Evangelou, S. A., Limebeer, D. J. N. & Tomas-Rodriguez, M. (2013). Suppression of Burst Oscillations in Racing Motorcycles. Paper presented at the 49th IEEE Conference on Decision and Control, 15-12-2010 - 17-12-2010, Atlanta, USA.
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Burst oscillations occurring at high speed and under firm acceleration are suppressed with a mechanical steering compensator. Burst instabilities in the subject racing motorcycle are the result of interactions between the wobble and weave modes under high-speed cornering and firm-acceleration conditions. Under accelerating conditions the wobble-mode frequency decreases, while the weave mode frequency increases so that destabilizing interactions occur. The design analysis is based on a time-separation principle, which assumes that bursting occurs on time scales over which speed variations can be neglected. Therefore, under braking and acceleration conditions linear time-invariant models corresponding to constant-speed operation can be utilized in the design process. The inertial influences of braking and acceleration are modelled using d’Alembert-type forces that are applied at the mass centres of each of the model’s constituent bodies. The resulting steering compensator is a simple mechanical network that comprises a conventional steering damper in series with a linear spring. This network is a mechanical lag compensator.
|Item Type:||Conference or Workshop Item (Paper)|
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|Subjects:||T Technology > TL Motor vehicles. Aeronautics. Astronautics|
|Divisions:||School of Engineering & Mathematical Sciences > Engineering|
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