Application of output feedback sliding mode control to active flutter suppression of two-dimensional airfoil

Yang, Chao; Song, Chen; Wu, Zhigang; Xie, Chunhong

doi:10.1007/s11431-010-0099-z

Cited by 19 publications

(10 citation statements)

References 21 publications

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“…The selection of λ 1 and λ 2 should satisfy the condition that the roots of the characteristic polynomial (17) are all in the left side of the complex plane and far away from the imaginary axis.…”

Section: A Extended State Observer Designmentioning

confidence: 99%

Robust Continuous Sliding Mode Control for Manipulator PMSM Trajectory Tracking System Under Time-Varying Uncertain Disturbances

et al. 2020

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This paper focuses on a robust continuous sliding mode control (RCSMC) method for manipulator PMSM trajectory tracking system under time-varying uncertain disturbances. The main objective of this study is to improve the trajectory tracking dynamic response and disturbances rejection ability of the manipulator PMSM, and then the manipulator itself, by using the RCSMC method. The RCSMC method consists of two key parts: a terminal continuous sliding mode controller (TCSMC), and an extended state observer (ESO). The TCSMC has been demonstrated to have remarkable capabilities to reduce the chattering phenomenon caused by high frequency switching function in the conventional sliding mode control law, and reject the strong time-varying uncertain disturbances for PMSM velocity loops. However, the high control gain, which could lead high velocity steady state fluctuations, is needed. Therefore, an extended state observer is introduced to estimate the disturbances. The estimated disturbances are further used by the velocity loop controller as a kind of feed-forward compensation to reduce the gain of the TCSMC method. The stability of the PMSM trajectory tracking system with the RCSMC algorithm is guaranteed by the Lyapunov stability criteria. Simulations have been conducted to verify the performance of the proposed RCSMC algorithm. Finally, the proposed RCSMC algorithm is applied in a practical 6-DOF manipulator, and the experimental results exhibit the extraordinary robustness and capabilities in dynamic position tracking characteristics, velocity response and disturbances rejection. INDEX TERMS robust continuous sliding mode control, manipulator, PMSM control, trajectory tracking system,time-varying uncertain disturbances

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Section: A Extended State Observer Designmentioning

confidence: 99%

Robust Continuous Sliding Mode Control for Manipulator PMSM Trajectory Tracking System Under Time-Varying Uncertain Disturbances

et al. 2020

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“…Existing control methods for strong nonlinear systems tend to be inconvenient. For example, the feedback linearization method requires a high-precision nonlinear model [10]; the sliding mode control has chattering problems [11] and fuzzy control relies on prior knowledge [12]. Linear methods can be applied in the gain-scheduling context to control nonlinear or time-varying systems [13], [14].…”

Section: Introductionmentioning

confidence: 99%

Aeroengine Robust Gain-Scheduling Control Based on Performance Degradation

et al. 2020

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This study was conducted to develop a novel tracking control strategy for aeroengines with strong nonlinearity and uncertainty. Compared to existing robust gain-scheduling control strategies, the proposed control strategy has relatively low conservatism and can markedly improve engine performance. An improved on-board adaptive aeroengine model was established to estimate engine performance degradation and eliminate the degradation term contained in the perturbation block of the engine uncertain model in the design process. Robust controllers under engine normal and performance degradation states were designed at a set of operating points and scheduled according to relevant scheduling and health parameters. A desired robust gain-scheduling controller, which works based on performance degradation, can be precisely constructed via this approach. Simulation results are given to demonstrate the effectiveness of the proposed method, where the response speed of engine is improved by 38%.

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“…(2007). An output feedback sliding mode control technique was applied to suppress the pitch-plunge flutter of a linear 2D airfoil with quasi-steady aerodynamic forces by Yang et al. (2010).…”

Section: Introductionmentioning

confidence: 99%

“…An adaptive output feedback controller was applied to suppress the aeroelastic vibrations of a wing section with a nonlinear term in stiffness matrix by Reddy et al (2007). An output feedback sliding mode control technique was applied to suppress the pitchplunge flutter of a linear 2D airfoil with quasi-steady aerodynamic forces by Yang et al (2010). They focused on the control system discretization and the control input constraint as well as the parameter perturbations and the time delay effects.…”

Section: Introductionmentioning

confidence: 99%

Suppression of nonlinear aeroelastic vibration of a wing/store under gust effects using an adaptive-robust controller

Fazelzadeh

Azadi

2016

Journal of Vibration and Control

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In this paper, a nonlinear active control scheme is applied to suppress the flutter vibration of a wing/store. The system is considered as a two dimensional airfoil with attached store. The nonlinear aero-servo-elastic model of the system is obtained based on the Lagrange's formulation. The proposed active pylon involves the piezoelectric wafer strut as the actuator. The aero loads are modeled using Theodorsen function. A gust disturbance model is also added to the system governing equations of motion. An adaptive-robust control scheme is used to suppress the flutter vibration of the wing/ store system. The proposed adaptive-robust controller is a composition of the adaptive and robust controllers and so can be considered as a useful controller in presence of unknown parameter uncertainty and disturbances. Finally, the system is simulated and the controller is applied to the system to control the flutter vibrations. The results illustrate the high performance and effectiveness of the controller.

show abstract

Application of output feedback sliding mode control to active flutter suppression of two-dimensional airfoil

Cited by 19 publications

References 21 publications

Robust Continuous Sliding Mode Control for Manipulator PMSM Trajectory Tracking System Under Time-Varying Uncertain Disturbances

Robust Continuous Sliding Mode Control for Manipulator PMSM Trajectory Tracking System Under Time-Varying Uncertain Disturbances

Aeroengine Robust Gain-Scheduling Control Based on Performance Degradation

Suppression of nonlinear aeroelastic vibration of a wing/store under gust effects using an adaptive-robust controller

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