Aiming at the imprecise nonlinear systems such as flapping-wing aircraft
a method of attitude control for flapping-wing aircraft is proposed. Due to the disturbance caused by the complex environment and the uncertainty of the system
a dual loop tracking and adjusting attitude control based on sliding mode variable structure control is implemented
in which Lyapunov function is also introduced. In the flapping wing state
the goal posture such as pitch
yaw
roll and so on is achieved smoothly. The buffeting problem caused by the switching function of the traditional sliding mode control is overcome by the inner and outer loop design. The MATLAB simulation results show that the control method can rapidly reduce the Euler angle deviation and improve the dynamic response characteristics. It has good robustness and improves the accuracy of attitude adjustment.
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references
HU S B, YIN J F. Fuzzy Nonsingular Terminal Sliding Mode Control for Attitude of Flapping Wing Micro Aerial Vehicle[J]. Applied Mechanics and Materials, 2014, 716-717:1694-1698. DOI: 1694
LU W H, HU S B, WEI J, et al. Fuzzy Adaptive Terminal Sliding Mode Control for Attitude of Flapping Wing Micro Aerial Vehicle[J]. Advanced Materials Research, 2013, 605-607:5. DOI: 5
BLUMAN J E, KANG C K, SHTESSEL Y. Control of a Flapping-Wing Micro Air Vehicle: Sliding-Mode Approach[J]. Journal of Guidance Control % Dynamics, 2018, 41(8):1-7. DOI: 1
TRAN X T, OH H, KIM I R, et al. Attitude stabilization of flapping micro-air vehicles via an observer-based sliding mode control method[J]. Aerospace Science and Technology, 2018:S1270963817317315. DOI: S1270963817317315