active control of shimmy vibration in aircraft nose landing gear using fuzzy and narma-l2 controllers

In this paper, control of shimmy vibration of aircraft nose landing gear is presented. in this regard, the narma-l2 neural controller and a robust controller using a fuzzy method are designed and compared. the efficiency of these controllers was measured by comparing the results obtained from ctm and pid controllers. using the narma-l2 neural controller, maximum effort and settling time are improved whereas using fuzzy controller overshoot of the vibration response improvement in the closed-loop system was observed. according to these results, a large part of the design requirements can be solved by the implemented controllers.