重大件货装卸动态仿真系统中船体三维网格自动生成算法

3D grid auto-generating algorithm of ship hull of dynamic simulation system applied to awkward length cargo charging discharging

为了准确描述三维船体图形,应用累加弦长的三次参数样条函数理论,给出了一种船体外表面三角形网格的自动生成算法,该算法不仅可以完成型值表各站型线的等弦长插值,而且能够在沿船长方向的任意位置上进行站的加密.在此基础上,建立了具有高度真实感的重大件货装卸动态仿真系统,并对系统的主要功能做了简单介绍.实践表明,通过该系统可以迅速、准确地提供吊装、绑扎和衬垫等各种装运方案.

In order to describe the real shape of ship hull, a method of three - dimensional triangle grid auto -generation of the ship surface with the accumulative chord length cubic parameter spline is presented in this paper. This algorithm can finish the equal chords length of every station of the ship body plan and can also complete the station interpolation and sophistication at any arbitrary position along the ship length direction. Based on above, a simulation software is developed. The practical result illustrate that the software can provide many plans with rapid and nicety such as lashing and cushion.