TY - GEN
T1 - Active flutter suppression of a two-dimensional airfoil based on sliding mode control method
AU - Song, Chen
AU - Wu, Zhigang
AU - Yang, Chao
PY - 2010
Y1 - 2010
N2 - Flutter, a dynamic instability of aircrafts, may degrade the safety of the structures. Active flutter suppression (AFS) is a considerable solution to this issue. Sliding mode control (SMC) method, a nonlinear control strategy, is applied to AFS of a typical two-dimensional airfoil in this work. The airfoil has a trailing-edge flap utilized for flutter control. The system involves a two-DOF (degree-of-freedom) motion whose equations are constructed by using quasi-steady aerodynamic forces. First, the AFS system is designed by state feedback SMC method to suppress the flutter. Then, a sliding mode observer (SMO) is incorporated for further improvements. Finally, classical Runge-Kutta (RK) algorithm is utilized for simulations. The results indicate that the SMO can estimate the system states fast. Combining with the SMO, the controller could suppress the flutter at 14.8% above the open-loop flutter boundary.
AB - Flutter, a dynamic instability of aircrafts, may degrade the safety of the structures. Active flutter suppression (AFS) is a considerable solution to this issue. Sliding mode control (SMC) method, a nonlinear control strategy, is applied to AFS of a typical two-dimensional airfoil in this work. The airfoil has a trailing-edge flap utilized for flutter control. The system involves a two-DOF (degree-of-freedom) motion whose equations are constructed by using quasi-steady aerodynamic forces. First, the AFS system is designed by state feedback SMC method to suppress the flutter. Then, a sliding mode observer (SMO) is incorporated for further improvements. Finally, classical Runge-Kutta (RK) algorithm is utilized for simulations. The results indicate that the SMO can estimate the system states fast. Combining with the SMO, the controller could suppress the flutter at 14.8% above the open-loop flutter boundary.
UR - https://www.scopus.com/pages/publications/79952143843
U2 - 10.1109/ISSCAA.2010.5633472
DO - 10.1109/ISSCAA.2010.5633472
M3 - 会议稿件
AN - SCOPUS:79952143843
SN - 9781424460441
T3 - ISSCAA2010 - 3rd International Symposium on Systems and Control in Aeronautics and Astronautics
SP - 1146
EP - 1150
BT - ISSCAA2010 - 3rd International Symposium on Systems and Control in Aeronautics and Astronautics
T2 - 3rd International Symposium on Systems and Control in Aeronautics and Astronautics, ISSCAA2010
Y2 - 8 June 2010 through 10 June 2010
ER -