Research on Low Frequency Sound Insulation Properties of Membrane-Type Acoustic Metamaterials

Autor:	Yongchao Xu, Hongyu Cui, Xiaokai Yin
Rok vydání:	2021
Předmět:	Membrane Materials science Computer Science::Sound Infrasound Acoustics Acoustic metamaterials
Zdroj:	IOP Conference Series: Materials Science and Engineering. 1210:012001
ISSN:	1757-899X 1757-8981
DOI:	10.1088/1757-899x/1210/1/012001
Popis:	To solve the problem of low-frequency noise control in ship cabins, a new membrane-type acoustic metamaterial (MAM) with bulges on the surface of thin films is designed based on the characteristics of lightweight and low-frequency sound insulation of membrane-type acoustic metamaterials. The sound structure coupling module of COMSOL multiphysical field coupling software is used to analyse the sound insulation performance of MAMs. The sound insulation properties of the additional mass film and self-similar fractal convex structure are further discussed. The metamaterial structure studied in this paper has a better sound insulation effect than ordinary film, which provides strong technical support for ship cabin noise control.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::a8f98e04e8445b2b2ef450290f71b779 https://doi.org/10.1088/1757-899x/1210/1/012001 Zobrazit plný text záznamu