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Article: Lightweight stiffness-dominated acoustic metamaterial barrier for low-frequency sound
Title | Lightweight stiffness-dominated acoustic metamaterial barrier for low-frequency sound |
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Authors | |
Issue Date | 7-Aug-2023 |
Publisher | American Institute of Physics |
Citation | Journal of Applied Physics, 2023, v. 134, n. 5 How to Cite? |
Abstract | In this study, we experimentally demonstrate a class of lightweight acoustic metamaterial barriers that block low-frequency sound. The acoustic metamaterial barrier is composed of a thin rubber membrane coated over a stiff honeycomb plate. Our findings, combined with high-fidelity finite element simulations, demonstrate that the sound insulation performance of the acoustic metamaterial surpasses the mass law in three distinct frequency ranges: (a) the stiffness law dominates insulation up to 140 Hz, (b) degeneracy and destructive superposition of high-order natural modes dominate within the frequency range of 300–500 Hz, and (c) destructive interference between high-order resonance and membrane resonance dominates in the frequency range of 800–1200 Hz. Notably, our study highlights the potential of high-order shear vibration of the periodic structure for the resonant bending waves of the honeycomb cell that coincide with the wavelengths of longitudinal sound waves in air, thereby offering new design guidelines for lightweight acoustic metamaterial barriers. This study reports for the first time the coincidence of high-order and membrane resonance modes within the honeycomb cell by employing an accurate finite element model and experimental validation. |
Persistent Identifier | http://hdl.handle.net/10722/338750 |
ISSN | 2023 Impact Factor: 2.7 2023 SCImago Journal Rankings: 0.649 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Nagami, Tadashi | - |
dc.contributor.author | Miura, Susumu | - |
dc.contributor.author | Miyakawa, Takayuki | - |
dc.contributor.author | Sawada, Hiroyuki | - |
dc.contributor.author | Minami, Kenta | - |
dc.contributor.author | Ichikawa, Atsushi | - |
dc.contributor.author | Horibe, Norifumi | - |
dc.contributor.author | Enomoto, Toshio | - |
dc.contributor.author | Fang, Nicholas X | - |
dc.date.accessioned | 2024-03-11T10:31:15Z | - |
dc.date.available | 2024-03-11T10:31:15Z | - |
dc.date.issued | 2023-08-07 | - |
dc.identifier.citation | Journal of Applied Physics, 2023, v. 134, n. 5 | - |
dc.identifier.issn | 0021-8979 | - |
dc.identifier.uri | http://hdl.handle.net/10722/338750 | - |
dc.description.abstract | <p>In this study, we experimentally demonstrate a class of lightweight acoustic metamaterial barriers that block low-frequency sound. The acoustic metamaterial barrier is composed of a thin rubber membrane coated over a stiff honeycomb plate. Our findings, combined with high-fidelity finite element simulations, demonstrate that the sound insulation performance of the acoustic metamaterial surpasses the mass law in three distinct frequency ranges: (a) the stiffness law dominates insulation up to 140 Hz, (b) degeneracy and destructive superposition of high-order natural modes dominate within the frequency range of 300–500 Hz, and (c) destructive interference between high-order resonance and membrane resonance dominates in the frequency range of 800–1200 Hz. Notably, our study highlights the potential of high-order shear vibration of the periodic structure for the resonant bending waves of the honeycomb cell that coincide with the wavelengths of longitudinal sound waves in air, thereby offering new design guidelines for lightweight acoustic metamaterial barriers. This study reports for the first time the coincidence of high-order and membrane resonance modes within the honeycomb cell by employing an accurate finite element model and experimental validation.<br></p> | - |
dc.language | eng | - |
dc.publisher | American Institute of Physics | - |
dc.relation.ispartof | Journal of Applied Physics | - |
dc.rights | This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. | - |
dc.title | Lightweight stiffness-dominated acoustic metamaterial barrier for low-frequency sound | - |
dc.type | Article | - |
dc.identifier.doi | 10.1063/5.0155542 | - |
dc.identifier.scopus | eid_2-s2.0-85167344505 | - |
dc.identifier.volume | 134 | - |
dc.identifier.issue | 5 | - |
dc.identifier.eissn | 1089-7550 | - |
dc.identifier.isi | WOS:001041159400010 | - |
dc.identifier.issnl | 0021-8979 | - |