可变周期被动式减摇水舱设计与仿真研究  

Design and simulation investigation of variable period passive anti-rolling tank

作　　者：梁利华 王继铭 宋吉广 李阳[1] LIANG Lihua;WANG Jiming;SONG Jiguang;LI Yang(College of Intelligent Systems Science and Engineering,Harbin Engineering University,Harbin 150001,China)

机构地区：[1]哈尔滨工程大学智能科学与工程学院,黑龙江哈尔滨150001

出　　处：《中国舰船研究》2021年第4期147-154,共8页Chinese Journal of Ship Research

基　　金：工信部高技术船舶科研资助项目(GH2011144)。

摘　　要：[目的]针对半潜船在不同工作状态下横摇周期变化大的特点,设计一种周期可调的被动可控式减摇水舱,通过控制水舱内T型挡板的高度来改变水舱的固有周期,从而达到与船舶横摇周期匹配、较好的减摇效果。[方法]首先,通过计算流体力学软件分析T型挡板布置对水舱固有周期的影响,并对水舱进行优化设计;然后,为了适应半潜船在不同工作条件或不同遭遇频率的海浪,通过自回归(AR)模型对船舶横摇周期进行预报,根据预报的横摇周期调整升起挡板的数量,并对所设计的水舱进行仿真。[结果]仿真结果表明:所设计的水舱能够适应半潜船不同的工作状态,效果良好。[结论]改变T型挡板的数量能够在一定程度上增大水舱的固有周期,并且通过控制挡板可以使其与半潜船横摇周期相匹配,从而更好地适应横摇周期变化较大的船舶,为其提供良好的减摇能力。[Objectives]Aiming at the characteristics of semi-submersible vessels with large roll period changes under different working conditions,a passive controllable anti-roll tank with an adjustable harmonic period is designed.The harmonic period is changed by controlling the height of the T-shaped baffle in the tank,generating a better anti-roll effect that matches the ship's roll period.[Methods]First,the influence of the T-shaped baffle arrangement on the harmonic period of the tank is analyzed though Computational Fluid Dynamics software,and the design of the tank is optimized.Second,in order to adapt to semi-submersible vessels under different working conditions or encountering waves of different frequencies,the auto-regressive(AR)model is used to predict the ship's roll period and adjust the number of raised baffles according to the prediction,on the basis of which the designed water tank is simulated.[Results]The simulation results show that the designed anti-roll tank can adapt to the different working conditions of semi-submersible vessels with positive effects.[Conclusions]Changing the number of T-shaped baffles can increase the harmonic period of the tank to a certain extent,and it can be set to match the roll period of the semi-submersible vessel by controlling the baffles,thereby better adapting to ships with large roll period changes and providing strong antiroll ability.

关 键 词：被动式减摇水舱 可变周期 挡板控制 周期预报 

分 类 号：U661.33[交通运输工程—船舶及航道工程]