The ability of a pilot to reconfigure the control surfaces on an airplane after a failure, allowing the airplane to recover to a safe condition for landing, becomes more difficult with increasing airplane complexity. Techniques are needed to stabilize and control the airplane immediately after a failure, allowing the pilot time to make longer range decisions. This paper shows a design of a discrete multivariable control law using four controls for the longitudinal channel of a B-737. Single control element failures are allowed in three of the four controls. The four controls design and failure cases are analyzed by means of a digital airplane simulation, with regard to tracking capability and ability to overcome severe windshear and turbulence during the aproach and landing phase of flight.


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    Title :

    Reconfigurable Multivariable Control Law for Commercial Airplane Using a Direct Digital Output Feedback Design


    Contributors:

    Publication date :

    1984


    Size :

    55 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English