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When we compare a liquid, highly viscous liquid, polymer...

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Question by Jayakumari
Submitted on 2/10/2004
Related FAQ: Acoustics FAQ
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When we compare a liquid, highly viscous liquid, polymer resin or gel with paste like consistency and an elastomeric solid, which one is more appropriate for vibration and sound attenuation applications. What is the effect of length of column or thickness of damping layer on attenuation

Answer by Jimmy Wong
Submitted on 3/19/2004
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First, you need to define whether it is a finite unit or infinite unit. Your boundary conditions will have major effects on your result.
As a rule of thumb, use 1.5 wavelength of the lowest frequency you are interested to attenuate as the effective thickness of the damping layer.


Answer by 888YDNDrpE
Submitted on 2/25/2006
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