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About damping in Solid mechanics
Posted 29.11.2014, 07:29 GMT-5 MEMS & Nanotechnology, MEMS & Piezoelectric Devices, Structural Mechanics 0 Replies
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Hi, I have a question about the damping in Solid mechanics module.
I want to simulate a piece of metal drive by Force=F0cos(wt); So I choose frequency domain and do it.
But at beginning I didn't set any damping. It means under linear elastic material node, I didn't add any sub-node. But still I can see the damping in spectrum figure. Why? Is it because computer gives a random damping as default value?
Secondly, I want to know if I want to add a right damping in my simulation system, which type of damping I need? Rayleigh or isotropic or anisotropic?
Is there any one can help me distinguish these 3 type of damping? Which type of damping should I use in my system?
Thank you.
Mingkang
Hello Wang Mingkang
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