| 国外舰船水动力噪声研究进展概述 |
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| 引用本文： | 俞孟萨,吴有生,庞业珍. 国外舰船水动力噪声研究进展概述[J]. 船舶力学, 2007, 11(1): 152-158 |
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| 作者姓名： | 俞孟萨 吴有生 庞业珍 |
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| 作者单位： | 中国船舶科学研究中心,江苏,无锡,214082;中国船舶科学研究中心,江苏,无锡,214082;中国船舶科学研究中心,江苏,无锡,214082 |
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| 摘 要： | 水动力噪声是潜艇和水下航行体较大航速时的主要噪声源,在低Ma数情况下,它主要是湍流边界层脉动压力激励结构振动产生的辐射噪声.文章综述湍流边界层脉动压力的频率-波数谱模型、湍流脉动压力测量方法以及弹性结构受湍流脉动压力激励的外部区域场计算的研究进展.
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| 关 键 词： | 湍流边界层脉动压力 弹性结构 声辐射 频率-波数谱 |
| 文章编号： | 1007-7294(2006)05-0152-07 |
| 修稿时间： | 2006-10-09 |
A review of progress for hydrodynamic noise of ships |
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| YU Meng-sa,WU You-sheng,PANG Ye-zhen. A review of progress for hydrodynamic noise of ships[J]. Journal of Ship Mechanics, 2007, 11(1): 152-158 |
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| Authors: | YU Meng-sa WU You-sheng PANG Ye-zhen |
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| Abstract: | Hydrodynamic noise is an important noise source of submarine and underwater vehicles when they are cruising at a high speed.Generally,when the Ma number is low,the hydrodynamic noise is mainly radiated by vibrating elastic structures excited by wall-pressure fluctuations beneath turbulent boundary layers(TBL).In this paper,the progress of researching the frequency-wave number spectrum models and the measurement methods of wall-pressure fluctuations beneath TBL were chiefly introduced.And the calculation of acoustic radiation of elastic structures excited by wall-pressure fluctuations beneath TBL is presented. |
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| Keywords: | pressure fluctuations beneath turbulent boundary lay elastic structures acoustic radiation frequency-wave number spectrum |
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