Vibration Fatigue Test of Direct-drive Permanent Magnet Motor

Abstract

For a newly developed direct-drive permanent magnet motor, it is assembled with the bogie. In the test bench about the vibration fatigue test, to study the motor at a certain amplitude of the acceleration, the vibration to a certain number of times, whether the motor shell and the inner bearing will be damaged. Finally, the relationship between the vibration amplitude and the speed of the motor, and the acceleration vibration amplitude at different positions are obtained. At the same time, it is also verified that the motor can meet the standard fatigue life [1, 2].