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前言随着机组容量的增长,发生油膜振荡的可能性增大了。汽轮发电机组转子的高速旋转,也就是轴颈在轴承内的高速旋转,是通过润滑油膜支持的。和任何力学系统的定常运动一样,这种高速旋转也存在稳定性问题。而所谓油膜振荡,就是轴颈在轴承油膜上的高速旋转一旦失稳后的运动性态。本文总结了西安热工研究所多年来参加现场消除汽轮发电机组油膜振荡的工作经验和体会。介绍了发生油膜振荡时的各种表象以及消除油膜振荡的具体方法。並对油膜振荡和
Preface As unit capacity increases, the possibility of oil film oscillation increases. Turbogenerator rotor high-speed rotation, which is the journal in the bearing high-speed rotation, is supported by the lubricating film. As with any mechanical system’s constant motion, this high-speed rotation also has stability problems. The so-called oil film oscillation, is the journal bearing film in the high-speed rotation once instability after the movement. This paper summarizes the experiences and experiences of Xi’an Thermal Engineering Institute participating in the scene to eliminate oil film oscillation of turbo-generator units over the years. The various phenomena of oil film oscillation and the concrete methods of eliminating oil film oscillation are introduced. And the film oscillation and