Study of Adaptive Control System of Magneto-Rheological Fluid Dampers with Mechanical properties subject to Impact Loading

In recoil mechanisms applications, the adjustability of Magnetorheological (MR) damper is desired to be used to provide the optimal damping force. In this paper, the adaptive control system of MR dampers subject to impact loading was studied. Genaral design scheme of the MR recoil damping control system was promoted to achieve good recoil dynamics. For adaptive control, an expected referrence model with better performance was induced and the controller parameters was able to be adjusted realtime by adaptive laws, which were deduced based on Lyapunov stability theory and excuted by the adaptive machine. Finally experimental verifications were done with comparison of three control methods: PI control, adaptive control and the fixed current. The results indicated that, of the three control methods, the adaptive control were the most effective.