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.
| Original language | English |
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| Title of host publication | 16th International Congress on Sound and Vibration 2009, ICSV 2009 |
| Pages | 4324-4331 |
| Number of pages | 8 |
| Volume | 7 |
| Publication status | Published - 1 Dec 2009 |
| Event | 16th International Congress on Sound and Vibration 2009, ICSV 2009 - Krakow, Poland Duration: 5 Jul 2009 → 9 Jul 2009 |
Conference
| Conference | 16th International Congress on Sound and Vibration 2009, ICSV 2009 |
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| Country/Territory | Poland |
| City | Krakow |
| Period | 5/07/09 → 9/07/09 |
ASJC Scopus subject areas
- Acoustics and Ultrasonics