Continuous Robust Control for Two-Dimensional Airfoils with Leading- and Trailing-Edge Flaps

Finite-time fault-tolerant control for flutter of wing

“…However, this method needs firstly to compute a conservative estimate of the domain of attraction for the closedloop antistable subsystem. In addition, these references (Cassaro & Battipede, 2015;Wang et al, 2012;Zhang et al, 2013) are mainly focusing on the problems of linear and nonlinear systems over an infinite-time interval. However, in the actual reentry process of vehicle, the flutter will destroy the vehicle in a short time, we must control the flutter within a certain range in a finite time.…”

“…The technique of active flutter suppression has drawn much attention over the past decade (Cassaro & Battipede, 2015;Wang, Behal, & Marzocca, 2012;Zhang, Wang, Behal, & Marzocca, 2013). For example, Wang et al (2012) considered a class of aeroelastic systems with an unmodeled nonlinearity and external disturbance and proposed a full-state feedforward/feedback controller with a highContents lists available at ScienceDirect journal homepage: www.elsevier.com/locate/conengprac gain observer; they also designed a continuous robust controller to suppress the aeroelastic vibrations of a nonlinear wing-section model. Zhang et al (2013) designed a partial state feedback continuous adaptive controller in order to suppress the aeroelastic vibrations of the wing section model.…”

“…Therefore, the active fault-tolerant control has proposed in this paper. It is worth mentioning that the above researches (Cassaro & Battipede, 2015;Wang et al, 2012;Zhang et al, 2013) are derived from the assumption that the controllers are able to provide any requested outputs. However, in the reentry process, hypersonic vehicles demand large control forces and signal magnitude, the control actions are usually limited, which means the controller is under actuator saturation.…”

“…Therefore, compared with (Amoozgar, 2013;Mardanpour et al, 2014;Mazidi et al, 2013) previous studies, our research is of great significance. (ii) In order to reveal the negative effect of the conventional control on the stability of aeroelastic system (Cassaro & Battipede, 2015;Huang et al, 2015;Singh, 2015;Wang et al, 2012;Zhang et al, 2013;Zhao, 2009Zhao, , 2011 and consider the influence of faults, time delay, input saturation, time-varying parameter uncertainties and external disturbances, this paper focuses on the design of finite-time H 1 adaptive fault-tolerant controller for flutter of wing with propulsion system. The sensor and actuator faults are both considered in the controller design.…”

A Continuous Robust Control Strategy for the Active Aeroelastic Vibration Suppression of Supersonic Lifting Surfaces

“…Recently, neural-network-based (i.e., model-free) control approaches have been proposed in [20] and [21] to stabilize a nonlinear aeroelastic wing section. However, there is very little work (e.g., [3], [22]) dealing with the aeroelastic vibration suppression for a supersonic wing section in the presence of both structural and aerodynamic nonlinearities.…”