| 声激励下板柱组合结构水下近场声学特性研究 |
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| 引用本文： | 贾地,缪旭弘,庞福振.声激励下板柱组合结构水下近场声学特性研究[J].船舶工程,2011,33(Z2):150-156. |
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| 作者姓名： | 贾地 缪旭弘 庞福振 |
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| 作者单位： | 中国人民解放军92537部队;哈尔滨工程大学船舶工程学院; |
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| 摘 要： | 为研究船舶声纳平台区域的声学环境,基于数值方法研究了声波激励下板柱组合结构的水下近场声学特性,并讨论了声波频率及声波入射角度对板柱组合结构声场的影响.结果表明,板柱组合结构内部的声场分布较为复杂.声波频率较低时,板柱组合结构内部声场分布较为均匀;声波频率逐渐提高时,板柱组合结构内部将逐渐出现明显的声压加强区和减弱区;声波入射角度对声场加强区和减弱区的大小及出现位置也有较大影响.
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| 关 键 词： | 声纳平台 板柱组合结构 近场声学特性 声场分布 声波频率 入射角度 |
| 收稿时间： | 3/15/2011 7:40:53 AM |
| 修稿时间： | 4/17/2011 3:51:45 PM |
Near field acoustic characteristic of a compound structure with plates a cylindrical shell subjected to sound excitation |
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| JIA Di,MIAO Xu-hong and PANG Fu-zhen.Near field acoustic characteristic of a compound structure with plates a cylindrical shell subjected to sound excitation[J].Ship Engineering,2011,33(Z2):150-156. |
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| Authors: | JIA Di MIAO Xu-hong and PANG Fu-zhen |
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| Institution: | JIA Di1,MIAO Xu-hong1,PANG Fu-zhen2 Numerical Research on the Near-field Acoustic Characteristic of a Compound Structure with Plates & a Cylindrical |
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| Abstract: | In order to study the acoustic environment of a ship sonar platform,near-field acoustic characteristic of a compound structure with plates & a cylindrical shell(CSPCS) subjected to sound excitation is carried out based on numerical simulation.Influences of frequency and sound incident angle to the acoustic environment of CSPCS are studied.The result shows that the distribution of sound pressure field of CSPCS is complicated.Sound pressure field of CSPCS is more evenly distributed when sound wave frequency i... |
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| Keywords: | sonar platform a compound structure with plates & a cylindrical shell near-field acoustic characteristic sound field distribution sound wave frequency incident angle |
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