Investigation on the Sound Absorption Properties of MPA/MR


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This paper introduces a sound absorption structure named as MPA/MR which is a combination of the MPA and Metal Rubber (MR) material. On the basis of Rayleigh model and sound propagation theory in pipe, according to the acoustoelectric analogy method, the theoretical acoustic model of MPA/MR is established, and the formula of absorption coefficient is derived. The multi-function standing wave tube with two microphones was used to obtain acoustic characteristics of MPA/MR experimentally, and the effects of the parameters were analyzed as well. The investigation indicates that MPA/MR can be applied with a broad range of application prospects.



Advanced Materials Research (Volumes 79-82)

Edited by:

Yansheng Yin and Xin Wang






Y. H. Ma et al., "Investigation on the Sound Absorption Properties of MPA/MR", Advanced Materials Research, Vols. 79-82, pp. 2147-2150, 2009

Online since:

August 2009




[1] Huang Qibai. Control of engineering noise[M]. Wuhan: Huazhong University of Science and Technology Press, 1999(in Chinese).

[2] Li Haitao, Zhu Xi, Shi Yong, Dong Peng. The research progress of multi-perforated noise reduction material[J]. Journal of Materials Science and Engineering, 2004, 22(6): 934-939(in Chinese).

[3] Ma Jianmin, Cui Zhe, Lv Jinglin. Experiment research on sound absorption characteristics of metal fiber materials[J]. Mechanical Science and Technology, 2000, 19(3): 449-451(in Chinese).

[4] Ma Yanhong, Wang Hong, Li Haoyu, Hong Jie. Study on Metal Rubber Material's Characteristics of Damping and Sound Absorption. Proceedings of ASME TURBO EXPO 2008, Berlin, Germany, GT2008-50961.

DOI: 10.1115/gt2008-50961

[5] Ma Yanhong, Hong Jie, 2005, Theoretical and experimental investigation of a new-style adaptive squeeze flim damper, Ph.D. thesis, Dept of Propulsion, Beijing University of Aeronautics and Astronautics.

[6] Ma Yanhong, Hong Jie, Li Haoyu, Li Yifeng. Theoretical analysis on sound absorption characteristics of metal rubber[J]. 2009,35(5):653-656.

[7] Ma Dayou. Modern basic acoustic theory[M]. Beijing: Science Press, 2004(in Chinese).

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