Comparison between measured and calculated underwaterpressure of merchant ship

• Autorzy: Bielański J. , Listewnik K.
• Języki publikacji: EN

Abstrakty

EN

From 2012 The Polish Naval Academy take part in an international research project SIRAMIS, carried out in the framework of the European Defence Agency. The objective of this project is to improve the understanding of ship signature interaction with multi influence sensors in relevant and realistic scenario's. This paper describes selected results of the comparison results of sea trials and model calculations of the hydrodynamic field distribution around a moving ship in selected waters of The Gulf of Gdansk. Despite the good results of the comparison of calculations and measurements of pressure signature on the example of a passenger ship, some measurements deviate significantly from the theoretical results. Due to the lack of reproducibility of these deviations may be due to errors in reading real position of underwater measurement modules. This comparison allows increasing the reliability of theoretical calculations by the results of measurements, and it is expected that the development of this method allows determining the parameters of the pressure under the hull at any point situated at a distance of not more than 1 meter from the seabed.

Słowa kluczowe

EN

pressure siganture of ship; underwater pressure calculation; underwater pressure masurement; comparision underwater pressure of ship

• Wydawca: Polskie Towarzystwo Akustyczne. Oddział Gdański
• Czasopismo: Hydroacoustics
• Rocznik: 2015
• Tom: Vol. 18
• Strony: 7--16
• Opis fizyczny: Bibliogr. 7 poz., rys., tab.

Twórcy

autor

Bielański J.

• Gdansk University of Technology, Narutowicza 11/12, 80-233 Gdansk, Poland

autor

Listewnik K.

• Polish Naval Academy, Śmidowicza 69,81-103, Gdynia

Bibliografia

• [1] K. Listewnik, I. Gloza, J. Bielański, R. Józwiak, Pressure signature analysis - Final report of EDA SIRAMIS Project, Gdynia, 2014.
• [2] I. Gloza, K. Buszman, K. Listewnik, The passive module for underwater environment monitoring, Proceedings of 11th European Conference on Underwater Acoustics ECUA 2012, pp. 1787-1793 Edinburgh, UK, 2012.
• [3] K. Listewnik, Underwater noise generated by merchants ships in coastal waters of the Gulf of Gdansk, Proceedings of 43rd International Congress on Noise Control Engineering INTER-NOISE 2014, pp. 4184-4190, Melbourne, Australia, 2014.
• [4] J. Bielański, Signature of hydrodynamic pressure field, Hydroacoustics, vol. 15, pp. 13- 20, Gdansk, 2012.
• [5] J. Bielański, The hydrodynamic pressure field of the ship Zodiak, measurements and calculations, Hydroacoustics, vol. 17, pp. 17-28, Gdansk, 2014.
• [6] S. S. Rao, The Finite Element Method in Engineering, 3rd ed., Butterworth Heinemann, Boston, 1999.
• [7] O. C. Zienkiewicz, and Taylor, R. L., The Finite Element Method, 4th ed., Vol. 1, McGraw-Hill, London, 1989.