具有低频宽带吸声性能的可调谐高阶微穿孔板超材料

IF 2.3 4区物理与天体物理 Q3 PHYSICS, APPLIED

Applied Physics Express Pub Date : 2024-08-20 DOI:10.35848/1882-0786/ad6956

Chongrui Liu, Xiaoli Liu, Zexiang Xie, Jiu Hui Wu, Fuyin Ma

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引用次数: 0

摘要

我们提出了一种用于宽带吸收的可调谐高阶微穿孔板超材料，其中的能量耗散模式由空腔隔板重构。由于阻抗设计的自由度更大，该超材料不仅能获得带宽更宽的多个完美吸收峰，还能灵活调节频率。通过耦合 12 个高阶单元，超材料最终实现了 300-3200 Hz 范围内平均吸收率为 94% 的平滑频谱。这种超材料因其非凡的性能，可在噪声控制工程中得到广泛应用。

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A tunable high-order micro-perforated panel metamaterial with low-frequency broadband acoustic absorption

We proposed a tunable high-order micro-perforated panel metamaterial for broadband absorption, in which the energy dissipation modes is reconstructed by the cavity partition plates. Owing to the more degrees of freedom in impedance design, the metamaterial not only obtains multiple perfect absorption peaks with broader bandwidth, but also allows for flexible frequency regulations. By coupling 12 high-order cells, the metamaterial finally achieves a smooth spectrum with 94% average absorption across the range of 300–3200 Hz, which is verified by the simulation and experiment. This metamaterial could have great applications in noise control engineering owing to the extraordinary performance.

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来源期刊

Applied Physics Express 物理-物理：应用

CiteScore

4.80

自引率

8.70%

发文量

310

审稿时长

1.2 months

期刊介绍： Applied Physics Express (APEX) is a letters journal devoted solely to rapid dissemination of up-to-date and concise reports on new findings in applied physics. The motto of APEX is high scientific quality and prompt publication. APEX is a sister journal of the Japanese Journal of Applied Physics (JJAP) and is published by IOP Publishing Ltd on behalf of the Japan Society of Applied Physics (JSAP).