Effect of wheel-distance and corotating wheels on aircraft shimmy

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Journal of Vibration and Shock ›› 2019, Vol. 38 ›› Issue (6) : 212-217.

FENG Fei LUO Bo ZHANG Ce ZHU Hongmin

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Abstract

A non-linear dynamics model was developed to study the shimmy oscillations of an aircraft nose landing gear with corotating wheels. A bifurcation analysis was applied in dealing with the model, and the details of the procedure were described. The effects of wheel-distance and corotating wheels were studied based on the model. It is concluded that the longer wheel-distance means more stability against lateral shimmy and less stability against torsional shimmy, and may lead to the change in topological structure of shimmy areas. Corotating wheels reduce the area of lateral shimmy only when with long wheel-distance.

Key words

landing gear / shimmy / bifurcation analysis / wheel-distance / coratating wheels

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FENG Fei LUO Bo ZHANG Ce ZHU Hongmin. Effect of wheel-distance and corotating wheels on aircraft shimmy[J]. Journal of Vibration and Shock, 2019, 38(6): 212-217

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