A thin multi-order Helmholtz metamaterial with perfect broadband acoustic absorption
发布时间：2025-04-30
点击次数：
- 发布时间：
- 2025-04-30
- 论文名称：
- A thin multi-order Helmholtz metamaterial with perfect broadband acoustic absorption
- 发表刊物：
- Applied Physics Express
- 摘要：
- We propose a multi-order Helmholtz metamaterial with deep-subwavelength thickness in which perfect continuous acoustic absorption is achieved within 400 Hz ∼ 2800 Hz. The metamaterial is composed of multiple detuned cells, each of which is constructed by several perforated plates inserting into the cavity of a Helmholtz resonator (HR) and hence gains multiple individually-tuned high-order peaks besides the original HR peak. By precisely designing each peak of the cells, the extra-broadband perfect absorption can be obtained. This kind of metamaterials could possess broad applications in noise control engineering owing to the extraordinary absorption performance and high flexural stiffness.
- 合写作者：
- Chong Rui Liu , Jiu Hui Wu, Fuyin Ma , Xu Chen, and Zhengrui Yang
- 卷号：
- 12
- 页面范围：
- 084002
- 是否译文：
- 否
- 发表时间：
- 2019-07-17