20万千瓦汽轮发电机组转子轴承系统稳定性研究

Research on Stability for Rotor-Bearing System of 200 MW Turbogenerator Machine Group

在已知滑动轴承动力特性的8个系数的基础上,通过计算来预报转子轴承系统失稳转速及稳定裕度.从理论上比较了用不同沟槽结构参数的椭圆轴承支承的转子轴承系统的阻尼变化趋势,定量地判断了系统的失稳转速,并研制了计算程序,对20万千瓦汽轮发电机组转子轴承系统稳定性进行了理论分析和计算.

This paper based on the eight coefficients of sliding bearing dynamic properties, get by calculated to forecasted lose rotational speeds and stability extent of rotor bearing system In order to coordinate with the experiment research, and compared the change trend of damping for rotating-bearing system supported by elliptical bearing that have different grooved structure parameter in terms of theory, and quantitative judge the lose stability speeds. A computer program to calculate and analyze of stability for rotor-bearing system of 200 MW turbogenerator machine group.