Based on the suspension vibration principle, the vibrating motor generates vibration torque to make sand particles crush with each other in a certain way.

它采用悬浮振动的原理。振动电机产生激振力矩使砂块按一定的规律振动通过相互碰撞，搓擦而达到破碎旧砂块的目的。

youdao

As for the problem the high current and the vibration of the torque, the double closed loops which include the current and power factor Angle are worked out.

对于电动机起动需要控制起动电流和转矩震动的问题，采用双闭环的控制方案，即电流闭环控制和功率因数角闭环控制。

youdao

Finally, the torsion vibration nature frequency and torque amplitude factor of a rolling mill are calculated by using finite element method.

最后使用有限元法计算了某钢厂冷轧机主传动轴系的扭振固有频率和转矩放大系数。

youdao