. Other Analysis Details > Table 5.5. Damping for Different Analysis Types


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