为了解决水下圆柱壳结构噪声源识别方法中，基于点源格林函数传递矩阵广义逆波束形成方法（GFTM-GIB）识别分辨率低的问题，本文基于振声传递矩阵的广义逆波束形成方法（VATM-GIB），通过共型活塞辐射声场解析表达式，建立结构表面振动到辐射声场的振声传递矩阵，克服了传统点源球面扩展声传播模型的局限性，并利用VATM-GIB方法实现了对圆柱壳结构噪声源的识别。理论分析与仿真结果表明，VATM-GIB方法相较于GFTM-GIB方法，具有更高的空间分辨率，有效提高了圆柱壳结构声源的识别定位性能。
Aiming at the problem of low resolution of point source Green function transfer matrix generalized inverse Beamforming method (GFTM-GIB) in noise source identification methods for underwater cylindrical shell structures, this paper presents generalized inverse beamforming method (VATM-GIB) based on vibration transfer matrix. The vibration and sound transmission matrix from the surface of the structure to the radiated sound field is established, which overcomes the limitation of the traditional point source spherical extended sound propagation model, and realizes the identification of cylindrical shell structure noise source by VATM-GIB method. Theoretical analysis and simulation results show that VATM-GIB method has higher spatial resolution than GFTM-GIB method, and effectively improves the identification and location performance of cylindrical shell structure sound sources.
2025,47(7): 75-79 收稿日期：2024-5-31
DOI：10.3404/j.issn.1672-7649.2025.07.015
分类号：TB561
作者简介：徐仲恩(1993-),男,讲师,研究方向为水声工程
参考文献：
[1] HONG D W, JOO D S, LEE J Y, et al. Effects of the pole-slot combination on the PMSM of an integrated motor propulsor for an unmanned underwater vehicle considering its electric performance, noise and vibration[J]. International Journal of Applied Electromagnetics and Mechanics, 2016, 52(3-4).
[2] XIA P, MACGILLIVRAY I, YAN T, et al. Investigation of sound radiation from a water-loaded cylindrical enclosure due to airborne noise[C]// Acoustics, 2013.
[3] LEE J, SEO I. Radiation impedance computations of a square piston in a rigid infinite baffle[J]. Journal of Sound and Vibration, 1996, 198(3): 299-312.
[4] GREENSPON J E, SHERMAN C H. Mutual-radiation impedance and near field pressure for pistons on a cylinder[J]. Journal of the Acoustical Society of America, 1964, 36(1): 149-153.
[5] 胡世猛, 汤渭霖, 王斌, 等. 多源随机激励下多舱段圆柱壳辐射声功率(英文)[J]. 船舶力学, 2012(9): 1085-1098.
[6] 刘涛. 水中复杂壳体的声-振特性研究[D]. 上海: 上海交通大学, 2002.
[7] 石焕文, 肖静, 仇菲菲, 等. 有限长圆柱壳水中辐射声场的解析法与有限元/边界元研究[J]. 陕西师范大学学报(自然科学版), 2010(4): 40-45.
[8] 叶虹敏, 王强, 袁昌明, 等. 基于广义逆波束形成的扩展性噪声源定位误差影响因素仿真研究[J]. 声学技术, 2015, 34(4): 368-373.
[9] 黎术, 徐中明, 贺岩松, 等. 基于函数广义逆波束形成的声源识别[J]. 机械工程学报, 2016, (4): 1-6.
[10] 王斌, 汤渭霖, 范军. 一种辐射声场近似计算方法——单元辐射叠加法[J]. 声学学报, 2008(3): 226-230.
[11] 肖斌, 刘文帅, 高超, 等. 舰船中低频结构噪声源识别方法研究[J]. 哈尔滨工程大学学报, 2015, (12): 1596-1602.
[12] 徐仲恩, 杨刚, 李智忠, 等. 一种基于传递矩阵的矩形板结构噪声源识别方法[J]. 舰船科学技术, 2022, 44(17) : 29-32.
