Journal of Electrical Engineering and Automation

Aiming at the problem that high-precision equipment is susceptible to multi-directional disturbances when operating in complex environments, this paper proposes a multi-objective optimization control method for a six-degree-of-freedom vibration isolation platform based on magnetorheological-electromagnetic composite drive. The platform utilizes the fast adjustable characteristics of magnetorheological dampers and the high response performance of electromagnetic drives to realize active and semi-active cooperative vibration isolation for six degrees of freedom (translation and rotation). A system dynamics model is established, and a multi-objective optimization algorithm is combined to comprehensively balance vibration isolation performance, energy consumption, and control stability. Through simulation and experimental verification, the optimized control strategy significantly reduces the vibration transmissibility in a wide frequency domain and achieves a balance between energy consumption and control accuracy. The research results provide new ideas for the vibration isolation design of high-end precision instruments, aerospace equipment, and large electromechanical systems.

Magnetorheological damper; Electromagnetic drive; Six-degree-of-freedom vibration isolation platform; Multi-objective optimization control; Vibration transmissibility