铺管船锚泊定位系统优化设计研究

分析了铺管船锚泊定位系统的结构和它在海洋中的受力情况,研究了锚索悬链状态的特性.提出了锚泊定位系统的二次规划优化算法.目标函数定义为受力锚索的拉力的两两水平力差的平方和,受到线性等式或不等式锚索拉力的约束.求解采用Lagrange乘子法或凸二次规划的互补主元法.用面向对象的VC++工具开发了锚泊定位系统软件.对某铺管船的锚泊定位系统实例进行优化计算,得到满足环境力条件下锚索所承受的力和锚点位置,达到了设计要求.

Study on Design Optimization of Mooring Positioning System for Pipelaying Vessel

The structure of a mooring positioning system for a pipelaying vessel and the forces in this system,as well as characteristics of an anchor cable catenary are studied.And the quadratic programming algorithm is proposed for the optimal design of the mooring system. The object function is defined as the square sum of differences between cables' forces by twos and the constraints are defined with equality and inequality linear equations of cable forces. This problem can be solved with the Lagrange multiplicator method or the complementary pivot method. Mooring system software has been developed successfully, and an actual example of a mooring system optimization for a pipelaying vessel is given and discussed.