Authors: O.V. Tarovik, M.A. Kazantsev
Abstract
The article presents the results of the set of experiments in navigation simulator that deal with the 180° turns of double-acting ships in ice. The experiments have been carried out in accordance with a developed program for variable ship sizes, ice thicknesses, total ice concentration, and horizontal sizes of ice floes. Ship types of gas carrier "Christophe de Margerie", tanker "Mikhail Ulyanov" and container ship "Norilskiy Nickel" have been considered. Based on the simulation results, the influence of various parameters of ice and ship on the duration of turning maneuver has been assessed and the regression model for its approximate estimation has been proposed. Validation of this model with the use of full-scale AIS tracks of Arctic transport ships has demonstrated good accuracy. Typical values of the turning maneuver duration range from 0,3 to 1,0 h. The obtained regression equations can be used in modeling of ship operation in the Arctic transport systems, as well as in solutions for optimal ice routing considering different modes of ship movement in ice and corresponding turning processes.
Keywords: ice turning maneuver; double acting ship; navigation simulation; regression model; ship AIS data.
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About authors:
O.V. Tarovik, PhD, Krylov State Research Centre, LLC "Bureau Hyperborea", St. Petersburg
M.A. Kazantsev, Krylov State Research Centre, St. Petersburg
Issue: 68/69 (2022)
For citation: O.V. Tarovik, M.A. Kazantsev. Estimation of the turning maneuver duration of double acting ships in ice using navigation simulation. Research Bulletin by Russian Maritime Register of Shipping. 2022, No. 68/69, pp. 4-19.
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