Abstract
In recent years, aeronautics has witnessed the emergence of increased electrical on board equipment. Today, the reverse thrust, the engine starter, the braking system can operate electrically. The present paper describes the use of a new nose landing gear steering system, using an electromechanical actuator. More specifically, a reduced order H ∞ solution helps to control the actuator and so, to steer the aircraft front wheel. The paper first presents the nose landing gear model coupled with the electromechanical actuator, then discusses the use of the HIFOO tool to synthesize a reduced order controller. Various control strategies are considered, different simulations are proposed and finally, the impact of the controller order is discussed.
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