| 颗粒浓度对声屏蔽装置吸声性能的影响 |
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| 引用本文： | 郭有松,宋扬,朴盛春. 颗粒浓度对声屏蔽装置吸声性能的影响[J]. 舰船科学技术, 2011, 33(2): 45-48. DOI: 10.3404/j.issn.1672-7649.2011.02.010 |
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| 作者姓名： | 郭有松 宋扬 朴盛春 |
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| 作者单位： | 1. 上海交通大学船舶海洋与建筑工程学院,上海,200240
2. 哈尔滨工程大学水声工程学院,黑龙江哈尔滨,150001 |
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| 摘 要： | 吸声一直是声学界研究的热点问题,声屏蔽装置是一种有效的水下噪声吸收装置。针对声屏蔽装置的声散射特性进行了分析,采用吸声颗粒悬浮层作为研究对象,对吸声悬浮层的衰减系数进行探讨,重点讨论了不同浓度的悬浮层对不同频率声波的吸声系数的影响。针对稀浓悬浮层,采用考虑颗粒之间影响和不考虑颗粒之间影响2种方式进行了理论分析与计算,分...
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| 关 键 词： | 声屏蔽装置 吸声 悬浮层 声波频率 颗粒浓度 吸声系数 |
Affection to sound absorption of sound shield device from density of elastic particles |
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| GUO You-song,SONG Yang,PIAO Sheng-chun. Affection to sound absorption of sound shield device from density of elastic particles[J]. Ship Science and Technology, 2011, 33(2): 45-48. DOI: 10.3404/j.issn.1672-7649.2011.02.010 |
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| Authors: | GUO You-song SONG Yang PIAO Sheng-chun |
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| Affiliation: | GUO You-song1,SONG Yang2,PIAO Sheng-chun2(1.School of Naval Architecture,Ocean and Civil Engineering,Shanghai Jiaotong University,Shanghai200240,China,2.School of Underwater Acoustic Engineering,Harbin Engineering University,Harbing150001,China) |
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| Abstract: | Sound absorption is a hot topic in the field of underwater acousitcs,and acousitic shielding device is an effective device to absorb underwater acoustic.In this paper,the elasitic suspension layer was main subject of our research,the character of sound scattering of this device was analysed,the coefficient of sound absorption of suspension layer had been discussed,the affection of sound absorption coefficient had been disscussed,from different density of particles to different frequency wave.Two different m... |
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| Keywords: | acousitic shielding device sound absorption suspension layer frequence of sound wave density of elastic particle coefficient of sound absorption |
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