Fault-Tolerant Control for Wing Flutter Under Actuator Faults and Time Delay

• Published in: Journal of Vibration Engineering & Technologies Vol. 6; no. 6; pp. 429 - 439
• Main Authors: Gao, M. Z., Cai, G. P.
• Format: Journal Article
• Language: English
• Published: Singapore Springer Singapore 01.12.2018
• Subjects: Acoustics; Control; Dynamical Systems; Engineering; Engineering Acoustics; Original Paper; Vibration; Active flutter suppression; Time delay; Fault-tolerant control; Actuator fault; Actuator saturation; Observer
• ISSN: 2523-3920; 2523-3939
• DOI: 10.1007/s42417-018-0061-0

Purpose Investigating the design of the controller stabilizing the wing flutter system, which is robust against actuator faults, actuator saturation, time delay, parameter uncertainties and external disturbances. Methods The model of the wing flutter system that considered the effects of actuator faults and saturation, time delay, parameter uncertainties and external disturbances is constructed by the Lagrange method. Then the finite-time fault-tolerant controller is derived, the stability of which is proved by the Lyapunov function. Conclusions The simulation results elucidate that, the proposed fault-tolerant controller can handle the actuator faults effectively, meanwhile the wing flutter of the reentry vehicle can be suppressed instantly. The robustness of the actuator against actuator saturation, time delay, parameter uncertainties and external disturbances is also demonstrated.