| 水中气泡幕对噪声的屏蔽效果研究 |
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| 引用本文： | 王虹斌,王芝秋,张洪雨,张文平.水中气泡幕对噪声的屏蔽效果研究[J].中国造船,2005,46(1):44-49. |
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| 作者姓名： | 王虹斌 王芝秋 张洪雨 张文平 |
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| 作者单位： | 哈尔滨工程大学动力与核能工程学院,黑龙江,哈尔滨,150001 |
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| 摘 要： | 本文基于水中气泡幕对宽频带噪声有良好衰减和屏蔽作用的基本原理,阐述了水池船模气泡幕降噪实验所取得的一些研究成果,其中包括喷气管布置方式、喷孔直径、喷气量等不同时的降噪量对比、喷气环截面形状与阻力的关系等.研究表明,喷气管分散布置方式时噪声的屏蔽效果较好;梯形截面喷气环的阻力明显比半圆形截面小;在实验所取喷孔直径及喷气量范围内,开孔直径和船模速度的改变亦对其屏蔽效果有较大影响.
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| 关 键 词： | 船舶、舰船工程 水池 船模 气泡幕 喷气环阻力 噪声屏蔽 |
| 文章编号： | 1000-4882(2005)01-0044-06 |
| 修稿时间： | 2004年9月8日 |
Experimental Study on Noise Suppressing of Underwater Bubble Screen |
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| WANG Hong-bin,WANG Zhi-qiu,ZHANG Hong-yu,ZHANG Wen-ping.Experimental Study on Noise Suppressing of Underwater Bubble Screen[J].Shipbuilding of China,2005,46(1):44-49. |
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| Authors: | WANG Hong-bin WANG Zhi-qiu ZHANG Hong-yu ZHANG Wen-ping |
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| Abstract: | The test of using bubble screen to shield noise is decribed in this paper. T he ship model test is performed in a pool, and the test items include the influe nce on noise reduction of gas nozzle installation manner, hole diameter, gas flu x, cross-section of emitter belt, resistance etc.. The test results show that t he disperse installation of gas nozzle can get a good effect of noise shielding, and the resistance of trapezium belt is much smaller than semicircle, but the h ole diameter and velocity of the ship model will affect noise reduction signific antly within the magnitude limits of the parameters selected in this paper. |
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| Keywords: | ship engineering pool shi p model bubble screen resistance of emitter belt noise shielding |
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