冰期船舶下水仿真

Ship's launching experiment and simulation under ice age

基于船舶在纵向倾斜船台下水过程,建立冰期船舶下水运动方程,结合模型试验结果应用最小二乘法获得水动力系数和冰力系数,建立数学模型。利用Visual C++结合OpenGL技术开发图形库,设计冰期船舶下水仿真系统,实现船舶冰期下水全过程的运动和力学特性仿真及三维可视化。仿真结果和模型试验结果吻合较好,可应用于船厂的实际生产,也可用于相近船型的仿真。

This paper discuss the process of ship launching on the Longitudinal inclined building berth, and built dynamic equation of ship launching during ice age, combining the result of the model ship we use the least square method to get the coefficient of the dynamic water and the ice, and then we build mathematic model. We use Visual C ＋＋ combining with OpenGL technology to develop the graphics library, design the simulation system of the ship launching during ice condition so that realize the simulation of motion and mechanics characteristic of the whole process and three dimensional visualization. The result of the simulation and the model test are inosculate. It can be used to the real production of the factory,it also can be used to the simulation of the similar ship.