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| Sound absorption of a microperforated panel backed by an L-type division cavity |
| GAI Xiaoling1, LI Xianhui1, XING Tuo1, ZHANG Bin1, CAI Zenong1, WANG Fang1, HAN Yu2 |
1.Beijing Key Laboratory of Environment Noise and Vibration, Beijing MunicipalInstitute of Labor Protection, Beijing 100054, China;
2.Global Energy Interconnection Research Institute, Beijing 102211, China |
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Abstract To improve the sound absorption ability of a single-layer microperforated panel (MPP), an MPP backed by an L-type division cavity was designed.Based on the MPP theory and electro-acoustical equivalent circuit principle, the sound absorption model of a microperforated panel backed by a two-cavity L-type division cavity was built.Simulation and experiment results show that that an MPP with a designed cavity structure has better sound absorption performance and a broader absorption bandwidth than an MPP with a single-cavity structure.This structure is extended to N-cavity segmentation.The experimental results are in agreement with the numerical results.
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Received: 09 January 2017
Published: 15 August 2018
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[1] 马大猷．微穿孔板结构的设计[J]．声学学报，1988，13(3):174—180．
D. Y. Maa， Design of microperforated panel constructions[J]. ACTC Acustica， 1988，13(3):174—180．
[2] 马大猷．微穿孔板吸声结构的理论和设计[J]．中国科学，1975,1：38—50．
D. Y. Maa， Theory and design of microperforated panel constructions[J. Science in China， 1975，1：38—50．
[3] D. Y. Maa, Potential of microperforated panel absorber[J]. J. Acoust. Soc. Am., 1998, 104: 2861-2866.
[4] T. Dupnt, G. Pavic, B. Laulagnet, Acoustic properties of lightweight micro-perforated plate system[J]. Acta Acustical Acustica, 2003, 89: 201-212.
[5] 马大猷，微穿孔板吸声体的准确理论和设计[J].声学学报，1997, 22(5)386-393.
D．Y．Ma，General theory and design of microperforated panel absorbers [J]. Actc Acustica, 1997, 22(5): 386-393.
[6] 马大猷，组合微穿孔板吸声结构[J].噪声与振动控制，1990，3: 3-9.
D. Y. Ma, The combine microperforated panel sound absorbing construction [J]. Noise and Vibration Control, 1990(3):3-9.
[7] 毛东兴,王佐民．双层微穿孔结构扩散场吸声特性[J]．声学技术，1999，18(2)：61—65．
D. X. Mao, Z. M. Wang. Absorbing property of multilayer microperforated structure in diffuse field [J]. Technical Acoustics, 1999,18(2):61-65.
[8] K. Sakagami，M. Morimoto, W. Koike, A numerical study of double-leaf microperforated panel absorbers[J]. Apllied Acoustics, 2006, 67: 609-619.
[9] 张晓杰，赵晓丹，多层微穿孔板的优化设计[J].电声技术，2008，32(2): 70-74.
X. J. Zhang, X. D. Zhao, Multilayer micro perforated panel optimization design [J]. Audio Engineering, 2008,32(2):70-74.
[10] 卢伟健，张斌，李孝宽，变截面微穿孔板吸声特性研究[J].噪声与振动控制，2009，2，147-150.
W. J. Lu, B. Zhang, X. K. Li, Study on acoustic characteristic of micro-perforated panel with variable cross section[J]. Noise and Vibration Control, 2009(2):147-150.
[11] R. T. Randeberg,Perforated Panel A bsorbers with Viscous Energy Dissipation Enhanced by Orifice Design[D]. Norwegian University of Science and Technology, 2009.
[12] 何立燕，扈西枝，陈挺，孔截面变化对厚微穿孔板吸声性能的影响[J].噪声与振动控制，2011，1，141-144
L. Y. He, X. Z. Hu, T. Chen, The influence of variable section of orifice on sound absorption characteristics of thick microperforated panel [J]. Noise and Vibration Control, 2011(1):141-144.
[13] Y. J. Qian, D. Y. Kong, S. M. Liu, S. M. Sun, Z. Zhao, Investigation on micro-perforated panel absorber with ultra-micro perforations[J]. Apllied Acoustics, 2013, 74,931-935.
[14] 吕亚东，魏文，管束式穿孔板共振吸声结构[P].中国专利：00100641．X，2000．
Y. D. Lv, W. Wei, Tube bundle microperforated panel resonance sound absorption structure [P]. Chinese patent: 00100641．X，2000．
[15] 李唐，不等腔微穿孔板组合吸声结构的吸声特性初探[D]，太原理工大学，2008,65-66.
T. Li, Rudimentary Researches on the Acoustic Characteristics of microperforated panel absorberts with alterable air-cavity [D], Taiyuan University of Technology, 2008,65-66.
[16] C. Q. Wang, L. X. Hung. On the acoustic properties of parallel arrangement of multiple microperforated panel absorbers with different cavity depths. J. Acoust. Soc. Am. 2011, 130(1),208-218.
[17] X. l. Gai, X. H. Li, B. Zhang, T. Xing, J. J. Zhao, Z. H. Ma, Experimental study on sound absorption performance of microperforated panel with membrane cell, App. Acoust, 2016, 110,241-247
[18] X. l. Gai, T. Xing, X. H. Li, B. Zhang, W. J. Wang, Sound absorption of microperforated panel mounted with Helmholtz resonators, Applied Acoustics 114(2016)260-265
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