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。
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。
The model of artificial neural network was established, which express the intricate relation of processing parameters and tapping torque in vibration tapping in titanium alloy.
基于神经网络方法，建立钛合金振动攻丝中工艺参数对攻丝扭矩影响的网络模型。
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。
The variation on torque is the very cause of torsional vibration.
扭矩的这种变化即是塔架产生扭转振动的原因。
But its major disadvantages are the big vibration caused by torque moment fluctuation, which leads to high noise, and further affects the comfortableness and smoothness of automobiles.
缺点主要是由于转矩波动引起的振动较大，易产生噪声，进而使车辆的舒适性和平顺性降低。
Due to the interaction between the permanent magnet and slotted armature lamination, there exists cogging torque in slotted permanent magnet motors, which may cause noise and vibration.
永磁电机中永磁体与有槽电枢铁心之间相互作用，产生齿槽转矩，引起电机振动和噪声。
Frequency of torque signal is consistent with that of force vibration. Amplitudes of radial pulsation signal increases as tapping continues.
扭矩信号的频率与外加振动频率相一致，径向跳动信号随攻丝过程的持续进行逐渐变大。
Research result showed that the vibration-tapping torque signal could be estimated accurately and validly by this strategy and the clear feature spectrum line was obtained too.
结果表明，该方法能够准确、有效地估计出振动攻丝扭信号，获得清晰的特征谱线。
The "ripple torque" technique was adopted to increase the drive train damper to avoid gearbox vibration.
在高风速时采用“转矩纹波”技术加大传动链阻尼，避免传动链的振动。
The "ripple torque" technique was adopted to increase the drive train damper to avoid gearbox vibration.
在高风速时采用“转矩纹波”技术加大传动链阻尼，避免传动链的振动。
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