Adaptive Fuzzy Control for Aircraft Tractor’s Magneto Rheological Semi-active Suspension

Abstract

Abstract. In order to improve aircraft tractor's ride comfort and traction friendly, this paper takes the MR semi-active suspension as the research object and establishes half body model. Through fitting, this paper obtained the magnetic rheological damper's damping expression, designed a magnetic rheological damper with low pressure nitrogen compensation structure. The fuzzy control is used to study suspension's performance. Aiming for reducing body acceleration, this paper introduced the thought of adaptive control to adjust the domain constantly. The simulation results shows that the adaptive fuzzy control can improve aircraft tractor's suspension function obviously with small amount of calculation, good real-time performance. This algorithm has self-adaptability to the changes in the suspension parameters, easy to meet the control system's requirement and realize in engineering.