Influence of Ice Cover on the Motion of a Submerged Body

In this work studies the influence of the ice cover on the nature of the motion of a submerged body, depending on its length, cross-sectional area, speed, and submergence. Experimental studies of the submarine vessel models motion under the ice cover are carried out in the ice tank. To determine the influence of the cross-sectional area, relative elongation and displacement of the submarine on the parameters of the generated flexural-gravity waves and the nature of the load movement near the lower surface of the ice, nine models have been made in the form of drop-shaped rotation bodies in the scale λ1=1:120. To conduct the experiments the necessary equipment and measuring system to register vibrations of the modelled ice are designed. By towing the vessel model its velocity and profiles of flexural-gravity waves are determined. The study showed that ice cover can have a significant impact on the nature of the model movement near its lower surface. An increase in the cross-sectional area of the model leads to an increase in values of ice deflections. When the length of the models are increased and the speeds of movement are the same, the efficiency of the ice destruction decreases.