Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/15843
Title: Sub-chamber optimization for silencer design
Authors: Yu, X
Tong, Y
Pan, J
Cheng, L 
Issue Date: 2015
Publisher: Academic Press
Source: Journal of sound and vibration, 2015, v. 351, p. 57-67 How to cite?
Journal: Journal of sound and vibration 
Abstract: This study proposes sub-chamber optimization for the design of a silencer. A theoretical basis is presented for a description of the overall transmission loss (TL) of the silencer, using the TLs of each of the cascade-connected multiple sub-chambers and the interactions between them. Three typical sub-chamber configurations are considered, representing the effects of varying geometrical parameters, adding internal partitions, and introducing perforated liners. The characteristics of the sub-chambers, influences of the parameters, and the limits of design are investigated to provide guidelines for optimization. It is demonstrated that, by connecting sub-chambers with optimized TLs to tackle different frequency regions, a desired broadband attenuation performance can be achieved. The proposed design scheme with sub-chamber optimization greatly reduces the design variables and calculation costs compared with global optimization, thus offering wider scope in silencer design.
URI: http://hdl.handle.net/10397/15843
ISSN: 0022-460X
EISSN: 1095-8568
DOI: 10.1016/j.jsv.2015.04.022
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