Affiliation:
1. Northwestern Polytechnical University
Abstract
Aircraft anti-skid braking system providing protection for the safety of the aircraft landed by controlling the brake pressure to be maintained slip ratio in best condition. The aircraft anti-skid braking system is hard to control as the nonlinear model of the aircraft dynamics, the uncertainty of friction between the tires and the ground of braking process. With the study of slip ratio and research of aircraft anti-skid braking system dynamics model, the sliding mode variable structure controller is designed. Then index reaching law is adopted to eliminate the system chattering and the performance is analyzed, further more the robustness is strengthen. Simulation results indicate that: the slip ratio follows the optimum slip ratio, the input signal is smooth, achieve the purpose.
Publisher
Trans Tech Publications, Ltd.
Reference8 articles.
1. Wang Jisen, Nonlinear Control Theory and Its Application to Aircraft Anti-skid Brake Systems, Northwestern Polytechnical University. (2001).
2. Li Yuren, Ma Ruiqing, Xue Jing, Improving Variable Structure Control of Aircraft Anti-Skid Brake System, J. Journal of Northwestern Polytechnical University. Vol. 26 (2008), pp.752-755.
3. Tian Guanglai, Xie Lili, Yue Kaixian, Study on Optimal Control Method of an Aircraft Anti-skid Braking System Based on Slip ratio, J. ACTA AERONAUTICAET ASTRONAUTICA SINICA. Vol. 26 (2005), pp.461-464.
4. Keum W. Lee, Pradeep R. Nambisan, Sahjendra N. Singh, Adaptive Variable Structure Control of Aircraft with an Unknown High-Frequency Gain Matrix, J. Journal of Guidance, Control, and Dynamics. Vol. 31 (2008), pp.94-103.
5. Liang Bo, Li, Yuren, Zhang, Zhihui. Research on simulation of aircraft electro-hydrostatic actuator anti-skid braking system. Proceedings-3rd International Conference on Measuring Technology and Mechatronic Automation. Vol. 3 (2011), pp.78-82.