In order to provide data reference for ships equipped with anti - rolling tank , based on the item the anti - rolling tank test equipments on the ship among the country 211 key construction projects , the paper goes on deep analysis and research on test platform of tank and motion of rolling and swaying 为了给实船装备减摇水舱提供数据参考，结合国家“ 211 ”工程重点投资建设项目“船舶减摇水舱试验装置”的研制工作，本课题对水舱试验台架及横摇、横荡运动进行了较深入的分析和研究。
Models of electro - hydraulic servo valve , gear - rack swing hydraulic - pressure oil vat and torque sensor are selected in order to analog the rolling moment more accurately . the transfer function of electro - hydraulic moment servo system is presented and the system parameters are gained . at the same time , the simulation of system is studied 为了能更好的模拟海浪作用于船舶的横摇力矩，选取了电液伺服阀、齿轮齿条摆动液压油缸和扭矩传感器的型号，建立了电液力矩伺服系统的传递函数模型，求取了系统参数，并对系统进行了仿真研究。
The author choosed weighting matrix for different sea conditions , designed the controller and the rudder / fin joint control system . finally , the author simulated the controller with matlab . according to the simulation curves and data , we could find that the controller designed using state feedback control theory has nice control performance on rearing and rolling , but the control performance on pitching is not very good 为不同的海情选取了加权阵，求出控制器，完成了船舶舵鳍联合控制系统的设计工作最后，用matlab语言对控制器进行仿真，从仿真曲线和仿真数据可以看出，使用状态反馈h ~控制理论设计出来的控制器对艏摇与横摇有较好的控制效果，而对横荡控制效果不理想，基本达到控制目的。
In the light of the signals of roll angle and water level , we can control the air valve , and use this control method to simulate the controlled passively anti - rolling tank . simulation results indicate that this control strategy is feasible . the controlled passively anti - rolling tank can work in the wide frequency range 控制策略是根据横摇角度和边舱液位信号的变化来对气阀进行控制，采用这种控制策略对可控被动式减摇水舱进行了仿真研究，结果表明所控制策略是行之有效的，可控被动式减摇水舱能在更宽的频率范围内达到较好的减摇效果。
Two electro - hydraulic servo systems analog rolling moment and swaying force of wave respectively . the two systems both use electro - hydraulic servo valves , in which the analog rolling moment system adopts gear - rack swing hydraulic - pressure oil vat with torque sensor , while the analog swaying force system employs double shanks hydraulic - pressure oil vat with a placement sensor 两套电液伺服系统均使用流量电液伺服阀(采用外供油方式) ，其中模拟横摇力矩的伺服系统采用齿轮齿条摆动液压油缸，配有扭矩传感器，模拟横荡力的伺服系统采用双出杆液压油缸，配有一个位移传感器。
Models of electro - hydraulic servo valve , gear - rack swing hydraulic - pressure oil vat , double shanks hydraulic - pressure oil vat , placement sensor and torque sensor are selected in order to analog the rolling moment and swaying force more accurately . transfer functions of electro - hydraulic moment servo system and placement servo system are presented and the system parameters are gained 为了能更好的模拟海浪作用于船舶的横摇力矩和横荡力，选取了电液伺服阀、齿轮齿条摆动液压油缸、双出杆油缸、位移传感器和扭矩传感器的型号，建立了电液力矩伺服系统和位置伺服系统的传递函数模型，求取了系统参数，并对系统进行了仿真研究。
For the dynamic process of ship rolling movement , this paper analyses its dynamic date with time series analysis method and brings up this system ' s the most excellent autoregressive model ( ar model ) according to least aic criterion ( akaile , information criterion ) . it reveals the regular pattern of ship rolling movement and forecasts the future value of roll angle and pitch angle , then transforms it to adjusting value of object and adjusting it according to appropriate control rules 对于船舶摇荡运动这一动态过程，采用时间序列分析的方法，建立系统的自回归模型( ar模型) ，并根据最小aic信息量判定准则保证建立的系统模型为最优化模型。利用参数模型的方式对船舶横摇、纵摇运动的动态数据进行分析处理，揭示船舶摇荡运动的规律，预测船舶横摇角、纵摇角的未来值。
The monitoring system of the controlled passively anti - rolling tank model performance takes charge of control and regular service of anti - rolling tank . accomplishing the hardware design and software programmed of tank control , data acquisition , we process the model test of the controlled passively anti - rolling tank . according to signals of the roll angle and water level , the control system output signals to open or close the valves , and achieve some stabilized effects 本文系统地介绍了可控被动式减摇水舱监控系统的硬件设计和水舱控制、数据采集软件程序实现工作，然后进行了可控被动式减摇水舱进行了模型试验，根据横摇角度和边舱液位的信号变化来控制气阀的开启和关闭，取得了一定的减摇效果。
In general , the upward amplitude curve " curvature is larger , and it changes quicker . on the contrary , the downward is smaller and slower ; because the flare force contains the square of the wave elevation velocity , it results in an difference between the flare force frequence and the associated moving frequence ; the flare force decreases the downward amplitude of heaving oscillations ; the speed of ship has an ignorant effect on the peak values of three calculated values , but there is an obvious effect on the oscillating frequence ; the wave amplitude has an effect on the ship motion , and there is an linear relation between the oscillating amplitude and the wave amplitude on the whole . by the way , there are some experiences and lessons according to the progress calculation : before the calculation of the ship motion , we should checkout the balance in a calm water firstly , namely , the whole displace of ship and the longitudinal position of the center of gravity must be consistent with the draft in calm water , or else , the calculation may show the " floating " phenomenon ; the mixed language programming has a lot of virtues , but it exists a fatal limitation - the debug of dll 研究表明：在某些频率范围内相关水动力系数基本不随吃水变化，只有超过某一频率后水动力系数的值才会出现差异；在横摇方向，水动力系数并没有随着吃水的变化发生规则变化，而是出现了波动现象；近船首剖面的水动力系数计算表明，水动力系数的波动非常大，并远远偏离了平均位置的水动力系数值，值的变化速率也不尽相同，总的看来，上振幅曲线曲率较大，变化较快，下振幅曲线曲率较小，变化较慢；外飘力和波面运动的速度的平方项有关，导致其振动频率和相应运动方向的频率不同；外飘力使升沉向下运动的幅值减小；船速对三个计算量的峰值影响甚微，但对振动频率有明显影响；波幅对船舶运动的影响是明显的，船舶运动的幅值基本上和波幅成线性关系。
