Three-dimensional-printed membrane-type acoustic metamaterial for low frequency sound attenuation

被引：40

作者：

Leblanca, Alexandre ^{[1
]}

Lavie, Antoine ^{[1
]}

机构：

[1] Univ Lille, Federat Univ & Polytech Lille, Ecole Mines, Univ Artois,LGCgE,EA 4515, F-62400 Bethune, France

来源：

JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA | 2017年 / 141卷 / 06期

关键词：

ABSORPTION;

D O I：

10.1121/1.4984623

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

Membrane-type acoustic metamaterials have received much attention for low-frequency sound manipulation, especially in the form of decorated membrane resonators. In this paper, such resonators are obtained using fused deposition modeling. Beyond the practical aspects provided by this manufacturing method, the low density of the flexible filament used increases their effectiveness. Indeed, the mass usually added to the membrane center can easily be divided into several disjoint elements. Using rotary inertia of the added structures, new peaks of efficiency in both absorption and normal transmission loss appear when compared to usual decorated membrane resonators. (C) 2017 Acoustical Society of America

引用

页码：EL538 / EL542

页数：5

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