极地冰缘区是极地航行船舶的必经之地，处于海冰与开阔水域交界的部分，受波浪影响最大，近几十年来，随着北极地区的气候变暖显著，冰缘区的范围也在扩大。目前国内外对船舶航行于碎冰及平整冰航道时的航行性能开展了许多研究工作，冰缘区涉及到船舶结构物的研究较少，很多关键性作用机理及规律尚未得到揭示。本项目采用近场动力学（PD）方法与光滑粒子（SPH）法自主编程，并通过模型实验手段进行验证，建立船-碎冰-波浪耦合作用的数值模拟方法。在此基础上，研究碎冰-波浪耦合作用对船舶阻力变化的影响，以及在不同波浪参数及碎冰参数时，各个阻力成分的叠加规律和耦合增阻的变化规律，观察船-碎冰-波浪耦合作用下船舶姿态和碎冰运动轨迹变化以及波浪越流和海冰消波等现象，揭示三者之间的耦合作用关系。上述问题的解决，将有利于细致了解船-碎冰-波浪耦合作用机理，从而为我国冰区船舶的设计和研发提供一定的理论基础及技术支撑

The polar marginal ice zone is a necessary place for ships sailing in the polar region. It is located at the junction of sea ice and open water and is most affected by waves. In recent decades, the extent of the marginal ice zone has also expanded as the climate in the Arctic region has warmed significantly. At present, a lot of research work has been carried out on the navigation performance of ships in ice-breaking and ice-leveling channels at home and abroad. There are few studies on ship structures in the marginal ice zone, and many key mechanisms and laws have not been revealed yet. In this project, the peridynamic method (PD) and the smooth particle method (SPH) are used to self-programming, and the numerical simulation method of ship-wave-ice floe interaction is established and validated by model experiment. On this basis, the influence of the three coupling effects on the ship resistance variation, the superposition law of each resistance component and the variation law of coupling resistance enhancement, the change of ship motion attitude and ice trajectory as well as the principle of wave overflow and sea ice wave elimination at different wave and ice parameters are studied. The solution of the above problems will be helpful to understand the coupling mechanism of ship- ice floe - wave in detail, thus providing theoretical basis and technical support for the design and development of ships in ice areas in China.