大型汽轮发电机轴系稳定裕度研究  

DEGREE OF STABILITY OF LARGE TURBINE-GENERATOR ROTORS

作　　者：袁小阳 朱均 

出　　处：《西安交通大学学报》1994年第9期51-57,共7页Journal of Xi'an Jiaotong University

基　　金：高校博士点基金和国家"八五"科技攻关

摘　　要：分析了轴承－转子系统的基本力（阻尼力、陀螺力和循环力等）影响其系统稳定性时表现出的“阻尼”特性，提出了广义阻尼的概念；并以大型汽轮发电机轴系为对象，运用广义阻尼较系统地探讨了轴系稳定裕度、单个轴承对系统稳定裕度的影响等问题，给出了一些新的概念、准则和分析方法（通称为轴系稳定裕度分析的广义阻尼理论）．随后，运用广义阻尼理论较系统地计算、分析了某机组轴系的稳定裕度及其相关问题，取得了令人满意的结果，从而论证了广义阻尼理论的实用价值。This paper discusses and raises the concept of “generalized damping”by analysing the“damping feature”of the rotor- bearing system demonstrated when its stability is influencedby the basic forces of the system,such as the damping forces,the gyroscopic forces and thecircular forces etc。And with the help of the concept we systematically investigated the de-gree of stability and the effect of each bearing on it for the large turbine-generator rotors。Consequently,some new concept,criterion and the analysis method are introduced(we de-note them as the generalized damping theory of the degree of stability of rotors).Finally,byapplying the theory to some type of the large turbine- generator rotors,the article analyzesand investigates its degree of stability and the related problems,and some satisfactory re-sults are obtained,where by the practical value of this theory and method is proved。

关 键 词：轴承 稳定性 汽轮发电机 稳定裕度 

分 类 号：TM311[电气工程—电机]