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使用传递矩阵法评估一种混合水下吸声超结构

Evaluation of a Hybrid Underwater Sound-Absorbing Metastructure by Using the Transfer Matrix Method.

作者信息

Lin Han-Chun, Lu Shu-Cheng, Huang Hsin-Haou

机构信息

Department of Engineering Science and Ocean Engineering, National Taiwan University, Taipei 10617, Taiwan.

出版信息

Materials (Basel). 2023 Feb 18;16(4):1718. doi: 10.3390/ma16041718.

DOI:10.3390/ma16041718
PMID:36837348
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9967930/
Abstract

In this study, we designed a novel hybrid underwater sound-absorbing material of the metastructure that contains a viscoelastic substrate with a microperforated panel. Two types of sound-absorbing metastructures were combined to achieve satisfactory sound absorption performance in the low-frequency range. A homogenized equivalent layer and the integrated transfer matrix method were used to theoretically evaluate the sound absorption performance of the designed nonhomogeneous hybrid metastructure. The theoretical results were then compared with the results obtained using the finite-element method. The designed hybrid sound-absorbing metastructure exhibited two absorption peaks because of its different sound-absorbing mechanisms. The acoustic performance of the developed metastructure is considerably better than that of a traditional sound absorber, and the sound absorption coefficient of the developed metastructure is 0.8 in the frequency range of 3-10 kHz. In addition, an adjustment method for the practical underwater application of the designed metastructure is described in this research. Further studies show that the sound absorption coefficient of the adjusted metastructure still has 0.75 in the frequency range of 3-10 kHz, which indicates that this metastructure has the potential to be used as an underwater sound-absorbing structure. The results of this study can be used as a reference in the design of other novel hybrid underwater sound-absorbing structures.

摘要

在本研究中，我们设计了一种新型的亚结构混合水下吸声材料，该材料包含一个带有微穿孔板的粘弹性基底。将两种类型的吸声亚结构相结合，以在低频范围内实现令人满意的吸声性能。使用均匀等效层和集成传递矩阵法从理论上评估所设计的非均匀混合亚结构的吸声性能。然后将理论结果与使用有限元法获得的结果进行比较。所设计的混合吸声亚结构由于其不同的吸声机制而呈现出两个吸收峰。所开发的亚结构的声学性能明显优于传统吸声器，并且在所开发的亚结构在3 - 10kHz频率范围内的吸声系数为0.8。此外，本研究还描述了所设计的亚结构在实际水下应用中的一种调整方法。进一步的研究表明，调整后的亚结构在3 - 10kHz频率范围内的吸声系数仍为0.75，这表明该亚结构有潜力用作水下吸声结构。本研究结果可为其他新型混合水下吸声结构的设计提供参考。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/59ef/9967930/a061ddaf1117/materials-16-01718-g021.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/59ef/9967930/b1ab803e19c8/materials-16-01718-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/59ef/9967930/febae0b33afc/materials-16-01718-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/59ef/9967930/8b6631293a33/materials-16-01718-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/59ef/9967930/11131b8fe2a4/materials-16-01718-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/59ef/9967930/57b467c68aa9/materials-16-01718-g013.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/59ef/9967930/eb92846707cc/materials-16-01718-g014.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/59ef/9967930/c05c4cc34bc6/materials-16-01718-g015.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/59ef/9967930/588d0cdb8e48/materials-16-01718-g016.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/59ef/9967930/442b4de8e6ae/materials-16-01718-g017.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/59ef/9967930/2f91103ce319/materials-16-01718-g018.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/59ef/9967930/9dd4e612aa0d/materials-16-01718-g019.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/59ef/9967930/059ff5c5b85a/materials-16-01718-g020.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/59ef/9967930/a061ddaf1117/materials-16-01718-g021.jpg

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引用本文的文献

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本文引用的文献

1
Hybrid acoustic metamaterial as super absorber for broadband low-frequency sound.混合声学超材料作为宽带低频吸声体。
Sci Rep. 2017 Feb 27;7:43340. doi: 10.1038/srep43340.
2
Phononic glass: a robust acoustic-absorption material.声子玻璃：一种坚固的吸声材料。
J Acoust Soc Am. 2012 Aug;132(2):694-9. doi: 10.1121/1.4730922.
3
Numerical design of Alberich anechoic coatings with superellipsoidal cavities of mixed sizes.具有混合尺寸超椭球体空腔的阿尔贝里希吸声涂层的数值设计。
J Acoust Soc Am. 2008 Oct;124(4):1974-84. doi: 10.1121/1.2967840.
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Porous metal absorbers for underwater sound.用于水下声音的多孔金属吸声器。
J Acoust Soc Am. 2007 Nov;122(5):2626-35. doi: 10.1121/1.2785041.