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Polar sailing ships employ continuous and ramming operations to break ice when sailing in the Arctic or Antarctic waters. Upon encountering ice above a certain thickness, including icebergs and ice ridges, ramming methods are employed. The ship sailing performance while ramming ice is difficult to predict under complex ice conditions. To provide an accurate prediction of the ship sailing performance during the ramming operation under thick level ice conditions, we constructed a model ship in an ice tank to simulate a polar scientific research ship ramming thick ice. The nondimensional numbers were analysed to determine the ramming capacity of the ship. The experimental results show that the navigation performance of a ship is related to the ramming speed, and the ship penetration distance and local load increase linearly with the ship speed. Improvements for future ship design are proposed based on the results obtained in this study.

Predicting ship ramming performance in thick level ice via experiments