It has been proved that this kind of tank is applicable of multifold boats , which not only reduces the roll angle and the heel angle , but also improves the efficient and fall the transport cost . the controlled passively anti - rolling tank can elevate the comfort and safe of the boats 实践表明，该水舱适用于多种类型船舶，不仅能减小船舶在波浪中的横摇和抵抗静倾角，还可以提高装卸效率，减少运输成本，为改善船舶的舒适性和安全性开辟了有效途径。
But the influence trend of the maximum rolling angle and the rolling period was not so simple , it was because the influence of which embodied in the phase relationship of mass flow and the pressure drop across the tube . the d - partition method was developed to separate the test tube into four regions and the drift flow model was imported into the two phase region , based on which the solution of the response of the pressure drop of tested tube to the inlet mass flow perturbation can be obtained 在不摇摆和摇摆工况下，采用d分区法对实验段进行分区，在两相区采用漂移流模型对实验段的压降对入口流速扰动的响应进行了求解，给出了各区压降响应的表达式，进而得到了在不摇摆和摇摆工况下，压降与入口流速扰动之间的传递函数。
This paper applies ittc single - parameter ocean wave spectrum to simulate a random long - crested ocean wave according to statistics superposition theory and real - time simulate disturbance on the ship by random wave . it simulates roll and pitch of the ship in random wave in the time domain and gains roll angle ( t ) and pitch angle ( t ) signal of ship rolling movement 本文根据统计叠加理论，采用ittc单参数标准海浪谱仿真模拟实际的长峰波随机海浪，进而实时仿真长峰波随机海浪对船舶的随机扰动，对船舶在海浪中的横摇和纵摇运动进行了时域仿真，得到船舶摇荡运动的横摇角信号( t )和纵摇角信号( t ) 。
The effects of pitch angle , rolling angle , pad velocity , rotation speed and standard nominal clearance on load and moments were obtained by analyzing the numerical results , and the effects of external load , external moments ( x - axis and y - axis ) , rotation speed and pad velocity on fluid pressure distribution , on tilt angles , azimuth angle and standard nominal clearance are further studied . the reason for the existence of negative pressure in ctp and its effect on the polishing result was discussed . it is proved that ctp can achieve the best 通过对仿真结果的分析,给出了工件倾角、转角、抛光速率、角速度及中心膜厚等主要研抛参数变化时工件的承载能力变化,也即压力积分载荷、压力转矩的变化;分析了外加载荷、 x / y轴转矩、抛光速率、角速度变化对加工过程中工件偏转角、方位角及中心膜厚的影响;讨论了全膜接触模型中负压产生的原因及对研抛结果的影响。
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。
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。
The nonlinear decoupling method applied on full , hi - fidelity aircraft analysis model was unprecedented , many technique , such as disassemble - design , assemble - apply , multi - grade decoupling , were used so that the nonlinear decoupling method can be used on such a complex model . the successful design of a roll angle and overload decoupling controller show that the nonlinear decoupling is a feasible method for engineering application 非线性解耦方法在高真实度的完整飞机系统分析模型上的应用在国内尚属，文中采用分解设计、组合应用、多级解耦控制结构等方法，解决了非线性解耦方法难于应用于复杂系统的问题，成功地设计了滚转角及过载解耦控制器，达到了较好的控制效果，为工程设计提供了新的途径。
