期刊
PHYSICAL REVIEW APPLIED
卷 18, 期 4, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevApplied.18.044008
关键词
-
资金
- National Key R&D Pro-gram of China
- National Natural Science Foundation of China
- [2020YFA0211400]
- [11974176]
- [12174188]
- [12174192]
We numerically demonstrate a general method to achieve acoustic high absorption in water with a wide range of incident angles and a broad frequency bandwidth. By engineering multilayer solid composites to be perfectly impedance matched with water and adding a proper loss factor, sound waves can be gradually dissipated and high absorption can be realized. This method is robust and adaptive to a broad range of material parameters.
We numerically demonstrate a general method to achieve acoustic high absorption in water with a wide range of incident angles and a broad frequency bandwidth. Different from previous studies considering local resonances with a narrow bandwidth or porous materials with a gradient design, we show that flat multilayer solid composites can be engineered to be perfectly impedance matched with water over a wide range of angles and a broad spectrum. By adding a proper loss factor to the composites, sound waves can be gradually dissipated and high absorption can be realized. Such a method is robust and adaptive to a broad range of material parameters. Our work could promise broad underwater applications.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据