摘要
舵是船舶操纵运动的主要控制装置,舵叶转动产生转船力矩从而使船转向来达到控制航向的目的。在舵设计过程中,包括选取舵型,舵面积,展弦比等参数,研究表明,优化展弦比与优化其他舵参数相比,可以更好的改善舵效。本文采用四自由度的船舶运动数学模型,以舵面积和展弦比为优化参数,通过遗传算法对其进行优化选取。仿真结果表明,通过遗传算法的参数优化使船在回转过程中回转半径与稳定外倾的综合控制效果达到最佳。
Rudder is the most important controlling device in ship maneuvering ,with the view of controlling heading, when the ship turn by moment, it is from rudder blade turning. Many parameters are involved in rudder design such as rudder＇s shape, area, aspect ratio. Research shows that the increasing of rudder aspect ratio is the best option to receive highest performance of rudder than any other change of rudder parameters. In this research, four degrees of freedom motion mathematical model about a ship is built, the area and the aspect ratio as an optimal parameter is optimized by genetic algorithm. The result of simulation indicates that the optimal parameter make the effect of turning radius and heel to be the best by genetic algorithm.
出处
《自动化技术与应用》
2012年第12期11-15,共5页
Techniques of Automation and Applications
关键词
舵
操纵性
遗传算法
参数优化
rudder
maneuvering
genetic algorithm
parameter optimation
