Preliminary Modelling of Ship Manoeuvring in Ice Using a PMM

The Institute for Ocean Technology (IOT) of the National Research Council of Canada (http://www.iot-ito.nrc-cnrc.gc.ca/) has conducted physical, numerical and mathematical modeling of ship manoeuvring characteristics in ice, as part of a larger effort to develop reliable modeling techniques to assist in the design of new ice-worthy vessels and in the simulation of their navigating characteristics. This report presents results from a preliminary series of physical and mathematical modeling of the problem. The report focuses on the interaction processes and the influence of ship motions on the yaw moment exerted on the ship hull. The dominant ice-ship interaction processes are identified. The results show a large influence of ship motions and interaction geometry on the measured yaw moments. The geometrical aspect of the interaction processes is described and its influences on ice loads are discussed. Conclusions are made and recommendations for future works are provided.NRC publication: Ye