Research on cumulative damage of ship-ice collisions considering ice attachment to the outer hull
Research has been conducted on the cumulative damage caused by ice loads resulting from collisions between polar merchant ships and large areas of fragmented ice using numerical simulation methods.A cellular automaton was employed to randomly generate fragmented ice in the region.The study considered the dynamic response of ship-ice col-lisions with the influence of ice adhering to the ship's outer hull.The results indicate that,in this scenario,the plastic strain and energy absorption of the ship's outer plate significantly decrease.The peak collision force does not change significantly,but the impulse of the collision force decreases significantly.When polar vessels navigate with ice adhering to their outer hull,it is advantageous for the structural strength of the ship concerning cumulative damage from ship-ice collisions.
ship-ice collisionships in icy regionsnumerical simulation
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