部分填充亥姆霍兹谐振腔的特性

IF 1 3区物理与天体物理 Q4 ACOUSTICS

Acta Acustica Pub Date : 2023-01-01 DOI:10.1051/aacus/2023039

Mikhail V. Indenbom, Souren P. Pogossian

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引用次数: 1

摘要

在这项工作中，我们开发了一种测量亥姆霍兹谐振器的共振曲线的技术，作为填充不同大小的珠子和沙子的函数，并以水为参考。我们的测量使我们能够观察到共振频率和共振半宽度作为沙粒和珠子大小的函数的非常不同的行为。通过比较珠子和水的结果，我们能够证明声音穿过珠子之间的间隙空间。实验结果表明，填充球珠的谐振腔的填充系数接近于随机填充系数，约为0.54。三种不同尺寸的填沙谐振器的频率和共振半宽度的相似行为使我们认为声音穿透沙子的方式与穿透珠子的方式相同。

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Characteristics of partially filled Helmholtz resonators

In this work we have developed a technique for the measurement of the resonance curve of Helmholtz resonators as a function of filling with beads and sands of different sizes, and water as the reference. Our measurements allowed us to observe very different behaviors of resonance frequencies and resonance half-widths as a function of the size of the sand grains and the beads. By comparing results for beads and water we were able to prove that the sound penetrates the interstitial space between the beads. This was confirmed by measurements of the resonance properties in resonators filled with spherical beads whose experimentally determined filling factor is close to the random filling factor of about 0.54. The similar behavior of the frequency and half-width of resonance of sand-filled resonators of three different sizes allowed us to suggest that sound penetrates the sand in the same way as it does the beads.

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来源期刊

Acta Acustica ACOUSTICS-

CiteScore

2.80

自引率

21.40%

发文量

审稿时长

12 weeks

期刊介绍： Acta Acustica, the Journal of the European Acoustics Association (EAA). After the publication of its Journal Acta Acustica from 1993 to 1995, the EAA published Acta Acustica united with Acustica from 1996 to 2019. From 2020, the EAA decided to publish a journal in full Open Access. See Article Processing charges. Acta Acustica reports on original scientific research in acoustics and on engineering applications. The journal considers review papers, scientific papers, technical and applied papers, short communications, letters to the editor. From time to time, special issues and review articles are also published. For book reviews or doctoral thesis abstracts, please contact the Editor in Chief.