Paper Title:
Influence of Thickness and Density of Nonwoven Sound-Absorbing Material on the Sound-Absorption Capability
  Abstract

In this paper, the influence of thickness and density of nonwoven materials on the sound-absorption capability is studied through the serial experiments. The results show that the sound-absorption coefficient increases with material thickness increasing and this relationship is more distinct for low or mid frequencies than for high frequencies. When the material thickness is made constant, the sound-absorption coefficient increases with density increasing for low-mid frequencies, while the coefficient decreases with density for high frequencies. The conclusion is that the nonwoven materials with low density structure own better capacity in absorbing sound according to the experiment results.

  Info
Periodical
Advanced Materials Research (Volumes 197-198)
Edited by
Huaiying Zhou, Tianlong Gu, Daoguo Yang, Zhengyi Jiang, Jianmin Zeng
Pages
440-443
DOI
10.4028/www.scientific.net/AMR.197-198.440
Citation
W. Su, X. M. Qian, X. Y. Li, S. S. Liu, "Influence of Thickness and Density of Nonwoven Sound-Absorbing Material on the Sound-Absorption Capability", Advanced Materials Research, Vols. 197-198, pp. 440-443, 2011
Online since
February 2011
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Price
$32.00
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