Roll-ratchet refers to a high frequency oscillation which can occur in pilot-in-the-loop control of roll attitude in high performance aircraft. The frequencies of oscillation are typically well beyond those associated with the more familiar pilot-induced oscillation. A structural model of the human pilot which has been employed to provide a unified theory for aircraft handling qualities and pilot-induced oscillations is employed here to provide a theory for the existence of roll-ratchet. It is hypothesized and demonstrated using the structural model that the pilot's inappropriate use of vestibular acceleration feedback can cause this phenomenon, a possibility which has been discussed previously by other researchers. The possible influence of biodynamic feedback on roll ratchet is also discussed.


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    Title :

    A Theory for the Roll-Ratchet Phenomenon in High Performance Aircraft


    Contributors:

    Publication date :

    1997-01-01


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English






    A Theory for the Roll-Ratchet Phenomenon in High Performance Aircraft

    Hess, R. / American Institute of Aeronautics and Astronautics | British Library Conference Proceedings | 1997