| 源分离方法在船舶中的运用 |
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| 引用本文： | 许锐,朱显明,柯兵,汪浩.源分离方法在船舶中的运用[J].中国舰船研究,2008,3(6). |
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| 作者姓名： | 许锐 朱显明 柯兵 汪浩 |
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| 作者单位： | 中国舰船研究设计中心,湖北,武汉,430064 |
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| 基金项目： | 海军专用技术预研项目
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| 摘 要： | 噪声源分析是船舶减振降噪的关键技术之一.利用相干和偏相干分析方法,对船体结构振动的特征频率进行分离,进而分析设备源对船体结构的能量贡献,达到了对设备噪声源进行排序的目的.实船实验结果表明,利用相干和偏相干方法进行船舶噪声源分离结果可靠.
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| 关 键 词： | 噪声源 相干 偏相干 特征频率 分离 |
Application of Noise Source Separations to Ships |
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| Xu Rui,Zhu Xian-ming,Ke Bing,Wang Hao.Application of Noise Source Separations to Ships[J].Chinese Journal of Ship Research,2008,3(6). |
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| Authors: | Xu Rui Zhu Xian-ming Ke Bing Wang Hao |
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| Institution: | Xu Rui Zhu Xian-ming Ke Bing Wang Hao China Ship Development , Design Center,Wuhan 430064,China |
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| Abstract: | Noise source analysis is one of the key techniques to the vibration and noise reduction in ships.Methods of coherence and partial coherence analyses are used in this paper,and the characteristic frequencies of the ship hull vibration are separated.Then the energy contribution of the equipment noise source is analyzed so that the sequence of equipment noise source is obtained.The experimental results show that methods of coherence and partial coherence analyses are reliable when applied to ships. |
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| Keywords: | noise source coherence partial coherence separation |
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