Broadband resonant cavity inside a two-dimensional sonic crystal

被引：5
|
作者：
Alberti, Alejo [1 ]
Gomez, Pablo M. [2 ]
Spiousas, Ignacio [1 ]
Eguia, Manuel C. [1 ]
机构：
[1] Univ Nacl Quilmes, Lab Acust & Percept Sonora, RS Pena 352,B1876BXD, Buenos Aires, DF, Argentina
[2] Univ Buenos Aires, Lab Acust & Electroacust, Av Paseo Colon 850,C1063ACV, Buenos Aires, DF, Argentina
来源：
APPLIED ACOUSTICS | 2016年 / 104卷
关键词：
Composite material; Band-gap; Broadband resonance;
D O I：
10.1016/j.apacoust.2015.10.022
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
A rectangular cavity inside a two-dimensional sonic crystal was theoretically and experimentally characterized by examining its response to a cylindrical source emitting narrow-band filtered noise bursts with central frequencies ranging from 2 to 12 kHz. A broadband intensity resonance was observed for frequencies within the full band-gap region of the sonic crystal (5.5-6.5 kHz). Unlike ordinary resonances, this broadband resonance depends on the reflection properties of the sonic crystal forming the surrounding walls rather than on the geometry of the cavity. (c) 2015 Elsevier Ltd. All rights reserved.
引用
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页码：1 / 5
页数：5
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