Study of Influence of The Submarine Vessel’s Form on The Effectiveness of The Ice Cover Failure by Flexural-Gravity Waves
Abstract
The paper is devoted to the experimental and theoretical research of the influence of peculiarities of the form of a submarine vessel (depending on its lengthening and displacement) on the efficiency of breaking ice cover by flexuralgravity waves. The experiments were carried out in a natural fresh-water pond with the following parameters L×B×H = 10×3×1 m using model underwater vessels (a scale of 1:100). The model ice cover of necessary thickness was prepared by natural freezing. The necessary equipment was designed and made for the experiments to be carried out and a measuring complex for registration of deflections of model ice was formed. By towing the model SV its velocity was determined and the profiles of deflections in the ice cover were registered. In the course of experiments the curve caused by flexural-gravity waves was studied, namely the attitude of deflection to the lengths and amplitudes and the possibility of complete destruction of the ice plate. In the theoretical part of the work previously received analytical integral dependence is referred to, to calculate the deflection of the floating plate with rectilinear unsteady motion of a slender and almost axisymmetric body near the water surface. The authenticity of calculations is proved by the comparison of the results with experiments data of ice breaking by flexural-gravity waves. The results show that wave formation in the ice cover and the efficiency of its destruction essentially depend on relative lengthening and displacement of an underwater body as well as on the speed of its motion and the depth of its immersion.
About the Authors
V. L. Zemlyak
Sholom-Aleichem Priamursky State University
Russian Federation
Russian Federation
Birobidzhan
A. V. Pogorelova
Institute of Machining and Metallurgy, FEB RAS
Russian Federation
Russian Federation
Komsomolsk-on-Amur
V. M. Kozin
Institute of Machining and Metallurgy, FEB RAS
Russian Federation
Russian Federation
Komsomolsk-on-Amu
N. O. Baurin
Sholom-Aleichem Priamursky State University
Russian Federation
Russian Federation
Birobidzhan
References
1. Squire V. A. Synergies between VLFS Hydroelasticity and Sea Ice Research. Int. J. Offshore Polar Eng. 2008, 18(4), 241–253.
2. Squire V. A., Hosking R. J., Kerr A. D. Moving Loads on Ice Plates. Kluwer, Academic Publishers, 1996.
3. Sturova I. V. The motion of a submerged sphere in a liquid under an ice sheet. J. of Applied Mathematics and Mechanics. 2012, 76(3), 293–301.
4. Korobkin A. A., Kostikov V. K., Makarenko N. I. The Motion of Elliptic Cylinder Under Ice Cover. Vestnik Novosibirskogo Gosudarstvennogo Universiteta. Seriya Matematika, Mekhanika, Informatika. 2012, 12(4), 76–81.(in Russian).
5. Kozin V. M., Onishchuk A. V. et al. Ice-Breaking Capacity of Flexural-Gravity Waves Produced by Motion of Objects. Vladivostok, Dal’nauka. 2005, 191 p. (in Russian).
6. Kozin V. M., Chizhumov S. D., Zemlyak V. L. Influence Ice Conditions on The Effectiveness of The Resonans Method of Breakinq Ice Cover by Submarines. J. of Applied Mechanics and Technical Physics. 2010, 51(3), 398–404.
7. Kozin V. M., Zemlyak V. L. Safety Emersion of Submarine in Compact Ice Under Shallow. Bezopasnost’ Zhiznedeatel’nosti. 2010, 10, 6–9. (in Russian).
8. Zemlyak V. L., Kozin V. M., Petrosyan G. V. Study of The Possibility of Ascent Submarine Vessels in The Ice Cover at The Limited Water Depth. Vestnik Priamurskogo Gosudarstvennogo Universiteta imeni Sholom-Aleichema. 2013, 13(2), 51–65 (in Russian).
9. Zemlak V. L., Kurbatskiy D. A., Baurin N. O. Laboratory «Ice Technology». Vestnik Priamurskogo Gosudarstvennogo Universiteta imeni Sholom-Aleichema. 2013, 12(1), 75–84 (in Russian).
10. Voytkunsky J. I. Handbook of ship theory. St.-Petersburg, Shipbuilding, 1985. 584 p. (in Russian).
11. Stepanyk I. A. Technologies of Testing and Modeling of Sea Ice. St.-Petersburg, Gidrometeoizdat, 2001. 78 p. (in Russian).
12. Lewis J. W. Recent Development in Physical Ice Modeling. Offshore Technol. Conf. Houston. 1982, 4, 493–498.
13. Pogorelova A. V., Kozin V. M., Zemlyak V. L. Motion of a Slender Body in a Fluid Under a Floating Plate. J. of Applied Mechanics and Technical Physics. 2012, 53(1), 27–37.
14. Kheisin D. E. Dynamics of Ice Cover. Leningrad, Gidrometeoizdat, 1967. 216 p. (in Russian).
Review
For citations:
Zemlyak V.L., Pogorelova A.V., Kozin V.M., Baurin N.O. Study of Influence of The Submarine Vessel’s Form on The Effectiveness of The Ice Cover Failure by Flexural-Gravity Waves. Fundamental and Applied Hydrophysics. 2015;8(2):66-74. (In Russ.)
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