Off-Line Comparison of Classical and Robust Flight Simulator Motion Control

This paper presents a comparisonof themotionproducedby a  ight simulatorusing conventionalwashout Ž lters and a novel robust controller. Both approaches are implemented in an off-line MATLABTM/Simulink simulation that includes amodel of an electrically driven synergisticmotion-base  ight simulator. To evaluatethe performance of these motion-base control approaches, the authors simulated the Boeing 747 airliner using a nonlinearmodel of its dynamics. The motion experienced by the aircraft pilot is compared to that experienced by the simulator pilot, using both control approaches. Additionally, the model used for the simulatormotion base is adjusted to represent two different scenarios: a highand a low-Ž delity motion system. It is shown that the two control approaches reasonably track themotion of the aircraft, within the limitationsof the motion base, but that the robust controller is able to compensate for variations in the Ž delity of the motion system.