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Title: Improved acoustical wave propagator technique for acoustic-structure interaction in a duct silencer structure with/without membrane
Authors: Peng, S
Cheng, L 
Huang, L
Peng, Z
Li, L
Issue Date: 2009
Source: 16th International Congress on Sound and Vibration 2009, ICSV 2009, 2009, v. 7, p. 4324-4331
Abstract: In this paper, an improved explicit acoustical wave propagator technique is extended to describe the time- and frequency-domain acoustic wave propagation, and acoustic-structure interaction in a duct silencer structure. Effects of different mesh refinement of Gauss-Lobatto points, configuration of duct silencer structures, and micro-perforated membrane/plate on acoustic-structure interaction are investigated. An error analysis is carried out to evaluate its numerical accuracy and computational efficiency by comparison with an analytical solution. Time-domain analysis of acoustic-structure interaction can accurately and effectively reveal its acoustic characteristics of a duct silencer structure with a flexible membrane/plate. The above analysis provides a deeper understanding of the absorption mechanism leading to noise reduction.
ISBN: 9781615677368
Description: 16th International Congress on Sound and Vibration 2009, ICSV 2009, Krakow, 5-9 July 2009
Appears in Collections:Conference Paper

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