There is proposed an adaptive sliding controller in task space on the base of the linear Newton-Euler dynamic equation of motion platform in a six-DOF flight simulator. The uncertain parameters are divided into two groups: the constant and the time-varying. The controller identifies constant uncertain parameters using nonlinear adaptive controller associated with elimination of the influences of time-varying uncertain parameters and compensation of the external disturbance using sliding control. The results of numerical simulation attest to the capability of this control scheme not only to, with deadly accuracy, identify parameters of motion platform such as load, inertia moments and mass center, but also effectively improve the robustness of the system.
Wu presented a nonlinear adaptive sliding mode controller for a six DOF flight simulator, REF where the adaptive controller was utilized to identify the constant parameters while the sliding mode unit is used to deal with time-varying uncertain parameters.
Adaptive Sliding Control of Six-DOF Flight Simulator Motion Platform
Chinese Journal of Aeronautics
Mathematics