Influence of Thickness and Density of Nonwoven Sound-Absorbing Material on the Sound-Absorption Capability

Abstract:

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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 et al., "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:

$35.00

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