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Absorption coefficients

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Zeck

Zeck

Mechanical
Jan 2, 2014
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Hello,

I want to perform harmonic analysis of car interior. Could anybody advice me how to write frequency dependant absorption coefficients in Patran?
Thanks for help.
 
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Not very familiar with this but I remember seeing a Hybrid Damping for this kind of application. Check Hybrid Damping in Nastran Quick Reference and Dynamic Analysis User's Guide, that should cover you. Because I know what I know doesn't: transient modal frequency

Spaceship!!


Aerospace Engineer, M.Sc. / Aircraft Stress Engineer with 7 years of experience
(United States)
 
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