Analysis and Modelling on Radiated Noise of a Typical Fishing Boat Measured in Shallow Water Inspired by AQUO Project’s Model

• Autorzy: Peng Z. , Fan J. , Wang B.

Identyfikatory

DOI

10.24425/122374

• Języki publikacji: EN

Abstrakty

EN

The shipping noise near channels and ports is an important contribution to the ambient noise level, and the depth of these sites is often less than 100 m. However less attention has been paid to the measurement in shallow water environments (Brooker, Humphrey, 2016). This paper presents extensive measurements made on the URN (underwater radiated noise) of a small fishing boat in the South China Sea with 87 m depth. The URN data showed that the noise below 30 Hz was dominated by the background noise. The transmission loss (TL) was modelled with FEM (finite element method) and ray tracing according to the realistic environmental parameters in situ. The discrepancy between the modelled results and the results using simple law demonstrates both sea surface and bottom have significant effect on TL for the shallow water, especially at low frequencies. Inspired by the modelling methodology in AQUO (Achieve QUieter Oceans) project (Audoly et al., 2015), a predicted model applied to a typical fishing boat was built, which showed that the URN at frequencies below and above 100 Hz was dominated by non-cavitation propeller noise and mechanical noise, respectively. The agreement between predicted results and measured results also demonstrates that this modelling methodology is effective to some extent.

Słowa kluczowe

EN

radiated noise; South China Sea; predicted model; shallow water; transmission loss

• Wydawca: Instytut Podstawowych Problemów Techniki PAN ; Komitet Akustyki PAN ; Polskie Towarzystwo Akustyczne
• Czasopismo: Archives of Acoustics
• Rocznik: 2018
• Tom: Vol. 43, No. 2
• Strony: 263--273
• Opis fizyczny: Bibliogr. 27 poz., fot., rys., tab., wykr.

Twórcy

autor

Peng Z.

• Shanghai Jiao Tong University, Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration, State Key Laboratory of Ocean Engineering, Shanghai 200240

autor

Fan J.

• Shanghai Jiao Tong University, Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration, State Key Laboratory of Ocean Engineering, Shanghai 200240

autor

Wang B.

• Shanghai Jiao Tong University, Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration, State Key Laboratory of Ocean Engineering, Shanghai 200240

Bibliografia

• 1. Ainslie M. A. (2010), Principles of sonar performance modelling, Springer.
• 2. ANSI/ASA (2009a), ANSI S1.11, Specification for octave-band and fractional-octaveband analog and digital filters.
• 3. ANSI/ASA (2009b), S12.64-2009/Part 1 (R2014), Quantities and Procedures for Description and Measurement of Underwater Sound from Ships – Part 1: General Requirements.
• 4. Audoly C., Rizzuto E. (2015), Ship underwater radiated noise patterns, AQUO European Collaborative Project, Deliverable D2.1.
• 5. Audoly C., Rousset C., Rizzuto E., Mullor R. S., Hallander J., Baudin E. (2015), Mitigation measures for controlling the ship underwater radiated noise, in the scope of AQUO Project, [in:] OCEANS 2015-Genova, pp. 1-6.
• 6. Board O. S., (2003), National Research Council. Ocean noise and marine mammals, National Academies Press.
• 7. Breeding J. E., Pflug L. A., Bradley M., Hebert M., Wooten M. (1994), RANDI 3.1 User’s Guide (No. NRL/MR/7176–94-7552), Naval Research Lab Stennis Space Center MS.
• 8. Breeding Jr, J. E., Pflug L. A., Bradley M., Walrod M. H. (1996), Research Ambient Noise Directionality (RANDI) 3.1 Physics Description (No. NRL/FR/7176–95-9628), Naval Research Lab Stennis Space Center MS.
• 9. Brooker A., Humphrey V. (2016), Measurement of radiated underwater noise from a small research vessel in shallow water, Ocean Engineering, 120, 182-189.
• 10. Coward S. (2013), A method for remote sensing of acoustic ship noise, Master’s Thesis, Norwegian University of Science and Technology, http://hdl.handle.net/11250/23709.
• 11. Coward S., Tollefsen D., Dong H. (2013), Radiated ship noise level estimates from measurements in a fjord, The Journal of the Acoustical Society of America, 134, 5, 4150-4150.
• 12. Grelowska G., Kozaczka E., Kozaczka S., Szymczak W. (2013), Underwater noise generated by a small ship in the shallow sea, Archives of Acoustics, 38, 3, 351-356.
• 13. Hamilton E. L. (1980), Geoacoustic modeling of the sea floor, The Journal of the Acoustical Society of America, 68, 5, 1313-1340.
• 14. Hamson R. M. (1994), Sonar array performance prediction using the RANDI-2 ambient noise model and other approaches, BAeSEMA Report B 1277/TR-1.
• 15. Hamson R. M. (1997), The modelling of ambient noise due to shipping and wind sources in complex environments, Applied Acoustics, 51, 3, 251-287.
• 16. Jensen F. B., Kuperman W. A., Porter M. B., Schmidt H. (2011), Computational ocean acoustics, Springer Science & Business Media.
• 17. Kapolka D., Wilson J. K., Rice J. A. et al. (2008), Equivalence of the waveguide invariant and two path ray theory methods for range prediction based on Lloyd’s mirror patterns, Proceedings of Meetings on Acoustics, 4, 1, 6269-6273.
• 18. Kozaczka E., Grelowska G. (2004), Shipping noise, Archives of Acoustics, 29, 2, 169-176.
• 19. Li J. B. (2012), Regional Oceanography of China Seas Marine Geology, China Ocean Press, Beijing.
• 20. Ocean noise and marine mammals (2003), Edited by Ocean Studies Board, National Academies Press (US), Washington (DC).
• 21. Ross D. (1987), Mechanics of underwater noise, Elsevier.
• 22. Shepard F. P., Emery K. O., Gould H. R. (1949), Distribution of sediments on East Asiatic Continental shelf, University of Southern California Press.
• 23. Urick R. J. (1983), Principles of underwater sound, McGraw-Hill, New York.
• 24. Wales S. C., Heitmeyer R. M. (2002), An ensemble source spectra model for merchant ship-radiated noise, The Journal of the Acoustical Society of America, 111, 3, 1211-1231.
• 25. Wenz G. M. (1962), Acoustic ambient noise in the ocean: spectra and sources, The Journal of the Acoustical Society of America, 34, 12, 1936-1956.
• 26. Weston D. E. (1971), Intensity-range relations in oceanographic acoustics, Journal of Sound and Vibration, 18, 2, 271-287, https://doi.org/10.1016/0022-460X(71)90350-6.
• 27. Wittekind D. K. (2014), A simple model for the underwater noise source level of ships, Journal of Ship Production and Design, 30, 1, 1-8.

Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).