Experimental study of frictional coefficient between model ice and a model ship

Abstract

The importance of frictional resistance has increased for ice-going vessels navigating in the Arctic Ocean because the extent of the sea ice is decreasing more rapidly than predicted. Frictional resistance mainly depends on the frictional coefficient between the ship's hull and the sea ice. It also relies on factors such as the roughness of surface of the hull, the ship's speed, sea ice conditions, floe size, lubrication conditions, and air and sea ice temperatures. In this paper, we studied frictional coefficients between a model ship and model ice to predict frictional resistance at the model test stage. We used various materials with ethylene glycol/aliphatic detergent (EG/AD) model ice to measure the frictional coefficient, and analyzed the results with those of previous studies. In addition, we verified test methods for the frictional coefficient in the test model. Finally, we evaluated the ability of paint containing different amount of matting powder to control the frictional coefficient between the test sample and the model ice.