【摘要】 应用非连续变形分析(DDA)方法,模拟了海冰与直立结构的动力相互作用过程的模拟.该方法的优点是能将冰对结构的碰撞及冰的破碎过程可视化,同时发生碰撞后结构在每一时间步的响应都可计算出来.数值算例表明,DDA方法进行海冰破碎过程的模拟,比有限元或边界元等方法更为合理和接近实际.更多还原

【Abstract】 Process of dynamic interaction between a sea ice sheet and an erected structure was simulated by discontinuous deformation analysis, which has the advantages that the whole process of collision between the ice and the structure can be shown visually with a series of pictures. Meanwhile, the dynamic response of the structure at each time step after the ice bumping against the structure can be calculated. Numerical example shows that the discontinuous deformation analysis is more effective and reasonable compared with FEM or BEM in simulating dynamic ice-structure interactions. 更多还原