Sliding mode controller design for position and speed control of flight simulator servo system with large friction

Flight simulator is an important device and a typical high-performance position and speed servo system for the hardware-in-the-loop simulation of flight control system. Friction is the main nonlinear resistance in the flight simulator servo system, especially in a low-speed state. Based on the description of dynamic and static models of a nonlinear Stribeck friction model, this paper puts forward a sliding mode controller to overcome the friction, whose stability is proved. Simulation example indicates that the controller can guarantee high robust performance and have high precision of position tracking and speed tracking for flight simulator servo system.