Shi Xiao-cheng

Research on heading control of Air Cushion Vehicle

Air cushion vehicle (ACV) is a type of high performance watercraft. ACV can be propelled forward over the water, the ground and swale. It is widely used in both the civilian and military. Its operation is very different from general ships because of the structural particularity. We designed PID controller and neural net (NN) controller used for ACV heading control. Simulation results show that NN controller performs better than normal PID controller in heading control of ACV, especially when ACV is disturbed by wind.

Output feedback control for dynamic positioning vessels using nonlinear observer backstepping

A horizontal 3 degree-of-freedom(DOF) ship model and environment model are established. Passive nonlinear observer which is extended to include more nonlinear terms of damping and Coriolis matrix is proposed, observer is used to filter the wave induced high frequency motion and give the state variable estimations. Then backstepping control method based on observer estimated values is obtained. The Global Uniformly Stability properties of observer-controller system are analyzed by applying Lyapunov stability theory. Simulation about a surface DP vessel is carried on to verify the performance of the entire guidance-control system.

Simulation study of plane motion of air cushion vehicle

This research is on horizontal plane motion equations of Air Cushion Vehicle (ACV) and its simulation. To investigate this, a lot of simulation study including ACV’s voyage and turning performance has been done. It was found that the voyage simulation results were accorded with ACV own characteristic and turning simulation results were accorded with USA ACV’s movement characteristic basically.

The advanced integrated control and display system of the manned submarine

The manipulations of the manned submarine influence the submarines performance directly. This paper introduces a kind of integrated control and display system for a deep-diving submarine. This system realizes the submarines motion controls of keeping given heading, depth and speed. The information of submarines condition is displayed on CRT synthetically and dynamically. The system has a good man-machine interface, which is very convenient for operating. The fine test result of the system had been obtained. The advanced integrated control and display system has been delivered to the user.