船舶控制模型的建立及仿真

在给定航空母舰主尺度及线型图的基础上，建立了不同浪向下船舶纵向运动的水动力模型，采用微分方程的最小二乘拟合法，将水动力模型经为一个仅随舰船的航向，航速变化，而与频率无关的控制模型，并对其幅相特性，能控制观性及稳定性加以验证，仿真结果表明了该控制模型是合理的。

Modeling and Simulation of Ship Control System

In this paper,hydrodynamic model of longitudinal movement under different wave directions is established on the basis of the given main dimensions and lines plan of aircraft carrier.By making use of least-squares fit of differential equations,hydrodynamic model is converted into a control model which changes only with speed and heading and have no relation with frequency and the gain phase characteristic,the controllability and observability and the stability are proven.Simulation results indicate that this control method is reasonable.