A point-mass model of the OH-58A helicopter has been used to ascertain the autorotation profiles which minimize helicopter impact velocity while remaining within the bounds of the main rotor's collective pitch and angular speed. The optimal control strategies are comparable to those employed by pilots in autorotational landings. It is noted that a possibility exists for the reduction of the height-sink rate restriction zone of OH-58A helicopters, using optimal energy-management techniques.


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    Title :

    Optimal autorotational descent of a helicopter with control and state inequality constraints


    Contributors:


    Publication date :

    1990-10-01



    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English