摘要
经过50多年的发展,尤其是近20年中,在水下目标声隐身背景需求的促进和推动下,以吸声覆盖层为主要研究对象的声隐身结构研究,已经建立了完整的理论框架。本文将目前国内外主要的吸声覆盖层结构分为粘弹性复合吸声结构、周期散射复合吸声结构、孔腔谐振吸声结构等,比较了各种吸声覆盖层的结构形式对吸声性能的影响,并从吸声机理出发,分析了各种吸声覆盖层结构的主要研究方法,最后展望了我国水下吸声覆盖层结构及吸声机理研究的趋势。
The requirements of underwater acoustic stealth technique had promoted the research on underwater anechoic coating structure for recent 50 years.Accordingly,a comprehensive theoretical foundation had been formed for the passed 20 years.This paper summarized the main structure and valuable results of underwater anechoic coating.More specifically,it classified the main structure into visoelastic composite absorption structures,cycle scattering composite absorption structures,cavity resonant absorption structures. The effect of structure form to absorption properties was compared. The underwater anechoic coating structures and absorption theories were analyzed. In the end of this paper, it prospected the feature research trend on this topic in our country.
出处
《舰船科学技术》
2009年第8期23-30,共8页
Ship Science and Technology
基金
国家973重大基础研究基金资助项目(51335020101)
国防重点预研基金资助项目
关键词
声隐身
吸声覆盖层
粘弹性
散射
谐振
acoustic stealth
anechoic coating
viscoelastic
scattering
resonant
