A new, advanced type of active control for helicopters and its applications are described. The system, based on previously developed M.I.T. Individual-Blade-Control hardware, employs blade-mounted accelerometers to sense blade motion and feeds back information to control blade pitch in such a manner as to reduce the response of selected blade modes. A linear model of the blade and control system dynamics is used to give guidance in the design process as well as to aid in analysis of experimental results. System performance in wind tunnel tests is described, and evidence is given of the system's ability to provide substantial reduction in blade modal responses, including blade bending vibration.


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    Title :

    Helicopter individual-blade-control and its applications


    Contributors:
    Ham, N. D. (author)

    Publication date :

    1984-01-01


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English




    Helicopter Individual-Blade-Control: Promising Technology for the Future Helicopter

    Ham, N. D. / American Helicopter Society; Northeast Region | British Library Conference Proceedings | 1995



    Helicopter Individual-Blade-Control: Promising Technology for the Future Helicopter

    Ham, N. D. / American Helicopter Society; Northeast Region | British Library Conference Proceedings | 1995