声学探测型水下滑翔机吸声结构设计及仿真分析  

Design and Simulation Analysis of Sound Absorption Structure for Acoustic Detection-Based Underwater Gliders

作　　者：曾栋海 吴新宇 袁畅 彭宇轩 张建星 李宝仁[1] ZENG Donghai;WU Xinyu;YUAN Chang;PENG Yuxuan;ZHANG Jianxing;LI Baoren(School of Mechanical Science and Engineering,Huazhong University of Science and Technology,Wuhan 430074,China;China Ship Development and Design Center,Wuhan 430064,China)

机构地区：[1]华中科技大学机械科学与工程学院,湖北武汉430074 [2]中国舰船研究设计中心,湖北武汉430064

出　　处：《水下无人系统学报》2024年第6期980-988,共9页Journal of Unmanned Undersea Systems

摘　　要：机械噪声中的辐射噪声会对声学探测型水下滑翔机声学探测性能产生严重影响,针对该问题,文中将吸声结构引入水下滑翔机的辐射噪声降噪研究。首先建立不同吸声结构的理论模型,根据微穿孔板和多孔材料吸声理论,提出用于降低水下滑翔机辐射噪声的复合吸声结构,并利用Comsol软件对复合吸声结构进行仿真分析,用于指导复合吸声结构设计。仿真结果表明:多孔材料层-空气腔-微穿孔板层-并联空气腔的复合吸声结构在0~2000 Hz内的效果最好,其在200~1200 Hz内的平均吸声系数为0.663,能有效降低水下滑翔机特定工况下的辐射噪声,减小自噪声的干扰,提高声学探测滑翔机的探测水平。The radiation noise of mechanical noise has a significant impact on the acoustic detection performance of acoustic detection-based underwater gliders.In order to address this problem,this paper introduced sound absorption structure into the study of radiation noise of underwater gliders.Firstly,the theoretical models of different sound absorption structures were established,and according to the sound absorption theories of microperforated panel and porous materials,the composite sound absorption structure for reducing the radiation noise of underwater gliders was proposed,and the simulation analysis of the composite sound absorption structure was carried out by using Comsol software for guiding the design of the composite sound absorption structure.The simulation results show that the composite sound absorption structure of porous material layer-air cavity-microperforated panel-parallel air cavity has the best performance in the range of 0–2000 Hz,and its average sound absorption coefficient is 0.663 in the range of 200–1200 Hz,which can reduce the radiation noise of the underwater gliders under specific working conditions,weaken the interference of self-noise,and improve the detection ability of acoustic detection-based gliders.

关 键 词：水下滑翔机 辐射噪声 吸声结构 微穿孔板 多孔材料 

分 类 号：TJ630[兵器科学与技术—武器系统与运用工程] U674.941[交通运输工程—船舶及航道工程]