Broadband Acoustic Metamaterial Absorber

Zhiling Zhou; Sibo Huang; Qian Cheng; Xu Wang; Jie Zhu; Yong Li

doi:10.3397/in_2024_2881

Broadband Acoustic Metamaterial Absorber

Zhiling Zhou, Sibo Huang, Qian Cheng, Xu Wang, Jie Zhu, Yong Li

Department of Electrical Engineering

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

Abstract

Constrained by the causality nature, it is a challenge to achieve low-frequency broadband efficient absorption via passive materials. By coupling local resonances as many as possible, broadband metamaterial absorbers can be realized. In this scenario, the coupling effect is crucial for improving the absorption efficiency. Here, we demonstrate a kind of acoustic metamaterial absorber capable of high-efficiency broadband absorption by optimizing the non-local coupling effect. Cascade neck-embedded Helmholtz resonator is designed as the subunit of the metamaterial absorber. By coupling 36 subunits, a metamaterial absorber is constructed with the aid of optimization algorithm. The simulation results suggest that strong non-locality is induced in the near field, which effectively suppresses the impedance oscillations and absorption dips at the antiresonance frequencies. Eventually, the presented metamaterial absorber realizes impedance matching to the air from 320 Hz to 6400 Hz, leading to efficient broadband absorption performance. The results and methodologies in this work reveal the significance of non-local coupling effect in coupled-resonant metamaterials. © 2024 by Societe Francaise d’Acoustique. All Rights Reserved.

Original language	English
Title of host publication	INTER-NOISE and NOISE-CON Congress and Conference Proceedings
Subtitle of host publication	INTER-NOISE24, Nantes, France
Publisher	Institute of Noise Control Engineering
Pages	1316-1322
Volume	2
ISBN (Print)	9798331322151
DOIs	https://doi.org/10.3397/in_2024_2881
Publication status	Published - 4 Oct 2024
Event	53rd International Congress and Exposition on Noise Control Engineering (INTER-NOISE24) - La Cité Nantes Congress Centre, Nantes, France Duration: 25 Aug 2024 → 29 Aug 2024

Publication series

Name	INTER-NOISE and NOISE-CON Congress and Conference Proceedings
Volume	2
ISSN (Print)	0736-2935

Conference

Conference	53rd International Congress and Exposition on Noise Control Engineering (INTER-NOISE24)
Place	France
City	Nantes
Period	25/08/24 → 29/08/24

Bibliographical note

Full text of this publication does not contain sufficient affiliation information. The Research Unit(s) information for this record is based on the then academic department affiliation of the author(s).

Funding

This work is supported by the National Natural Science Foundation of China (Grants Nos. 12074286 and 11774297) and the Shanghai Science and Technology Committee (Grants Nos. 20ZR1460900 and 20DZ1207200).

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Zhou, Z., Huang, S., Cheng, Q., Wang, X., Zhu, J., & Li, Y. (2024). Broadband Acoustic Metamaterial Absorber. In INTER-NOISE and NOISE-CON Congress and Conference Proceedings: INTER-NOISE24, Nantes, France (Vol. 2, pp. 1316-1322). (INTER-NOISE and NOISE-CON Congress and Conference Proceedings; Vol. 2). Institute of Noise Control Engineering. https://doi.org/10.3397/in_2024_2881

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abstract = "Constrained by the causality nature, it is a challenge to achieve low-frequency broadband efficient absorption via passive materials. By coupling local resonances as many as possible, broadband metamaterial absorbers can be realized. In this scenario, the coupling effect is crucial for improving the absorption efficiency. Here, we demonstrate a kind of acoustic metamaterial absorber capable of high-efficiency broadband absorption by optimizing the non-local coupling effect. Cascade neck-embedded Helmholtz resonator is designed as the subunit of the metamaterial absorber. By coupling 36 subunits, a metamaterial absorber is constructed with the aid of optimization algorithm. The simulation results suggest that strong non-locality is induced in the near field, which effectively suppresses the impedance oscillations and absorption dips at the antiresonance frequencies. Eventually, the presented metamaterial absorber realizes impedance matching to the air from 320 Hz to 6400 Hz, leading to efficient broadband absorption performance. The results and methodologies in this work reveal the significance of non-local coupling effect in coupled-resonant metamaterials. {\textcopyright} 2024 by Societe Francaise d{\textquoteright}Acoustique. All Rights Reserved.",

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Zhou, Z, Huang, S, Cheng, Q, Wang, X, Zhu, J & Li, Y 2024, Broadband Acoustic Metamaterial Absorber. in INTER-NOISE and NOISE-CON Congress and Conference Proceedings: INTER-NOISE24, Nantes, France. vol. 2, INTER-NOISE and NOISE-CON Congress and Conference Proceedings, vol. 2, Institute of Noise Control Engineering, pp. 1316-1322, 53rd International Congress and Exposition on Noise Control Engineering (INTER-NOISE24), Nantes, France, 25/08/24. https://doi.org/10.3397/in_2024_2881

Broadband Acoustic Metamaterial Absorber. / Zhou, Zhiling; Huang, Sibo; Cheng, Qian et al.
INTER-NOISE and NOISE-CON Congress and Conference Proceedings: INTER-NOISE24, Nantes, France. Vol. 2 Institute of Noise Control Engineering, 2024. p. 1316-1322 (INTER-NOISE and NOISE-CON Congress and Conference Proceedings; Vol. 2).

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

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T1 - Broadband Acoustic Metamaterial Absorber

AU - Zhou, Zhiling

AU - Huang, Sibo

AU - Cheng, Qian

AU - Wang, Xu

AU - Zhu, Jie

AU - Li, Yong

N1 - Full text of this publication does not contain sufficient affiliation information. The Research Unit(s) information for this record is based on the then academic department affiliation of the author(s).

PY - 2024/10/4

Y1 - 2024/10/4

N2 - Constrained by the causality nature, it is a challenge to achieve low-frequency broadband efficient absorption via passive materials. By coupling local resonances as many as possible, broadband metamaterial absorbers can be realized. In this scenario, the coupling effect is crucial for improving the absorption efficiency. Here, we demonstrate a kind of acoustic metamaterial absorber capable of high-efficiency broadband absorption by optimizing the non-local coupling effect. Cascade neck-embedded Helmholtz resonator is designed as the subunit of the metamaterial absorber. By coupling 36 subunits, a metamaterial absorber is constructed with the aid of optimization algorithm. The simulation results suggest that strong non-locality is induced in the near field, which effectively suppresses the impedance oscillations and absorption dips at the antiresonance frequencies. Eventually, the presented metamaterial absorber realizes impedance matching to the air from 320 Hz to 6400 Hz, leading to efficient broadband absorption performance. The results and methodologies in this work reveal the significance of non-local coupling effect in coupled-resonant metamaterials. © 2024 by Societe Francaise d’Acoustique. All Rights Reserved.

AB - Constrained by the causality nature, it is a challenge to achieve low-frequency broadband efficient absorption via passive materials. By coupling local resonances as many as possible, broadband metamaterial absorbers can be realized. In this scenario, the coupling effect is crucial for improving the absorption efficiency. Here, we demonstrate a kind of acoustic metamaterial absorber capable of high-efficiency broadband absorption by optimizing the non-local coupling effect. Cascade neck-embedded Helmholtz resonator is designed as the subunit of the metamaterial absorber. By coupling 36 subunits, a metamaterial absorber is constructed with the aid of optimization algorithm. The simulation results suggest that strong non-locality is induced in the near field, which effectively suppresses the impedance oscillations and absorption dips at the antiresonance frequencies. Eventually, the presented metamaterial absorber realizes impedance matching to the air from 320 Hz to 6400 Hz, leading to efficient broadband absorption performance. The results and methodologies in this work reveal the significance of non-local coupling effect in coupled-resonant metamaterials. © 2024 by Societe Francaise d’Acoustique. All Rights Reserved.

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DO - 10.3397/in_2024_2881

M3 - RGC 32 - Refereed conference paper (with host publication)

SN - 9798331322151

VL - 2

T3 - INTER-NOISE and NOISE-CON Congress and Conference Proceedings

SP - 1316

EP - 1322

BT - INTER-NOISE and NOISE-CON Congress and Conference Proceedings

PB - Institute of Noise Control Engineering

T2 - 53rd International Congress and Exposition on Noise Control Engineering (INTER-NOISE24)

Y2 - 25 August 2024 through 29 August 2024

ER -

Broadband Acoustic Metamaterial Absorber

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