The backstepping adaptive sliding mode control for the flight simulator servo system

Chattering is inevitable when adopting the sliding mode control to control nonlinear system and inhibiting the chattering becomes the research emphasis. This paper introduces a backstepping adaptive sliding mode control scheme which can solve the uncertain problems in nonlinear system and meanwhile can ensure the robustness of system. The backstepping design principle is firstly introduced. Chattering is effectively reduced by introducing sliding mode control into inverse design and adopting adoptive algorithm to estimate the uncertainty. In the end, a practical example controlled by the scheme is presented and the result indicates the effectiveness of the scheme.