Identification of hydro-acoustic waves emitted from floating units during mooring tests

• Autorzy: Kozaczka E. , Domagalski J. , Grelowska G. , Gloza I.
• Języki publikacji: EN

Abstrakty

EN

Measurements of hydro-acoustic noise emitted from vessels are a.o. a subject of the tests carried out in the control measurement ranges of the Navy. The measurements are performed both on anchored and floating vessels. Acoustic field of vessels is changing along with their speed changing and is associated with acoustic activity of wave sources installed in vessel’s hull (main engines, electric generating sets, reduction gears, pumps, shaft-lines, piping, ventilating ducts etc) as well as hydro-dynamic sources such as screw propellers and water flow around the hull [5, 7]. Vibration energy generated by the onboard devices is transferred through ship structural elements to water where it propagates in the form of hydro-acoustic waves of a wide frequency band.

Słowa kluczowe

EN

identification; propagation; hydroacoustics

• Wydawca: Gdańsk University of Technology, Faculty of Ocean Engineering & Ship Technology
• Czasopismo: Polish Maritime Research
• Rocznik: 2007
• Tom: nr 4
• Strony: 40--46
• Opis fizyczny: Bibliogr. 7 poz., rys., tab.

Twórcy

autor

Kozaczka E.

autor

Domagalski J.

autor

Grelowska G.

autor

Gloza I.

• Faculty of Ocean Engineering and Ship Technology Gdansk University of Technology Narutowicza 11/12, 80-952 Gdansk, POLAND,

Bibliografia

• 1. Cempel Cz. : Applied vibro-acoustics (in Polish). State Scientific Publishing House (PWN), Warszawa 1989
• 2. Baranowska A Gloza I.: Identification of underwater disturbance sources with the use of coherence function (in Polish). Materiałs of 48th Open Seminar on Acoustics, Wrocław 2001.
• 3. Gloza I., Malinowski S. : Identification of ship’s underwater noise sources in the coastal region, Hydroacoustics, Vol. 5/6, 2003.
• 4. Gloza I., Domagalski J., Malinowski S. : Identification of sources of ship’s hydro-acoustic field in a close surrounding (in Polish). Materiałs of 49th Open Seminar on Acoustics, Warszawa-Stare Jabłonki 2002.
• 5. Grelowska G., Bittner P., Gloza I.: Experimental research on noise generated by ship in motion (in Polish). Materials of 9th Symposium on Hydroacoustics, Gdynia - Jurata, 1992.
• 6. Kozaczka E., Kiciński W., Nyszko G.: Identifying investigations of acoustic signals emitted to water (in Polish), Phase II, IV. Research reports, Gdynia 1995.
• 7. Urick R. J. : Principles of Underwater Sound. Mc Graw – Hill, New York 1975