DC Field | Value | Language |
---|---|---|
dc.contributor.author | Zhu, Xing-Feng | ko |
dc.contributor.author | Lau, Siu-Kit | ko |
dc.contributor.author | Lu, Zhenbo | ko |
dc.contributor.author | Jeon, Wonju | ko |
dc.date.accessioned | 2023-08-24T08:00:21Z | - |
dc.date.available | 2023-08-24T08:00:21Z | - |
dc.date.created | 2023-07-06 | - |
dc.date.issued | 2019-07 | - |
dc.identifier.citation | 26th International Congress on Sound and Vibration, ICSV 2019 | - |
dc.identifier.uri | http://hdl.handle.net/10203/311793 | - |
dc.description.abstract | We demonstrate a high-efficiency sound-absorbing metasurface operating at low frequency. The metasurface absorber is based on acoustic porous layer embedded two identical but oppositely oriented split tube resonators. A high absorption (>50%) is obtained in a frequency range from 170 Hz to 750 Hz and over 90% absorption exhibits from 285 Hz to 340 Hz, while the thickness of the absorber is only 1/6 of the relevant wavelength at 500 Hz. The broadband and high absorption performances are due to the coupling of the resonance modes and the trapped mode. Furthermore, the high-efficiency low-frequency absorption of the metasurface is robust under oblique incidence even at large angles. The absorber is ease of fabrication, subwavelength thickness, and robust high-efficiency. Therefore, it has high potential applications in noise control and architectural acoustics | - |
dc.language | English | - |
dc.publisher | Canadian Acoustical Association | - |
dc.title | High-efficiency sound-absorbing metasurface at low frequency | - |
dc.type | Conference | - |
dc.identifier.scopusid | 2-s2.0-85084013599 | - |
dc.type.rims | CONF | - |
dc.citation.publicationname | 26th International Congress on Sound and Vibration, ICSV 2019 | - |
dc.identifier.conferencecountry | CN | - |
dc.identifier.conferencelocation | Montreal | - |
dc.contributor.localauthor | Jeon, Wonju | - |
dc.contributor.nonIdAuthor | Zhu, Xing-Feng | - |
dc.contributor.nonIdAuthor | Lau, Siu-Kit | - |
dc.contributor.nonIdAuthor | Lu, Zhenbo | - |
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