迷宫结构的超通风吸声片材

IF 3.4 2区物理与天体物理 Q1 ACOUSTICS

Applied Acoustics Pub Date : 2025-08-23 DOI:10.1016/j.apacoust.2025.111025

Chaolin Wu , Jiayu Fan , Cong Gao , Xing Li , Jiali Ma , Yuanwu Shi , Yingzhou Huang , Xiaoxiao Wu

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引用次数: 0

摘要

超通风吸声材料的研究在声学研究和工程中都具有重要的意义。然而，由于低频（< 500 Hz）耗散较弱，在没有任何附加结构的情况下，很难在保持自由传输通道的情况下实现有效吸收。为了解决这一难题，本文报道了一种基于迷宫式结构和元件间弱耦合的低轮廓层状超材料。通过理论分析和仿真，验证了实验结果的有效性和宽频带吸声效果。该层流具有良好的气流效率，通风面积比可达80%，风速比实验测量值可达95%以上。基于以上结果，迷宫式超通气吸声膜超材料有望在通风吸声领域发挥重要作用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Ultra-ventilated sound absorption lamina metamaterial with labyrinth structure

Studies on ultra-ventilated sound absorption metamaterials hold considerable importance in both acoustic research and engineering. However, due to the weak dissipation at low frequency (< 500 Hz), it is hard to achieve efficient absorption while maintaining a free transmission channel without any additional structures. To tackle this difficulty, a low-profile lamina metamaterial based on labyrinthine structure and weak coupling between elements is reported in this Letter. High-efficiency and broadband sound absorption are achieved experimentally, which is demonstrated through theoretical analysis, and simulations. The lamina exhibits superior airflow efficiency with a ventilation area ratio of 80 %, and its wind speed ratio, as measured experimentally, exceeds 95 %. Based on these results, labyrinthine ultra-ventilated sound absorption lamina metamaterial is expected to play an important role in the field of ventilated sound absorption.

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来源期刊

Applied Acoustics 物理-声学

CiteScore

7.40

自引率

11.80%

发文量

618

审稿时长

7.5 months

期刊介绍： Since its launch in 1968, Applied Acoustics has been publishing high quality research papers providing state-of-the-art coverage of research findings for engineers and scientists involved in applications of acoustics in the widest sense. Applied Acoustics looks not only at recent developments in the understanding of acoustics but also at ways of exploiting that understanding. The Journal aims to encourage the exchange of practical experience through publication and in so doing creates a fund of technological information that can be used for solving related problems. The presentation of information in graphical or tabular form is especially encouraged. If a report of a mathematical development is a necessary part of a paper it is important to ensure that it is there only as an integral part of a practical solution to a problem and is supported by data. Applied Acoustics encourages the exchange of practical experience in the following ways: • Complete Papers • Short Technical Notes • Review Articles; and thereby provides a wealth of technological information that can be used to solve related problems. Manuscripts that address all fields of applications of acoustics ranging from medicine and NDT to the environment and buildings are welcome.