舵和艉鳍对超大型集装箱船操纵性的影响

Effect of Rudder and Skeg on Maneuverability of ULCS

以某超大型集装箱船为研究对象,针对不同侧面舵型、舵面积和艉鳍方案,基于自由自航模试验方式进行船舶模型Z形操纵试验和回直试验,研究舵和艉鳍对超大型集装箱船K指数、T指数和剩余角速度变化的影响,分析其回转性、跟从性和航向稳定性。研究结果表明:梯形侧面舵型的回转性能优于矩形侧面舵型,舵面积增大有利于增强船舶的回转性能;艉鳍的增加有利于增强船舶的稳定性能。

The Zigzag maneuvering tests and the pull-out tests of an ULCS(Ultra Large Container Ship) model are carried out with the free running method. The index K/T and residual angular velocity calculated according to different rudder and skeg designs are used to study the rotation, compliance and heading stability of the ULCS. The study shows that the turning performance of the trapezoidal rudder is better than that of rectangular rudder. The increase of the rudder area is beneficial to enhance the ship’s turning performance. Besides, the better stability performance can be seen when the skeg attached to the ship.