Abstract: Aiming at the problem that it was difficult to synchronize the motor speed under the electromechanical coupling of the DC motor and the vibrating mass in the dual-motor drive vibration system, a dual-motor Sparrow optimized sliding mode synchronization control algorithm based on the master-slave control structure was proposed. First, the electromechanical coupling model of the type of vibration system was established, and the differential equation of motion of the vibration system was solved with the help of Lagrange equation. Then the master-slave control structure was adopted, and the sliding mode parameters were optimized using the sparrow search algorithm (SSA) to realize the main motor effective control of the phase difference between the speed and the master-slave motor. Finally, a MATLAB/Simulink simulation model was built to verify the stability of the control system and the effectiveness of the control strategy. The experimental results show that the sparrow optimized sliding mode control algorithm based on the master-slave structure has a good synchronous control effect on the dual-motor drive vibration system. The difference between the master motor speed and the preset speed is less than 0.5rad/s, and the phase difference between the master and slave motors is less than 0.1rad. The displacement of the vibration system in the x direction is close to 0m, and the movement in the y direction shows a stringlike reciprocating fluctuation of -0.02m~0.02m, which meets the requirements of vibrating machinery.
Key words:  mechanical vibration system; masterslave control structure; sliding mode controller; sliding mode parameters; electromechanical coupling model; MATLAB/Simulink