What is it about?
The shimmy of the nose landing gear is a nonlinear oscillation of the fork-wheel assembly around the steering axis that causes wearing of the nose landing gear mechanical components. An active system based on the Modified Simple Adaptive Control technique is proposed for the first time to suppress the nose landing gear shimmy phenomenon.
Photo by Sergei Akulich on Unsplash
Why is it important?
The use of MSAC can be considered a promising method for the realization of an NLG adaptive shimmy damping system since: •it only requests for one measure, the fork-wheel rotation angle, thus reducing costs associated with sensor device installation; •it does not ask for online parameters identification nor for state observer implementation; •its structure is quite simple and only a reduced number of invariant parameters need to be set in the design process.
Read the Original
This page is a summary of: Nose Landing Gear Simple Adaptive Shimmy Suppression System, Journal of Guidance Control and Dynamics, July 2020, American Institute of Aeronautics and Astronautics (AIAA), DOI: 10.2514/1.g004832.
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