Volume 35 Issue 5
May  2009
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Ma Yanhong, Hong Jie, Li Haoyu, et al. Theoretical analysis on sound absorption characteristics of metal rubber[J]. Journal of Beijing University of Aeronautics and Astronautics, 2009, 35(5): 653-656. (in Chinese)
Citation: Ma Yanhong, Hong Jie, Li Haoyu, et al. Theoretical analysis on sound absorption characteristics of metal rubber[J]. Journal of Beijing University of Aeronautics and Astronautics, 2009, 35(5): 653-656. (in Chinese)

Theoretical analysis on sound absorption characteristics of metal rubber

  • Received Date: 28 Nov 2008
  • Publish Date: 31 May 2009
  • The theoretical research on sound absorption characteristic of metal rubber (MR) was performed. On the basis of Rayleigh model and according to the sound propagation theory in pipe and the principle of Helmholtz, the acoustic model of MR was established, and formula of absorption coefficient was derived. With the acoustic impedance pipe, the experiments for noise reduction characteristic of MR with different structural parameters were carried. The results of the test show the accuracy of this acoustic model. It provides theoretical support for the further engineering application of MR in the field of noise reduction.

     

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