大型水轮发电机组振动稳定性分析与设计准则

Dynamic Analysis and Design Criteria of Vibration Stability for Large Hydro-generator Units

讨论了大型水轮发电机组结构设计中的动力学问题。针对立式机组的特点 ,提出了不同的建模方法和动力响应分析方法。建议在设计阶段评价机组振动稳定性的设计准则——避开共振准则、避免相碰准则、振动控制准则、疲劳强度设计准则等 ,并给出了工程应用实例。

Problems of dynamics in structural design for large hydro-generator units are discussed in this paper. For the vertical shaft units, methods of modeling and dynamic response estimation, distinguished from traditional methods in rotor dynamics, are presented. Evaluation criteria in design stage for vibration stability of the units are recommended. Finally, an example of engineering application is given.