MA Wu yuan, ZHOU Ling

 

(Changchun Institute of Optics, Fine Mechanics and Physics, 

Chinese Academy of Sciences, Changchun 130033, China)

 

 

Abstract: In order to solve the shimmy oscillation problem of the UAV nose landing gear during taxing, the dynamic model of a UAV nose landing gear was established, considering strut rake angle, torsional and lateral stiffness of strut. The model was solved by numerical simulation with Matlab/Simulink, and the time domain curve of torsional and lateral degree was obtained. The anti shimmy effect of dry friction, linear damping and square damping was contrasted. The shimmy damper and nose landing gear was developed. The results show that it run well during the taxing experiment and linear damping or square damping is better.

 

Key words: shimmy; unmanned aerial vehicle (VAV) nose landing gear; damping; simulation