Ice field bending due to moment action
https://doi.org/10.30758/0555-2648-2020-66-4-501-514
Abstract
The paper presents an approximate solution to the previously unsolved problem of a semi-infinite ice plate bending under the action of concentrated and distributed moments. It is shown that the load from the moment on the ice field occurs when the latter is affected by significant horizontal forces, whose area of application does not encompass the entire thickness of the ice cover. The need to consider this type of horizontal forces has recently arisen in connection with the consideration of a number of applied problems of marine ice engineering. The interaction of ice with vertical shipboards or those inclined at small angles causes ice failure in the immediate vicinity of the boards under the action of horizontal forces. The paper gives an approximate solution to the problem. The results of calculations show that the concentrated moment is not able to break the ice cover near ship sides. At the same time, the moment distributed over some part of the ice edge may induce such failure. The paper obtains theoretical relations to describe this process approximately.
Supporting agencies: This work was carried out as part of project 0784-2020-0021 supported by the Ministry of Science and Higher Education of the Russian Federation
About the Authors
K. E. Sazonov
Krylov State Research Centre; St. Petersburg State Marine Technical University; Peter the Great St. Petersburg Polytechnic University
Russian Federation
Russian Federation
Kirill E. Sazonov
St. Petersburg
A. A. Simakina
Peter the Great St. Petersburg Polytechnic University
Russian Federation
Russian Federation
Alexandra A. Simakina
St. Petersburg
O. Ya. Timofeev
St. Petersburg State Marine Technical University; Peter the Great St. Petersburg Polytechnic University
Russian Federation
Russian Federation
Oleg Ya. Timofeev
St. Petersburg
References
1. Bernstein S.A. Ledynaya jeleznodorojnaya pereprava. Ice railway crossing. XVIII Sbornik otdela injenernikh issledovany. XVIII volume of Engineering Research Department NKPS. Moscow: Transpechat, 1929: 42 p. [In Russian].
2. Timoshenko S.P., Woinowsky-Krieger S. Plastini i obolochki. Plates and Shells. Moscow: Nauka, 1966: 636 p. [In Russian].
3. Shimansky U.A. Uslovnie izmeriteli ledovih kachest sudna. Conventional gauges of ice qualities of the vessel. Trudy ANII. Proceeding of the ASRI. 1938, 130: 60 p. [In Russian].
4. Maslov A.I. Opit rasheta vnesnih usili, deistvuushih na korpus sudna v ledovih usloviyah. Experience in calculating external forces acting on the hull in ice conditions. Trudy Vsesouznogo nauchnogo injenerno-technicheskogo obshestva sudostroenya VNIITOSS. Proceedings of the All-Union Scientific Engineering and Technical Society of Shipbuilding ASITSSB. 1937, 2 (3): 129-132. [In Russian].
5. Golushkevisch S.S. O nekotiryh zadachah teorii izgiba ledyanovo pokrova. About some problems of the theory of ice cover bending. Leningrad: Voenizdat, 1947: 231 p. [In Russian].
6. Shapiro G.S. Semi-infinity beam on an elastic foundation. Prikladnaya matematica i mehanika. Applied mathematics and mechanics. 1943, 7 (4): 316-320. [In Russian].
7. Kerr A. About the issue of critical bending force for floating plates. Physics and ice mechanics. Ed. Trude P. Moscow: Mir, 1983: 152-164. [In Russian].
8. Nevel D. Bending and bucling of a wedge on an elastic foundation. Physics and ice mechanics. Ed. Trude P. Moscow: Mir, 1983: 272-281. [In Russian].
9. Heisin D.E. The strength of the ice sheet under the action of the load applied to its edge. Trudy ANII. Proceeding of the ASRI. 1960, 237: 133-152. [In Russian].
10. Kashtelyan V.I. Approximation of determination of the ice breaking forces. Problemy Arktiki and Antarktiki. Problems of the Arctic and Antarctic. 1960, 5: 71-76. [In Russian].
11. Ionov B.P., Gramuzov E.M. Ledovaya hodkost sudov. Ship ice speed. St. Petersburg: Sudostroenie, 2001: 512 p. [In Russian].
12. Sazonov K.E. Teoreticheskie osnovi plavaushih sudov vo ldah. The theoretical basis of the navigation of ships in ice. St. Petersburg: CRI named after academician A.N. Krylov, 2010: 274 p. [In Russian].
13. Zuev V.A., Gramuzov E.M., Dvoychenko U.A. Razrushenie ledyanovo pokrova. Material po obmenu opytom. Ice cover destruction. Material for the exchange of experience. Gorkiy: NTO named after academician A.N. Krylov, 1989: 86 p. [In Russian].
14. Enkvist E. On the resistance encountered by ships operating in the continuous mode of icebreaking. Helsinki: The Swedish Academy of Engineering Sciences in Finland, 1972: 181 p.
15. Sazonov K.E. Ledovaya upravlyaemost sudov. Ship handling. St. Petersburg: CRI named after academician A.N. Krylov. 2006: 252 p. [In Russian].
16. Apollonov E.M., Nestrov A.B., Timofeev O.Y. Regulation of ice loads on the vertical side during compression in ice. Nauch-tech. sb. Rossiyskogo morskogo registra sudohodstva. Scientific and technical compilation of the Russian Maritime Register of Shipping. 2008, 31: 129-146. [In Russian].
17. Dobrodeev A.A., Sazonov K.E., Sapershtein I.A. Ship exit from the ice channel. Trudy Krylovskogo Nauchnogo centra. Proceedings of the Krylov Scientific Center. 2020, 2 (392): 24-35. [In Russian].
18. Su B., Riska K., Moan T. A numerical method for the prediction of ship performance in level ice. Cold Reg. Sci. Technol. 2010, 60: 177-188.
19. Myland D., Ehlers S. Influence of bow design on icebreaking resistance. Ocean Engineering. 2016, 119: 217-248.
20. Spravochnik po stroitelnoy mehaniki korablya. Pod red. U.A. Shimansky. Handbook of structural mechanics of the ship. Leningrad: Sudpromgiz, 1958: 628. [In Russian].
Review
For citations:
Sazonov K.E., Simakina A.A., Timofeev O.Ya. Ice field bending due to moment action. Arctic and Antarctic Research. 2020;66(4):501-514. (In Russ.) https://doi.org/10.30758/0555-2648-2020-66-4-501-514
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