The reduction or alleviation of helicopter vibration will reduce maintenance requirements while at the same time increase ride quality and helicopter reliability. In forward flight, the helicopter's fuselage vibration spectrum tends to be dominated by multiples of the N/REV component. A way to use the method of adaptive inverse control to identify, in real-time, a controller capable of generating N/REV vibration of opposite phase to cancel the uncontrolled N/REV component is presented. Multicyclic feathering of blade pitch is the control considered.


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    Title :

    Adaptive inverse control for helicopter vibration reduction


    Contributors:

    Publication date :

    1983-09-01


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English





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