用于管道中模态声衰减的混合赫歇尔-昆克衬垫

IF 3.4 2区物理与天体物理 Q1 ACOUSTICS

Applied Acoustics Pub Date : 2025-07-18 DOI:10.1016/j.apacoust.2025.110938

Lingfeng Chen , Jilin Niu , Weirui Qin , Zhiliang Hong

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引用次数: 0

摘要

本文介绍了一种混合赫歇尔-昆克衬里，它由赫歇尔-昆克（HQ）管和多孔材料组成，并带有穿孔板覆盖，以增强管道的噪声衰减。HQ管与穿孔板之间的多孔材料提供补充阻尼，从而在不占用额外空间的情况下改善噪声衰减。通过高阶模态下的插入损耗实验，对混合HQ衬垫的吸收性能进行了评价。研究表明，多孔材料的掺入不仅提高了单频衰减能力，而且拓宽了有效频率范围，凸显了混合HQ衬垫的应用潜力。对带穿孔板的HQ管的进一步研究强调了穿孔板对噪声衰减的关键作用。这些结构设计的有效性取决于穿孔板的传递阻抗。

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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A hybrid Herschel-Quincke liner for modal sound attenuation in ducts

This paper introduces a hybrid Herschel-Quincke liner consisting of the Herschel-Quincke (HQ) tube and porous material with a perforated plate covering for enhancing duct noise attenuation. The porous material between the HQ tube and the perforated plate provides supplementary damping, thereby improving noise attenuation without occupying additional space. The absorption performance of the hybrid HQ liner is evaluated through insertion loss experiments under higher order modes. The research reveals that the incorporation of porous material not only increases the single-frequency attenuation capability but also broadens the effective frequency range, highlighting the application potential of the hybrid HQ liner. Further investigation into the HQ tube with the perforated plate emphasizes the pivotal role of the perforated plate in affecting noise attenuation. The effectiveness of these structural designs is contingent upon the transfer impedance of the perforated plate.

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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.