Sound Absorption of Locally Resonant Sonic Materials

Autor:	Wen Ji-Hong, Wang Gang, Liu Yao-Zong, Yu Dian-Long, Zhao Hong-Gang, Wen Xi-sen
Rok vydání:	2006
Předmět:	Resonant inelastic X-ray scattering Viscosity Absorption (acoustics) Materials science Acoustics Attenuation Slab General Physics and Astronomy Resonance Scattering process Translation (geometry)
Zdroj:	Chinese Physics Letters. 23:2132-2134
ISSN:	1741-3540 0256-307X
DOI:	10.1088/0256-307x/23/8/047
Popis:	The acoustic properties of locally resonant sonic materials with viscosity are theoretically investigated by using the multiple-scattering approach. We find that the absorption of a two-layer slab dominates the wave attenuation in the resonant frequency region under the condition of moderate or high viscous level. The fundamental mechanism operating in local resonance for absorption is investigated for the viability by the mode translation in the scattering process of a single scatterer. Finally the absorption performance in a multi-layer system is discussed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::c2eb9c6aff1381d442316320a9617811 https://doi.org/10.1088/0256-307x/23/8/047 Zobrazit plný text záznamu