摘要
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.
作者
徐仲恩
李智忠
郭启超
XU Zhongen;LI Zhizhong;GUO Qichao(Navy Submarine Academy,Qingdao 266199,China)
出处
《舰船科学技术》
北大核心
2025年第7期75-79,共5页
Ship Science and Technology
关键词
圆柱壳
噪声源识别
振声传递矩阵
广义逆波束形成
cylindrical shell structure
noise source identification
vibration acoustic transfer matrix
generalized inverse beamforming
作者简介
徐仲恩(1993-),男,讲师,研究方向为水声工程。
