Robust fault-tolerant control for wing flutter under actuator failure

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• 作者：Mingzhou Gao ^{jsycgaomingzhou@163.com" class="auth_mail" title="E-mail the corresponding author}Author Vitae ; Guoping Cai ; ^{caigp@sjtu.edu.cn" class="auth_mail" title="E-mail the corresponding author}Author Vitae
• 关键词：Actuator fault ; Actuator saturation ; Aeroservoelasticity ; Fault-tolerant control ; Flutter ; Observer
• 刊名：Chinese Journal of Aeronautics
• 出版年：2016
• 出版时间：August 2016
• 年：2016
• 卷：29
• 期：4
• 页码：1007-1017
• 全文大小：1191 K

文摘

Many control laws, such as optimal controller and classical controller, have seen their applications to suppressing the aeroelastic vibrations of the aeroelastic system. However, those control laws may not work effectively if the aeroelastic system involves actuator faults. In the current study for wing flutter of reentry vehicle, the effect of actuator faults on wing flutter system is rarely considered and few of the fault-tolerant control problems are taken into account. In this paper, we use the radial basis function neural network and the finite-time H_∞ adaptive fault-tolerant control technique to deal with the flutter problem of wings, which is affected by actuator faults, actuator saturation, parameter uncertainties and external disturbances. The theory of this article includes the modeling of wing flutter and fault-tolerant controller design. The stability of the finite-time adaptive fault-tolerant controller is theoretically proved. Simulation results indicate that the designed fault-tolerant flutter controller can effectively deal with the faults in the flutter system and can promptly suppress the wing flutter as well.