1000 MW汽轮机轴系扭振参数计算分析  

Calculation and Analysis of Torsional Vibration Parameters for 1000 MW Steam Turbine Shafting

作　　者：樊卿 汪昌勇 周强 帅志昂 何超 FAN Qing;WANG Chang-yong;ZHOU Qiang;SHUAI Zhi-ang;HE Chao(Chengdu Hezong Nuclear Power Engineering Co.,Ltd.,Chengdu 610213,China;Nuclear Power Institute of China,Chengdu 610213,China)

机构地区：[1]成都核总核动力研究设计工程有限公司,成都610213 [2]中国核动力设计研究院,成都610213

出　　处：《汽轮机技术》2025年第2期101-104,共4页Turbine Technology

摘　　要：某核电1000 MW汽轮机组为进口设备,供货方未提供汽轮机组轴系的等效转动惯量、等效扭转刚度及轴系扭振频率等参数,该参数对于解决扭振问题及开展振荡风险评估等均至关重要。根据模化理论建立了汽轮机轴系的等效三维模型,对轴系的扭转振动特性进行了分析,并基于应变能法计算了转子等效扭转刚度,解决了该机组因为缺失扭振参数无法开展振荡风险评估等问题,为电厂和汽轮机生产厂家提供了计算汽轮机组轴系扭振参数的方法。A 1000 MW nuclear power steam turbine unit from abroad was delivered without providing the equivalent rotational inertia,equivalent torsional stiffness,and shafting torsional vibration frequency parameters,which are crucial for addressing torsional vibration issues and conducting oscillation risk assessments.This paper establishes an equivalent three-dimensional model of the turbine shafting based on modeling theory,analyzes the torsional vibration characteristics of the shafting,and calculates the rotor's equivalent torsional stiffness using the strain energy method.This approach addresses the issue of missing torsional vibration parameters and provides a reference for power plants and turbine manufacturers to calculate the torsional vibration parameters of the turbine shafting.

关 键 词：汽轮机组 轴系 扭振 模态分析 应变能法 扭转刚度 

分 类 号：TK263.6[动力工程及工程热物理—动力机械及工程]