超空泡航行体空化噪声特性仿真分析
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- 英文论文题名：Characteristics simulation of supercavitation vehicle bubble noise
- 论文作者：张风珍 ; 李桂娟 ; 王纪会 ; 马福强
- 英文论文作者：ZHANG Feng-zhen ; LI Gui-juan ; WANG Ji-hui ; MA Fu-qiang ; Science and Technology on Underwater Test and Control Laboratory
- 年：2016
- 作者机构：水下测控技术重点实验室;
- 论文关键词：超空泡航行体 ; 空化噪声特性 ; 仿真分析
- 英文论文关键词：supercavitation vehicle ; cavitation noise characteristics ; simulative analysis
- 会议召开时间：2016-10-25
- 会议录名称：2016年中国造船工程学会水中目标特性学组学术交流会论文集
- 语种：中文
- 分类号：U661.44
- 学会代码：SXJS
- 会议名称：2016年中国造船工程学会水中目标特性学组学术交流会
- 会议地点：中国辽宁大连
- 主办单位：中国船舶重工集团公司第七六0研究所水中测控技术重点实验室
- 学会名称：《声学技术》编辑部
- 页数：6
- 文件大小：629k
- 原文格式：D
- 会议级别：全国
摘要
研究和掌握水下超空泡航行体的辐射噪声特性,对于实现其水下声自导、探测、隐身等具有重要意义。本文介绍了超空泡航行体的空化形成机理,指出其空化噪声主要来源是空泡尾部闭合区空泡破碎后形成的小空泡群的溃灭。有针对性的建立了单空泡崩溃辐射噪声模型,仿真和分析了不同空泡半径、崩溃反弹指数、所处环境等参数条件下的单空泡空化噪声波形和频谱特性,并结合特定的空泡群半径分布特点,进一步仿真和分析了空泡群崩溃辐射噪声特性。仿真结果显示,超空泡航行体空化噪声是一种中频较强、低频和高频逐渐变弱的"钟形"频谱的宽带辐射噪声。
The noise characteristics study of the underwater supercavitation vehicle has important significance to its underwater acoustic guiding, detecting, stealthing, etc. The cavitation theory and formation mechanism are introduced in the paper. It is point out that the collapse of the small bubbles group which come from the breakdown of the supercavitation tail is the main source of the cavitation noise. The noise model of the single bubble collapse is established, and the cavitation noise waveform and spectrum of the single bubble are simulated and analyzed under various conditions. Moreover, the bubble group noise characteristics is simulated and analyzed for a special bubbles radius distribution. The results show that the cavitation noise of the supercavitation vehicle is a kind of wideband noise including strong mid-frequency components and gradually weaken low-frequency and high-frequency components.
The noise characteristics study of the underwater supercavitation vehicle has important significance to its underwater acoustic guiding, detecting, stealthing, etc. The cavitation theory and formation mechanism are introduced in the paper. It is point out that the collapse of the small bubbles group which come from the breakdown of the supercavitation tail is the main source of the cavitation noise. The noise model of the single bubble collapse is established, and the cavitation noise waveform and spectrum of the single bubble are simulated and analyzed under various conditions. Moreover, the bubble group noise characteristics is simulated and analyzed for a special bubbles radius distribution. The results show that the cavitation noise of the supercavitation vehicle is a kind of wideband noise including strong mid-frequency components and gradually weaken low-frequency and high-frequency components.
引文
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[3]SAVCHENKO Y N.Control of supercavitation flow and stability of supercavitating motion of bodies[C].VKI Special Course on Supercavitating Flows.Brussels:RT O-AVT and VKI,2001:313-341.
[4]VASIN A D.The principle of independence of the cavity sections expansion(Logvinovich principle)as the basis for investigation on cavitation flows[C].VKI Special Course on Supercavitating Flows.Brussels:RTO-AVT and VKI,2001:105-131.
[5]SEMENENKO V N.Dynamic processes of supercavitation and computer simulation[C].VKI Special Course on Supercavitating Flows.Brussels:RTO-AVT and VKI,2001:239-268.
[6]戚定满,鲁传敬,何友声.空化噪声谱特性研究[J].振动与冲击,1999,18(3):32-37.QI Dingman,LU Chuanjing,HE Yousheng.An investigation on the spectra of bubble noise[J].Journal of Vibration and Shock,1999,18(3):32-37.
[7]陶笃纯.螺旋桨空化噪声谱[J].声学学报,1982;7(6):344-352.TAO Duchun.Spectrum of propeller cavitation noise[J].Acta Acustica,1982,7(6):344-352.
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