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Acoustic Response of a Sinusoidally Perturbed Hard-Walled Duct
Joint Authors
Del Giudice, Silvio
Bernasconi, Giancarlo
Source
Mathematical Problems in Engineering
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-11-17
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Abstract EN
Acoustic wave propagation in hard-walled ducts is of interest in many fields including vehicle design, musical instruments acoustics, and architectural and environmental noise-control.
For the case of small sinusoidal perturbation of the cross-section, it is possible to derive simple though approximate analytical formulas of its plane wave acoustic reflection and transmission spectral response that resembles the optical situation of uniform Bragg gratings.
The proof is given here, starting from the “horn equation” and then exploiting the coupled-modes theory.
Examples of the results obtained with these analytical formulas are shown for some sinusoidally perturbed ducts and compared to results obtained through a numerical method, revealing a very good agreement.
American Psychological Association (APA)
Del Giudice, Silvio& Bernasconi, Giancarlo. 2013. Acoustic Response of a Sinusoidally Perturbed Hard-Walled Duct. Mathematical Problems in Engineering،Vol. 2013, no. 2013, pp.1-6.
https://search.emarefa.net/detail/BIM-1008863
Modern Language Association (MLA)
Del Giudice, Silvio& Bernasconi, Giancarlo. Acoustic Response of a Sinusoidally Perturbed Hard-Walled Duct. Mathematical Problems in Engineering No. 2013 (2013), pp.1-6.
https://search.emarefa.net/detail/BIM-1008863
American Medical Association (AMA)
Del Giudice, Silvio& Bernasconi, Giancarlo. Acoustic Response of a Sinusoidally Perturbed Hard-Walled Duct. Mathematical Problems in Engineering. 2013. Vol. 2013, no. 2013, pp.1-6.
https://search.emarefa.net/detail/BIM-1008863
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1008863