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http://yadda.icm.edu.pl:80/baztech/element/bwmeta1.element.baztech-bec8510b-b156-48f1-9509-61ca81df8694

Czasopismo

Hydroacoustics

Tytuł artykułu

Tracking of the broadband source of the underwater noise in the very shallow water conditions

Autorzy Grelowska, G.  Kozaczka, E. 
Treść / Zawartość
Warianty tytułu
Języki publikacji EN
Abstrakty
EN The paper contains the results, both theoretical and experimental, connected with the tracking of the underwater noise source as small ships, pontoon, diver and so on. The problem of security in the shallow water area is the challenge for underwater acousticians. In this paper there is taken into account the detection of the sources that move on the surface of the sea or underwater in shallow and very shallow water. The main goal deals with characterization of the sound propagation at the shallow water channel. The next problem is formulation of the sound propagation inside of this acoustic duct including normal mode creations and dispersion of the acoustic energy. When we take into account the small ships noise the two main sources are analyzed. The first one is the vibration energy produced by the mechanisms located inside of the ship hull. The acoustical energy is transformed through structural elements of the hull to surrounding water. This energy propagates as broadband underwater noise. The next source is the ship propeller. The sources of the underwater noise give the some deposit to the total acoustical energy that means the ambient noise. The problem that should be solved is to discover these acoustical disturbances along with their classification, identification and tracking.
Słowa kluczowe
EN broadband signals   shallow water   sound propagation  
Wydawca Polskie Towarzystwo Akustyczne. Oddział Gdański
Czasopismo Hydroacoustics
Rocznik 2015
Tom Vol. 18
Strony 77--86
Opis fizyczny Bibliogr. 17 poz., rys., tab.
Twórcy
autor Grelowska, G.
autor Kozaczka, E.
  • Gdańsk University of Technology, Narutowicza 11/12, 80-233 Gdańsk, Poland, kozaczka@pg.gda.pl
  • Polish Naval Academy, Śmidowicza 69, 81-103 Gdynia, Poland
Bibliografia
[1] P. T. Arveson, D. T. Vendittis, ‘Radiated noise characteristics of modern cargo ship’, J. Acoust. Soc. Am. 107 (1) 118-129, (2000).
[2] Committee on Potential Impacts of Ambient Noise in the Ocean on Marine Mammals. ‘Ocean noise and marine mammals’. National Academies Press, Washington, DC, (2003).
[3] G. Grelowska, E. Kozaczka, S. Kozaczka, W. Szymczak, ‘Some aspects of noise generated by a small ship in the shallow sea’, Proceedings of the 11th European Conference on Underwater Acoustics, (2012).
[4] G. Grelowska, E. Kozaczka, S. Kozaczka, W. Szymczak, ‘Underwater noise generated by a small ship in the shallow sea’, Arch. Acoust. 38(3), (2013).
[5] J. A. Hildebrand, ‘Anthropogenic and natural sources of ambient noise in the ocean’, Marine Ecology Progress Series, 395, 5–20, (2009)
[6] E. Kozaczka, ‘Investigations of underwater disturbances generated by the ship propeller’, Arch. Acoust. 13 (2) 133-152, (1978).
[7] E. Kozaczka, ‘Acoustical activity of cavitation bubbles produced by the ship propeller’, Journal of Applied Mechanics, 4, 431-438, (1986).
[8] E. Kozaczka, J. Domagalski, G. Grelowska, I. Gloza, ‘Identification of hydroacoustic waves emitted from floating units during mooring tests’, Polish Maritime Research, 14, 4, 40-46, (2007a).
[9] E. Kozaczka, G. Grelowska, ‘Shipping noise’, Arch. Acoust. 29(2) 169-176, (2004).
[10] E. Kozaczka, G. Grelowska, ‘Shipping low frequency noise and its propagation in shallow water’, Acta Physica Polonica A, Vol. 119, 1009-1012, (2011).
[11] E. Kozaczka, G. Grelowska,, I. Gloza, ‘Sound intensity in ships noise measuring’, Proc. 19th ICA, 6 pp. CD, Madrid, (2007b).
[12] E. Kozaczka, G. Grelowska, S. Kozaczka, W. Szymczak, ‘Diver Observations by Means of Acoustic Methods’, Acta Physica Polonica A, Vol. 123, 6, 1098-1100, 2013.
[13] E. Kozaczka, ‘Propagation of acoustic disturbances in shallow sea’, in ‘Hydroacoustics of shallow water’ edited by E. Kozaczka, G. Grelowska, Polish Academy of Sciences, Warszawa 2013.
[14] D. Ross, ‘Mechanics of Underwater Noise’, Pergamon, New York, (1976).
[15] D. Ross, ‘Ship sources of ambient noise’, IEEE Journal of Oceanic Engineering 30, 257-261 (2005)
[16] L. Tolstoy, C.S. Clay, ‘Ocean acoustics, Theory and experiment in underwater acoustics’, McGraw-Hill Book Company (1966).
[17] R. J. Urick, Principles of Underwater Sound, Chap. 10, Me Graw- Hill, New York, (1975).
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