螺旋桨载荷预报是进行冰区航行船舶推进器水动力、空泡、噪声、强度等性能方面计算分析的基础和关键，螺旋桨载荷分布的合理性将对冰区船舶的快速性、运动性及安全性等带来严重影响。目前，针对冰载工况下螺旋桨载荷的预报分析技术尚未完善，尤其国内，鲜见相关学术文献。鉴于此，本项目将通过理论推导、数值模拟和模型试验相结合的方式开展冰桨相互作用下的螺旋桨水动力载荷及冰载荷的预报方法研究，具体开展如下研究： 1）建立冰桨干扰数学模型，分析冰运动状态、螺旋桨运转工况、冰桨几何参数等对螺旋桨水动力载荷的影响规律； 2）建立接触工况下的冰桨相互作用数值模型，分析冰桨碰撞条件下冰的运动情况和螺旋桨受力状态； 3）分析不同的冰块形态及冰桨相互作用状态下空泡的分布规律，研究冰载工况下的螺旋桨空泡对桨表面载荷分布规律及幅值变化的影响； 4）通过模型试验研究，形成螺旋桨载荷的试验测定与识别技术，探讨螺旋桨表面的载荷分布特性。

Propeller load prediction is the key to calculation the hydrodynamic performance, strength, cavitation and noise of propeller. While the propeller loads distribution determined the speed, maneuverability and safety of a ship. Until now, the propeller load prediction method for propeller-ice interaction, especially in China, is not perfect and few documents can be found in the area. In view of this, investigation of propeller load prediction under the interaction between ice and propeller will be carried out by a way of combining theoretical analysis, numerical simulation and model test in following four areas: (1) Ice-propeller interaction mathematical model will be developed to analyze the effect of ice moving state, operation of propeller, and the geometric parameter of propeller and ice on propeller hydrodynamic load; (2) Numerical model under Ice-propeller contact condition will be built for analyzing the movement of ice and the forced state of propeller when the collision occurs; (3) Cavitation inception and its distribution will be predicted to discuss the effect of propeller cavitation on the distribution and amplitude variation propeller surface load operating in ice; (4) Experimental measurement and identification technology will be developed and mastered by the model test of propeller load, and the distribution characteristics of propeller surface load will be studied.