Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/35713
Title: Disorder in a periodic Helmholtz resonators array
Authors: Wang, X
Mak, CM 
Keywords: Helmholtz resonator
Periodic structure
Forbidden band
Noise control
Issue Date: 2014
Publisher: Pergamon Press
Source: Applied acoustics, 2014, v. 82, p. 1-5 How to cite?
Journal: Applied acoustics 
Abstract: This paper considers the disorder in a periodic duct-resonator system. The transfer matrix method is used to investigate wave propagation in the duct. Two cases are investigated: the disorder in periodic distance and the disorder in the geometries of Helmholtz resonators. Different from the original attenuation characteristic brought about by pure periodic system, it is found that the disorder in the geometries of resonators with the periodic distance being kept unchanged provides a useful way for the design of such a system to achieve a relatively wide noise attenuation band and to track some narrow noise peaks within it.
URI: http://hdl.handle.net/10397/35713
ISSN: 0003-682X
DOI: 10.1016/j.apacoust.2014.03.002
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