Nonlinear model based particle swarm optimization of PID shimmy damping control

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	Advances in Aircraft and Spacecraft Science Volume 3, Number 2, April 2016 , pages 211-244 DOI: https://doi.org/10.12989/aas.2016.3.2.211
	Full Text PDF Nonlinear model based particle swarm optimization of PID shimmy damping control
	Andrea Alaimo, Alberto Milazzo and Calogero Orlando
Abstract
	The present study aims to investigate the shimmy stability behavior of a single wheeled nose landing gear system. The system is supposed to be equipped with an electromechanical actuator capable to control the shimmy vibrations. A Proportional-Integrative-Derivative (PID) controller, tuned by using the Particle Swarm Optimization (PSO) procedure, is here proposed to actively damp the shimmy vibration. Time-history results for some test cases are reported and commented. Stochastic analysis is last presented to assess the robustness of the control system.
Key Words
	nose landing gear; shimmy vibration; active control
Address
	Andrea Alaimo: Universita di Enna \"Kore\", Cittadella Universitaria 94100, Enna, Italy Alberto Milazzo: Universita di Palermo, Viale delle Scienze Ed. 8, 90128 Palermo, Italy Calogero Orlando: Universita di Enna \"Kore\", Cittadella Universitaria 94100, Enna, Italy