Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/24984
Title: Acoustic performance of a duct loaded with identical resonators
Authors: Wang, X
Mak, CM 
Issue Date: 2012
Source: Journal of the Acoustical Society of America, 2012, v. 131, no. 4, p. el316-el322
Abstract: This paper presents a theoretical study of a duct loaded with identical side-branch resonators. The Bloch wave theory and the transfer matrix method are used to investigate wave propagation in the duct. It is found that this duct-resonator system has a unique attenuation characteristic brought about by structural periodicity. Three types of stop-bands are discussed and their bandwidths are predicted. All of the results predicted by the theory fit well with a computer simulation using a three-dimensional finite element method. Compared to a single resonator, this structure may have a potential application in broadband noise control.
Publisher: Acoustical Society of America
Journal: Journal of the Acoustical Society of America 
ISSN: 0001-4966
EISSN: 1520-8524
DOI: 10.1121/1.3691826
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