大型转子系统参数敏感性分析方法与应用

A Method of Analyzing the Parameter Sensitivity of Large Rotor Systems and Its Application

本文将模态综合技术与非自耦(non-self-adjoint)系统特征值参数敏感性分析方法相结合,建立了大型机组转子—轴承系统的参数敏感性分析方法。作为应用,针对国产大型机组轴系稳定性依赖于各轴承油膜动特性参数变化的敏感性进行了分析。

Based upon the eigenvalue sensitivity theory of non-self-adjoit system and the component mode synthesis method,a new technique is developed to analyze the eigenvalue sensitivity to variation of parameters of large rotor-bearing system. As an application, the influence of the journal bearing parameters on the stability of a large domestic turbine-generator set is analyzed and discussed.