科研之友
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摘要
Vibration torque are existence obviously during operation of stepping motor, it is a periodic structure vibration problem. In this paper, the motion model of motor is deduced and is compared with the motion mathematic model of pendulum; then actual vibration torque testing of stepper motor is executed through a self made vibration torque sensor, including single-step operation, low frequency continuous operation, low frequency lost step oscillation and continuous operation, the experimental results show that the stepping motor vibration torque of single three shot operation is more bigger than the six shot, and obvious reply oscillation existence in two operations; sharp vibration torque is generated on low frequency lost step oscillation; the vibration torque of single step operation is greater than the continuous operation, and vibration torque is decreasing with the frequency increasing; last, the generation of these experimental phenomena are analyzed, and the relationship between the stepper motor vibration torque peak value and frequency of the normal continuous operation are found, it can provide a certain reference for controller or control algorithm designation of stepper motor.
