| ID | 61555 |
| FullText URL | |
| Author |
Takasugi, Shota
Department of Electrical and Electronic Engineering, Okayama University
Watanabe, Keita
Department of Electrical and Electronic Engineering, Okayama University
Misawa, Masaaki
Department of Electrical and Electronic Engineering, Okayama University
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Tsuruta, Kenji
Department of Electrical and Electronic Engineering, Okayama University
ORCID
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| Abstract | Among the acoustic metasurfaces that can control the propagation of sound waves with the structure far thinner than the wavelength at the operating frequency, the split tube structure has shown its effectiveness in the lower frequency band. Here we focus on multiply layered split tubes to broaden the absorption spectrum. By numerical analysis, we show up-to six-layer structure possessing wideband (1–1000 Hz) sound absorption. The absorbing peaks in the frequency band below 1000 Hz are shown to be multiplexed not only by simple superposition of vibrational modes of each layer, but also by hybridization of the modes indicating collective motion of tubes.
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| Note | This fulltext is available in Feb. 2022.
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| Published Date | 2021-02-22
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| Publication Title |
Japanese Journal of Applied Physics
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| Volume | volume60
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| Issue | issueSD
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| Publisher | IOP Publishing
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| Start Page | SDDA01
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| ISSN | 0021-4922
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| NCID | AA12295836
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| Content Type |
Journal Article
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| language |
English
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| OAI-PMH Set |
岡山大学
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| File Version | author
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| DOI | |
| Web of Science KeyUT | |
| Related Url | isVersionof https://doi.org/10.35848/1347-4065/abe2e5
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| License | https://creativecommons.org/licenses/by-nc-nd/3.0/
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| Funder Name |
Japan Society for the Promotion of Science
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| 助成番号 | 17K19035
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