Hydrodynamic moments due to water on ship deck

• Autorzy: Błocki W.
• Konferencja: Conference on Numerical Method in Continuum Mechanics (6 ; 16-18.09.1996 ; Stará Lesná, Słowacja
• Języki publikacji: EN

Abstrakty

EN

An analysis of the ship stability requires computer simulations of the ship motions leading to its capsizing. The large amplitudes of roll motion of the ship are connected with phenomena of immersing of ship deck into water.These phenomena require to take into account additional moments connected with water on a deck. The paper presents a new method (1994) of calculating these additional moments. An approximate and simple calculation of the additional moments is based on the second principle of dynamics applied to an element of a water running off the deck. The additional moments applied in numerical simulations.of the ship motions, change significantly the roll motion. The paper presents results obtained from computer simulations. Some of the results are compared with the results of an experiment done with the ship model.

Słowa kluczowe

EN

hydrodynamic phenomenon; deck; ship

PL

zjawisko hydrodynamiczne; pokład; statek

• Wydawca: Instytut Podstawowych Problemów Techniki PAN
• Czasopismo: Computer Assisted Mechanics and Engineering Sciences
• Rocznik: 1998
• Tom: Vol. 5, nr 2
• Strony: 129--137
• Opis fizyczny: Bibliogr. 18 poz., rys., wykr.

Twórcy

autor

Błocki W.

• Faculty of Ocean Engineering and Ship Technology, Technical University of Gdańsk, 80-322 Gdańsk, ul. Narutowicza 11/12

Bibliografia

• [1] K. Amagai, N. Kimura, K. Ueno. On the Practical Evaluation of Shallow Water Effect in Large Inclinations for Small Fishing Boats. Fifth International Conference on Stability of Ships and Ocean Vehicles, vol. 3, Melbourne, USA, 7-11 Nov. 1994.
• [2] V. Armenio, M. La Rocca. On the Analysis of Sloshing of Water in Rectangular Containers: Numerical Study and Experimental Validation. Ocean Engineering, 23(8): 705-739, 1996.
• [3] V. Armenio, A. Francescutto, M. La Rocca. On the Hydrodynamic Coupling between the Ship Roll Motion and Liquid Sloshing in a Flooded Tank. International $ymposium Ship Safety in a Seaway: Stability, Manoewvrability, Nonlinear Approach, vol. 2, Kaliningrad, 15-19 May, 1995.
• [4] W. Błocki. Ship Safety in Connection with Parametric Resonance of the Roll. Intentional Shipbuilding Progress, 27(306): 36-53, 1980.
• [5] W. Błocki. Probability of Non-Capsizing of a Ship as a Measure of her Safety. Third International Conference on Stability of Ships and Ocean Vehicles, vol. 2, 143-149, Gdańsk, 22-26 Sept. 1986.
• [6] W. Błocki. Ship's Stability Safety in Resonance Case. Fifth International Conference on Stability of Ships and Ocean Vehicles, vol. 4, Melbourne, USA, 7-11 Nov. 1994.
• [7] W. Błocki. Towing Tank Tests of Ship Model in Parametric Resonance (in Polish). Report of Faculty of Ocean Engineering and Ship Technology, Technical University of Gdańsk, nr 558, Gdańsk, 1975.
• [8] J. Dillingham. Motion Studies of a Vessel with Water on Deck. Marine Technology, 18(1): 38-50, 1981.
• [9] J. Dudziak. Prediction of dynamic pressures on the hull of a ship in regular wave (in Polish). Rapport of Centre of Ship Technology, nr B-029, Gdańsk, April 1994.
• [10] Ai-Kuo Lee, B. Adee. Numerical Analysis of a Vessel's Dynamic Responses with Water Trapped on Deck. Fifth International Conference on Stability of Ships and Ocean Vehicles, Melbourne, USA, 7-11 Nov. 1994.
• [11] C.M. Lee, Ki-Han Kim. Prediction of Motion of Ships in Damaged Condition in Waves. Second International Conference on Stability of Ships and Ocean Vehicles, Tokyo, 24-29 Oct. 1982.
• [12] S. Murashige, M. Komuro, K. Aihara. Nonlinear Roll Motion and Bifurcation of a Ro-Ro Ship with Flooded Water in Regular Beam Waves. Third International Workshop on Theoretical Advances in Ship Stability and Practical Impact, Crete, 28-29 Oct. 1997.
• [13] M. Pawłowski. Equations of motion and forces acting on the ship in simulations leading to its capsizing (in Polish), Report of Faculty of Ocean Engineering and Ship Technology, 'Technical University of Gdańsk, nr 66/93, Gdańsk, 1993.
• [14] C. Shin, M. Ohkusu. The Effects of Deck Wetting on the Stability of Ships in Beam Seas. Third International Conference on Stability of Ships and Ocean Vehicles, vol. 2, 189-199, Gdańsk, 22-26 Sept. 1986.
• [15] F. Solaas, O.M. Faltinsen. Combined Numerical and Analytical Solution for Sloshing in Two-Dimensional Tanks of General Shape. Journal of Ship Research, 41(2): 118-129, June, 1997.
• [16] D. Vassalos, G. Conception, L. Letizia. Modelling the Accumulation of Water on the Vehicle Deck of a Damaged Ro-Ro Vessel. Third International Workshop on Theoretical Advances in Ship Stability and Practical Impact, Crete, 28-29 Oct. 1997.
• [17] D. Vassalos, O. Turan. Damage Scenario Analysis: A Tool for Assessing the Damage Survivability of Passenger Ships. Fifth International Conference on Stability of Ships and Ocean Vehtcles, vol. 3, Melbourne, USA, 7-11 Nov. 1994.
• [18] Water Accumulation on the Deck of a Stationary Ship. ŚNAME Ad Hoc Ro-Ro Safety Panel, Annez A. The Society of Naval Architects and Marine Engineers, 8 Feb. 1995.