多目标遗传算法在水面船舶快速性优化设计中的应用

在船舶设计中,船、机、桨的匹配问题一直是设计人员最关注的问题之一.快速性良好的船舶应使得船、主机和螺旋桨之间的性能综合匹配.通过采用改进的非支配解排序的多目标遗传算法,讨论了船舶概念设计阶段快速性优化问题.以推进系统综合效率和排水量为优化目标,考虑了混合变量的多目标优化问题.文中给出了载重量为35000t油船的快速性优化设计例子.结果表明,多目标遗传算法能够快捷搜索到全局最优解.

Application of multi-objective genetic algorithm to the optimal and fast design of surface ship

The match of ship,engine and propeller is one of the most important problems in ship conceptual design.To a ship with good speediness,the performances of ship,main engine,and propeller must match each other.This paper discusses the optimal problem of ship conceptual design by using improved Non-dominated Sorting Genetic Algorithm II.The objectives are hybrid efficiency ratio of propulsion system and displacement of ship.Taking a 35 000 t tank ship as an example,the optimal result shows that the multi-object...