关键词: 振动系统, 动力学分析, 频率俘获, 控制, 仿真

Abstract: Synchronization problem is the key of system driven by two or more motors.The dynamic model of vibration system driven by two motors and the mathematics model of induction motor are established.The dynamic characteristic of vibration system is analyzed by using dynamic theory，and the conditions of realizing frequency capture and the scheme to control phase difference of the two eccentric rotors are obtained.The computer simulation program in self-synchronous condition and that based on phase difference control of realizing frequency capture’s conditions are run，and results of computer simulations show that the vibration system can realize speed synchronization and phase synchronization rapidly after has been controlled.The simulation results verify the effectiveness of the control scheme.

Key words: vibration system, dynamic analysis, frequency capture, control, simulation