Noise control zone for a periodic ducted Helmholtz resonator system

被引：36

作者：

Cai, Chenzhi ^{[1
]}

Mak, Cheuk Ming ^{[1
]}

机构：

[1] Hong Kong Polytech Univ, Dept Bldg Serv Engn, Kowloon, Hong Kong, Peoples R China

来源：

JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA | 2016年 / 140卷 / 06期

关键词：

WAVE-PROPAGATION; ARRAY; TRANSMISSION;

D O I：

10.1121/1.4968530

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

This paper presents a theoretical study of the dispersion characteristics of sound wave propagation in a periodic ducted Helmholtz resonator (HR) system. The predicted result fits well with a numerical simulation using a finite element method. This study indicates that for the same system, no matter how many HRs are connected or what the periodic distance is, the area under average transmission loss (TL) over bar curves is always the same. The broader the noise attenuation band, the lower the peak attenuation amplitude. A noise control zone compromising the attenuation bandwidth or peak amplitude is proposed for noise control optimization. (C) 2016 Acoustical Society of America

引用

页码：EL471 / EL477

页数：7

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