声隐身超材料发展综述  

Prospects of acoustic metamaterials for acoustic stealth

作　　者：许伟龙 彭伟才[1,2] 张俊杰 何雪松[1,2] XU Weilong;PENG Weicai;ZHANG Junjie;HE Xuesong(China Ship Development and Design Center,Wuhan 430064,China;National Key Laboratory on Ship Vibration and Noise,Wuhan 430064,China)

机构地区：[1]中国舰船研究设计中心,湖北武汉430064 [2]船舶振动噪声重点实验室,湖北武汉430064

出　　处：《中国舰船研究》2020年第4期19-27,35,共10页Chinese Journal of Ship Research

基　　金：重点实验室基金资助项目(SYSZC2019001)。

摘　　要：随着声呐技术逐步实现低频探测等特点,声隐身技术的发展面临巨大挑战。声学超材料是一类具备超常物理特性的人工复合材料,可以实现小尺寸结构对大波长(低频)声波传播的抑制。从减隔振、吸隔声以及声目标强度3个方面分析声学超材料的特性,探讨声学超材料用于水下航行器声隐身的前景。与传统材料相比,声学超材料在降低水下航行器低频辐射噪声,牵引新型声隐身技术的发展方面有着广阔的应用前景。With the gradual realization of low frequency detection and other characteristics of sonar technology,the development of stealth technology is facing great challenges.Acoustic metamaterials are a new type of artificial composite materials with supernormal physical properties,which can suppress the propagation of large wavelength(low frequency)acoustic waves with a small size structure,providing a new path for acoustic stealth technology.In this paper,the working mechanism of acoustic metamaterials was analyzed from three aspects of vibration reduction and isolation,sound absorption and isolation,and reduction of acoustic target strength.And the prospect of acoustic metamaterials for acoustic stealth technology of underwater vehicles was also discussed.Compared with traditional materials,acoustic metamaterials have broad prospects in reducing low-frequency radiated noise of underwater vehicles and guiding the development of new acoustic stealth technology.

关 键 词：声学超材料 减隔振 吸隔声 声目标强度 声隐身 

分 类 号：U663.99[交通运输工程—船舶及航道工程]