文档介绍：双水舱减摇系统的减摇原理研究
[ 作者:Admin     来源:博景源     点击数: 855     更新时间:2007-3-17   ]
摘要
减摇水舱是应用最广泛的船舶减横摇装置之一,它特别适用于经常工作在零航速或低航速的船舶减摇,如车客轮渡、滚装船和科学考察船等。减摇水舱按结构形式可分为U型减摇水舱和槽型减摇水舱,而U型减摇水舱可以设计成被动式、主动控制式和可控被动式三种。使用两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。本文根据拉格朗日动力学方程建立了船舶–可控被动式减摇水舱系统的数学模型。并推导了装备两个具有不同固有频率的被动式U型减摇水舱的船舶横摇频率响应函数,分析了影响船舶横摇频率响应幅值的水舱参数,通过仿真详细研究了水舱参数对船舶横摇减摇效果的影响。分析了U型减摇水舱在船舶中的垂向布置对船舶横摇响应的影响,介绍了U型减摇水舱尺度设计,并通过MATLAB仿真设计一个安装于RORO船上的双水舱系统,验证双水舱系统的减摇效果。
关键词:减摇水舱;双水舱系统;数学模型;水舱参数;尺度设计;仿真
ABSTRACT
The anti-rolling tank is one of the most popular used stabilizing equipments, and it fits for ships working at zero speed or low speed such as passenger and train ferry, roll-off vessel, research and exploration vessel and so on in particular. It can be classified as U-tube tank stabilizer and flume anti-rolling tank according to structural configuration, and the former has three types, namely passive, active control and controlled passive tank in terms of the control mode. To use two passive U-tube anti-rolling tanks with different natural frequencies can provide very good rolling reduction over a wide range of metacentric height of ship. According to the Lagrange dynamics equation of motion, a mathematical model of the ship-controlled passive anti-rolling tank system is developed. And ship rolling frequency response function with two U-tube anti-rolling tanks with different natural freq