Combined Method of Near Field Acoustic Holography and Focused Beamforming for Noise Source Identification in Enclosed Space
Combined Method of Near Field Acoustic Holography and Focused Beamforming for Noise Source Identification in Enclosed Space
复制标题
近场声全息与聚焦波束形成相结合的封闭空间噪声源识别方法
DOI：
10.20855/ijav.2017.22.3484
复制
发表时间：
2017
期刊：
影响因子：
--
通讯作者：
Zhu Zhong Rui
中科院分区：
文献类型：
--
作者：
Zhang Lan Yue;Wang Jia;Yang De Sen;Shi Jie;Shi Sheng Guo;Zhu Zhong Rui
随着对船舶车辆舒适性要求的提高，船舶舱室噪声的控制受到了高度重视。噪声源识别是噪声控制的前提。传统的噪声源识别方法主要应用于自由场中。在封闭空间中，由于声反射的影响，噪声源识别方法的性能会严重下降。研究了基于双圆柱基阵的封闭空间噪声源识别问题。利用声场分离技术消除了反射声的影响。提出了近场声全息与聚焦波束形成相结合的噪声源识别方法，用于识别高频和低频噪声源。通过仿真研究了所提方法的性能，并在潜艇舱室模型上进行了实验，验证了所提方法的可行性。研究结果表明，基于双圆柱基阵的声场分离技术可以消除反射声的影响，近场声全息与聚焦波束形成相结合的方法可以实现高、低频信号的高分辨率识别。
Noise control of vehicle cabins has been given high consideration owing to the increasing demands for comfort of ship vehicles. Noise source identification is the precondition of noise control. Conventional methods of noise source identification are mainly applied in free fields. The performance of noise source identification methods will be seriously decreased in enclosed space due to the effect of sound reflection. Noise source identification in enclosed space based on double cylindrical array is researched in this paper. The effect of reflection sound is removed by using the sound field separation technique. The combined method of near field acoustic holography and focused beamforming for noise source identification is proposed to identify noise sources having high and low frequencies. The performance of the proposed method is studied by simulation, and the experiment is carried out in the submarine cabin model to verify the feasibility of the proposed method. The researching results shows that the effect of reflection sound can be removed using sound field separation technique based on double cylindrical array, and the high-resolution identification for high and low frequency signals can be obtained using the combined method of near field acoustic holography and focused beamforming.
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DOI：
--
发表时间：
2003
期刊：
--
影响因子：
--
作者：
Chen Xinzhao
通讯作者：
Chen Xinzhao
影响因子：
2.4
作者：
VERONESI, WA;MAYNARD, JD
通讯作者：
MAYNARD, JD
DOI：
10.1121/1.403501
发表时间：
1992-04
期刊：
--
影响因子：
--
作者：
E. Williams
通讯作者：
E. Williams
DOI：
10.1121/1.3270392
发表时间：
2010-01
期刊：
The Journal of the Acoustical Society of America
影响因子：
--
作者：
M. Melon;C. Langrenne;P. Herzog;Alexandre Garcia
通讯作者：
M. Melon;C. Langrenne;P. Herzog;Alexandre Garcia
影响因子：
4.7
作者：
E. Williams
通讯作者：
E. Williams