A novel membrane-cavity-grating (MCG) meta-structure for enhancing low-frequency sound absorption

For resonant-type absorbers with a back cavity, the improvement of low-frequency sound absorption always depends on increasing the back cavity depth, which hinders its practical application. To realize satisfactory sound absorption performance in low-frequency range (

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Bibliographische Detailangaben
Veröffentlicht in:	Journal of physics. D, Applied physics Applied physics, 2022-09, Vol.55 (39), p.395502
Hauptverfasser:	Wang, Li Bo, Wu, Jiu Hui, Lei, Yun Zhong, Niu, Jia Min, Huang, Yao, Liu, Chong Rui
Format:	Artikel
Sprache:	eng
Schlagworte:	acoustic impedance matching low-frequency and high-efficiency membrane type meta-structure sound absorption ultra-thin scale
Online-Zugang:	Volltext
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Beschreibung
Zusammenfassung:	For resonant-type absorbers with a back cavity, the improvement of low-frequency sound absorption always depends on increasing the back cavity depth, which hinders its practical application. To realize satisfactory sound absorption performance in low-frequency range (
ISSN:	0022-3727 1361-6463
DOI:	10.1088/1361-6463/ac8125