船舶双水舱减摇系统设计与仿真研究

An improved dual tank anti-rolling system for ships

为了使船舶在固有频率变化时也有好的减摇效果,研究了双水舱减摇系统.使用2个具有不同固有频率的被动式U型减摇水舱能给横稳心高变化范围很宽的船舶提供很好的减摇效果.在建立船舶—双水舱系统模型的基础上,介绍了一种设计双水舱系统的方法,并以一艘滚装船为例,分析设计了一套双水舱系统,并且对装备了单被动式水舱和双被动式水舱的船舶横摇响应进行了仿真分析,通过仿真结果验证双水舱系统相对单水舱系统具有更好的减摇效果.

A dual-tank anti-rolling system is proposed to provide the effective roll reduction when the natural frequencies of a ship change due to loading changes, which uses two passive U-tube anti-roll tanks with distinct natural frequencies to provide very good roll reduction over a wide range of metacentric heights of ships. The design method of dual-tank system was explained. A practical dual-tank system was designed for a special RoRo ship. Simulations were performed for both the passive dual-tank system and the passive single-tank system to compare the responses of ship rolling. The results showed that the dual-tank antiroll system has better anti-rolling performance than the single-tank system.