基于MD Nastran的船-冰碰撞数值仿真研究

摘要

船舶与海冰的碰撞过程十分复杂，涉及多种非线性问题。文章运用 MD Nastran对船舶艏部与冰的碰撞进行数值仿真计算，来模拟这一过程。得到了碰撞结束后，船首和海冰的损伤变形情况，船体结构的应力应变情况，以及在船—冰相互作用过程中的能量变化，应力应变变化。研究结果描述了船舶与冰碰撞的详细过程，揭示了冰载荷作用下船体结构的响应规律，可为船舶抗冰载荷设计提供参考。%With the opening of the arctic passages, the navigation safety of ships in the region has be-come a significant concern. The interaction of ship-ice is a complex process, which involves a variety of nonlinear problems. This paper describes a numerical analysis to simulate the process between bow and ice collision using MD Nastran and provides the results such as deformation of bow and sea ice, stress and strain of hull structure and components of energy during ship-ice collisions. The research results from the simulations show the detailed process of ship-ice collision, indicate the response of hull structure and provide a significant reference for the design of ship structure under ice loads.