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.
A Theory for the Roll-Ratchet Phenomenon in High Performance Aircraft
1997-01-01
Report
No indication
English
Theory for Roll-Ratchet Phenomenon in High-Performance Aircraft
Online Contents | 1998
|A Theory for the Roll-Ratchet Phenomenon in High Performance Aircraft
British Library Conference Proceedings | 1997
|Excessive roll damping can cause roll ratchet
AIAA | 1983
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