Study on Impedance Calculation of Viscoelastic Material in Acoustic Tube

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Abstract:

The validated finite element method (FEM) was applied to the calculation of local impedance of viscoelastic sample in the acoustic tube. The acoustic impedance of viscoelastic material was calculated by three methods on the basis of numerical acoustic field computed by fluid-structure coupling method and the structure itself. The comparisons of calculation results illustrate that acoustic impedance is the inherent attribute of material.

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Periodical:

Advanced Materials Research (Volumes 652-654)

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1420-1426

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January 2013

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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