认为发电机转速达到两倍临界转速附近，轴系发生了油膜振荡。
Thought that the generator rotational speed had achieved nearby two time of critical rotation speeds, the shafting has had the oil film vibration.
并针对立轴系统各结构参数的改变，得到了分离机立轴系统各结构参数对其临界转速的影响。
Through changing the structural parameters of the principal axis system, we can obtain the effect of each parameter on the critical rotational speed.
将弹性支承轴系分为转子子系统与支承子系统，假定在交联点处的位移阻抗值，则可由频率方程序确定转子子系统的临界转速。
By assuming impedance values of the coupling points, the critical speeds of the rotor subsystem can be determined from its frequency equation.
将弹性支承轴系分为转子子系统与支承子系统，假定在交联点处的位移阻抗值，则可由频率方程序确定转子子系统的临界转速。
By assuming impedance values of the coupling points, the critical speeds of the rotor subsystem can be determined from its frequency equation.
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