By the use of a finite element method and by taking account of the non-linearity of bearing oil film force established are the shafting nonlinear equation group of the said turbogenerator.
用有限元法及考虑各轴承油膜力非线性，建立了大型汽轮发电机组轴系非线性方程组。
2
Thought that the generator rotational speed had achieved nearby two time of critical rotation speeds, the shafting has had the oil film vibration.