D. Chappell
Dynamical energy analysis for built-up acoustic systems at high frequencies
Chappell, D.; Giani, S.; Tanner, G.
Abstract
Standard methods for describing the intensity distribution of mechanical and acoustic wave fields in the high frequency asymptotic limit are often based on flow transport equations. Common techniques are statistical energy analysis, employed mostly in the context of vibro-acoustics, and ray tracing, a popular tool in architectural acoustics. Dynamical energy analysis makes it possible to interpolate between standard statistical energy analysis and full ray tracing, containing both of these methods as limiting cases. In this work a version of dynamical energy analysis based on a Chebyshev basis expansion of the Perron-Frobenius operator governing the ray dynamics is introduced. It is shown that the technique can efficiently deal with multi-component systems overcoming typical geometrical limitations present in statistical energy analysis. Results are compared with state-of-the-art hp-adaptive discontinuous Galerkin finite element simulations.
Journal Article Type | Article |
---|---|
Acceptance Date | Jul 5, 2011 |
Publication Date | Sep 1, 2011 |
Deposit Date | Feb 12, 2013 |
Publicly Available Date | Nov 16, 2015 |
Journal | The Journal of the Acoustical Society of America |
Print ISSN | 0001-4966 |
Electronic ISSN | 1520-8524 |
Publisher | Acoustical Society of America |
Peer Reviewed | Peer Reviewed |
Volume | 130 |
Issue | 3 |
Pages | 1420-1429 |
DOI | https://doi.org/10.1121/1.3621041 |
Public URL | https://durham-repository.worktribe.com/output/1497414 |
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Copyright Statement
© 2011 Acoustical Society of America. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the Acoustical Society of America. The following article appeared in Chappell, D., Giani, S. and Tanner, G. (2011) 'Dynamical energy analysis for built-up acoustic systems at high frequencies.', Journal of the Acoustical Society of America., 130(3): 1420-1429 and may be found at http://dx.doi.org/10.1121/1.3621041.
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