We study both numerically and experimentally an acoustic metasurface based on coupled Helmholtz resonators to obtain broadband low-frequency spectral responses for acoustic insulation. A hierarchical approach is proposed, starting from single and coupled Helmholtz resonators, up to a periodic array of resonators. To this end, we performed numerical simulations using the finite element method, in which the resonators are modeled as drilled rigid spheres in airborne environment and experimental demonstrations based on ping-pong balls as Helmholtz resonators in an acoustic reverberation box. We showed the alteration of the low-frequency response of acoustic insulation resulting from inter-unit coupling in acoustic metasurfaces, and the apparition of additional attenuation by inserting a plexiglass board as support for the structure.
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Low frequency sound isolation by a metasurface of Helmholtz ping-pong ball resonators
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14 October 2023
Research Article|
October 10 2023
Low frequency sound isolation by a metasurface of Helmholtz ping-pong ball resonators
R. Sabat
;
R. Sabat
(Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Software, Validation, Writing – original draft)
1
IEMN, University of Lille, Cité Scientifique
, 59650, Villeneuve d’Ascq, France
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E. Cochin
;
E. Cochin
(Investigation, Methodology, Writing – review & editing)
2
UMET, University of Lille, Cité Scientifique
, 59650, Villeneuve d’Ascq, France
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M. Kalderon
;
M. Kalderon
(Methodology, Writing – review & editing)
3
Dynamics and Acoustics Laboratory, National Technical University of Athens
, Heroon Polytechniou 9, Athens, Zografou 15780, Greece
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G. Lévêque
;
G. Lévêque
(Conceptualization, Software, Supervision, Writing – review & editing)
1
IEMN, University of Lille, Cité Scientifique
, 59650, Villeneuve d’Ascq, France
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I. Antoniadis
;
I. Antoniadis
(Writing – review & editing)
3
Dynamics and Acoustics Laboratory, National Technical University of Athens
, Heroon Polytechniou 9, Athens, Zografou 15780, Greece
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B. Djafari-Rouhani
;
B. Djafari-Rouhani
(Conceptualization, Supervision, Writing – review & editing)
1
IEMN, University of Lille, Cité Scientifique
, 59650, Villeneuve d’Ascq, France
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Y. Pennec
Y. Pennec
a)
(Conceptualization, Funding acquisition, Supervision, Writing – review & editing)
1
IEMN, University of Lille, Cité Scientifique
, 59650, Villeneuve d’Ascq, France
a)Author to whom correspondence should be addressed: yan.pennec@univ-lille.fr
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a)Author to whom correspondence should be addressed: yan.pennec@univ-lille.fr
J. Appl. Phys. 134, 144502 (2023)
Article history
Received:
May 31 2023
Accepted:
August 27 2023
Citation
R. Sabat, E. Cochin, M. Kalderon, G. Lévêque, I. Antoniadis, B. Djafari-Rouhani, Y. Pennec; Low frequency sound isolation by a metasurface of Helmholtz ping-pong ball resonators. J. Appl. Phys. 14 October 2023; 134 (14): 144502. https://doi.org/10.1063/5.0160267
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