Email this article Sound attenuation in a random waveguide when using a radiating system with different patterns of directivity
- Authors: Lunkov A.A.1,2, Petnikov V.G.1, Chernousov A.D.1,3
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Affiliations:
- Prokhorov General Physics Institute
- Bauman State Technical University
- AO Andreev Acoustics Institute
- Issue: Vol 81, No 8 (2017)
- Pages: 956-961
- Section: Proceedings of the Russian Academy of Sciences’ Research Board Seminar on Acoustics“Topical Achievements in Acoustics: Achievements in Acoustics 2016”
- URL: https://journals.rcsi.science/1062-8738/article/view/185151
- DOI: https://doi.org/10.3103/S1062873817080214
- ID: 185151
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Abstract
Using numerical simulations of sound propagation on Russia’s shallow Arctic shelf, low frequency sound attenuation is analyzed for acoustic sources with different patterns of directivity, i.e., vertical discrete radiating arrays of different length. It is shown that sound attenuation depends largely on the parameters of patterns of directivity and the intensity of surface waves even at short ranges r from a source (r < 250H, where H is the waveguide depth).
About the authors
A. A. Lunkov
Prokhorov General Physics Institute; Bauman State Technical University
Email: petniko@kapella.gpi.ru
Russian Federation, Moscow, 117942; Moscow, 105005
V. G. Petnikov
Prokhorov General Physics Institute
Author for correspondence.
Email: petniko@kapella.gpi.ru
Russian Federation, Moscow, 117942
A. D. Chernousov
Prokhorov General Physics Institute; AO Andreev Acoustics Institute
Email: petniko@kapella.gpi.ru
Russian Federation, Moscow, 117942; Moscow, 117036
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