unbalance mass

Based on calculation of the shafting dynamics model of unit, the value of unbalance mass of runner correspond to the value of vibration quantity in the testing site was obtained.

根据建立的机组轴系动力学模型，计算得到了测试位置处振动量所对应转轮的质量不平衡量值的大小。

It is proved that mass unbalance on one rotor can induce every rotor to vibrate.

通过实验证明了当某一个转子上存在不平衡质量时,将会对系统中的每一个转子产生激励.

The impact of the unbalance mass caused by the installment error of the blades on the vibration of the wind turbine tower

叶片安装误差引起的不平衡质量对风力机塔架振动的影响

The principle of the ridding of unbalance mass is presented and the vector decomposition of great unbalance is given as well.

简述了不平衡量的去重原理及较大不平衡量的矢量分解。

Add test mass at three point of the fan wheel to be balance respectively, they turn on the motor, and measure the vibration, then the unbalance can be calculated with the test mass and the vibration values.

在叶轮上三个等分点分别加试重，并测试相应振动值，用公式就可以计算出不平衡量的大小和位置。

Unbalance means the non-uniform distribution of the mass of a rotor about its axis of rotation.

不平衡是指转子相对于其旋转轴质量分布不均匀。