基于柱面近场声全息的水下航行器辐射声场重构  

Reconstruction of AUV Radiation Acoustic Fields Based on Cylindrical NAH

作　　者：万海波[1] 朱石坚[1] 楼京俊[1] 张若愚[2] 

机构地区：[1]海军工程大学动力工程学院,武汉430033 [2]哈尔滨工程大学水声工程学院,哈尔滨150001

出　　处：《噪声与振动控制》2015年第2期19-23,共5页Noise and Vibration Control

摘　　要：为了解决水下航行器这种柱形噪声源的定位与识别问题,采用柱面近场声全息技术,研究了辐射声场重构。利用声场仿真分析验证采用该方法进行声场重构的正确性,并对测试过程中基阵测试距离、全息面阵元位置误差以及相位误差对声场重构精度的影响进行分析。最后开展了水下航行器舱段模型的柱面近场声全息试验研究,得到了舱段内部电磁激振器的水下辐射声场和位置信息,验证了该方法的可行性和有效性。The cylindrical near- field acoustic holography（NAH） method was proposed for localizing and identifying the noise sources of the AUV. Reconstruction of the radiation sound fields was studied. The feasibility and correctness of this method for sound field reconstruction were verified by the acoustic field simulation. The influences of the array test distance,position errors of the holographic planar array and the reconstruction phase errors on the accuracy of the sound field reconstruction were analyzed. Furthermore, the radiation acoustic field and the location information of the electromagnetic actuator in the cabin model were obtained by the method of cylindrical NAH. The experimental result shows that the radiation acoustic field of the AUV can be reconstructed correctly and effectively with this method.

关 键 词：声学 水下航行器 柱面近场声全息 声场重构 影响因素 试验 

分 类 号：O322[理学—一般力学与力学基础]