| 分层吸声结构的声学设计与性能分析 |
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| 引用本文： | 石勇,朱锡,李永清,李海涛. 分层吸声结构的声学设计与性能分析[J]. 应用声学, 2007, 26(5): 300-304 |
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| 作者姓名： | 石勇 朱锡 李永清 李海涛 |
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| 作者单位： | 1. 海军工程大学船舶与海洋工程系,武汉,430033;海军驻渤船重工军代表室,辽宁葫芦岛,125004
2. 海军工程大学船舶与海洋工程系,武汉,430033 |
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| 摘 要： | 本文给出了声波在多层介质中的传播方程，通过数值计算，分析了各层参数对分层吸声结构声学性能的影响规律。用参数匹配方法，对多层吸声结构各层材料的参数进行设计。结果表明，通过合理分布各层材料，多层吸声结构可以在较宽频段上达到满意的吸声性能。
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| 关 键 词： | 吸声结构 分层 声学设计 |
| 修稿时间： | 2006-02-17 |
Acoustic design and analysis of multi-layered structure for sound absorbing |
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| SHI Yong,ZHU Xi,LI Yong-Qing and LI Hai-Tao. Acoustic design and analysis of multi-layered structure for sound absorbing[J]. Applied Acoustics(China), 2007, 26(5): 300-304 |
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| Authors: | SHI Yong ZHU Xi LI Yong-Qing LI Hai-Tao |
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| Affiliation: | Dept.of Naval Architecture & Ocean Eng.,Naval Univ.of Engineering,Wuhan 430033;Naval Representative Office Stationed at BoHai Ship Building Factory,Huludao 125004;Dept.of Naval Architecture & Ocean Eng.,Naval Univ.of Engineering,Wuhan 430033;Dept.of Naval Architecture & Ocean Eng.,Naval Univ.of Engineering,Wuhan 430033;Dept.of Naval Architecture & Ocean Eng.,Naval Univ.of Engineering,Wuhan 430033 |
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| Abstract: | Transmission equation of acoustic wave in layered media is given. By numerical calculation, the effects of acoustic parameters of each layer on the sound wave reflection and attenuation is analyzed. With the application of a parameter-match method, parameters of every layer can be chosen to meet the optimum acoustic performance. It shows that multiple layered structure can afford sufficiently satisfying level of sound absorbing in a cared frequency range. |
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| Keywords: | Sound absorbing structure Multiple layer Acoustic design |
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