Journal
JOURNAL OF VIBRATION AND CONTROL
Volume 29, Issue 1-2, Pages 375-386Publisher
SAGE PUBLICATIONS LTD
DOI: 10.1177/10775463211048257
Keywords
Vibration system; dynamics; control synchronization; adaptive fuzzy sliding mode; robustness
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This paper investigates the control synchronization of three eccentric rotors driven by motors in a vibration screen system using the adaptive fuzzy sliding mode control algorithm. The research demonstrates the effectiveness and robustness of the proposed control method in achieving desired synchronization motion.
In this paper, to obtain ideal dynamic behavior of vibration screen, control synchronization of three eccentric rotors (ERs) driven by motors in space vibration system is investigated by employing the adaptive fuzzy sliding mode control (AFSMC) algorithm. First, the dynamic model of the vibration system is established, and the motion equation of the electromechanical coupling system is derived via Lagrange equation. Then, the synchronization controllers of three ERs are systematically designed with the combination of AFSMC algorithm and master-slave control (MSC) structure, and the stability of the control system is verified by Lyapunov theory. Additionally, in comparison with the conventional sliding mode control (SMC) algorithm, the superiority and feasibility of the proposed AFSMC strategy are confirmed through numerical simulation in MATLAB/Simulink. Moreover, the robustness of the control system is demonstrated in the simulation via changing the motor velocities and structure parameters. The research result shows that the proposed adaptive strategy can effectively control the ERs to implement the desired in-phase synchronization motion, and the control method possesses commendable efficacy in reducing chattering, enhancing control accuracy, eliminating overshoot, and resisting parameter perturbation.
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