基于GPC的气控被动式减摇水舱研究  

Research on Pneumatical-passively-controlled Tank Stabilizers Based on GPC Strategy

作　　者：金鸿章[1,2] 张宏瀚[1] 

机构地区：[1]哈尔滨工程大学自动化学院,哈尔滨150001 [2]船舶控制工程教育部工程研究中心,哈尔滨150001

出　　处：《中国造船》2010年第4期67-75,共9页Shipbuilding of China

基　　金：国家自然科学基金(50879012);"211工程"先进船舶减摇技术重点资助项目

摘　　要：在建立减摇水舱内气体和液体两相流动的运动模型基础上,研究了水舱顶部气体连通道的截面面积大小与水舱内液体振荡参数之间的关系。利用广义预测控制(Generalized Predictive Control,GPC)对水舱内液体运动参数进行在线滚动寻优计算,并通过调节截面开口大小实现参数的调节,以此控制水舱内液体的流动,使之与船舶横摇运动相适应,对抗外部海浪干扰。仿真研究表明,与传统的开关式气阀控制策略相比,新的控制策略可以明显提高被动可控式减摇水舱的减摇效果,在较宽的频率范围内对船舶进行有效减摇。A mixed motion model of air flow and liquid flow was established in the paper. On the basis of the model, relationship between the sectional area of air duct and liquid flow characteristics was researched. The optimized parameters of fluid motion were calculated by utilizing GPC strategy and controlled by turning the section area of air duct. In this way, the liquid flow can be controlled to offset the wave disturbance with the time varying of the ship-rolling model. Simulation studies show that the novel strategy can achieve more effective roll reduction in extended frequencies compared with tradational bang-bang control strategy.

关 键 词：船舶 舰船性能 减摇水舱 气阀控制 广义预测控制 开关控制 可控被动式控制 

分 类 号：U661.32[交通运输工程—船舶及航道工程]