Paper Title:
Acoustic Analysis Using Finite Element Method Considering Effects of Damping Caused by Air Viscosity in Audio Equipment
  Abstract

The acoustic pathway in the enclosure of small headphones is very narrow. Therefore, the speed of sound propagation and the phase change because of the air viscosity. We have developed a new finite element method that considers the effects of damping due to air viscosity in the sound pathway. The new finite element method is obtained by improving the finite element method proposed by Yamaguchi for porous sound-absorbing materials. Moreover, we have attempted to obtain a numerical calculation of damping due to air viscosity by using the proposed finite element method.

  Info
Periodical
Edited by
Yusaku Fuji and Koichi Maru
Pages
282-286
DOI
10.4028/www.scientific.net/AMM.36.282
Citation
M. Sasajima, T. Yamaguchi, A. Hara, "Acoustic Analysis Using Finite Element Method Considering Effects of Damping Caused by Air Viscosity in Audio Equipment", Applied Mechanics and Materials, Vol. 36, pp. 282-286, 2010
Online since
October 2010
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