A thin multi-order Helmholtz metamaterial with extraordinary perfect acoustic absorption within 400 Hz – 2800 Hz
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 extraordinary perfect acoustic absorption within 400 Hz – 2800 Hz
- 发表刊物：
- Appl. Phys. Exp.
- 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
- 卷号：
- Vol.12, 2019
- 页面范围：
- 084002 (4 Pages)
- 是否译文：
- 否
- 发表时间：
- 2019-07-01