Robust two-degree-of-freedom control design for a flight motion simulator

The design of a robust two-degree-of-freedom (2-DOF) controller for a flight motion simulator is presented. Considering the load variation, torque disturbance, high-frequency mechanical resonance, input saturation and tracking precision, the controller is designed including a feedback controller and a feedforward controller to satisfy robust stability and robust performance simultaneously. The computation of the controller is developed applying the mu mu-synthesis theory. Experimental results of time and frequency response within the uncertainty environment indicates the excellent performance of the motion simulator.