汽轮机转子临界转速的仿真分析与验证  

Simulation Analysis and Verification of Critical Rotor Speed of Steam Turbine

作　　者：陈付平 许文辉 杨二旭 CHEN Fu-ping;XU Wen-hui;YANG Er-xu(Luoyang CITIC HIC Power Equipment Company Limited,Luoyang 471003,China;National Engineering Research Center for Equipment and Technology of Cold Strip Rolling,Yanshan University,Qinhuangdao 066004,China)

机构地区：[1]洛阳中重发电设备有限责任公司,洛阳471003 [2]燕山大学国家冷轧板带装备及工艺工程技术研究中心,秦皇岛066004

出　　处：《汽轮机技术》2020年第5期341-342,380,共3页Turbine Technology

摘　　要：基于Ansys Workbench有限元分析软件建立了汽轮机转子-滑动轴承系统模型,计算了转子系统在考虑支撑动刚度与陀螺效应下的临界转速,绘制转子系统的Campbell(坎贝尔)图,并与高速动平衡实验进行对比验证。结果证明:转子临界转速和高速动平衡实验结果一致,验证了汽轮机转子-滑动轴承系统建模的准确性和临界转速的计算精度,为转子临界转速的计算提供了重要的理论依据。Based on Ansys Workbench finite element analysis software,this paper established the turbine rotor-sliding bearing system model,calculated the critical speed of the rotor system considering the dynamic stiffness of the support and the gyro effect,drew the Campbell diagram of the rotor system,and compared it with the high-speed dynamic balance experiment for verification.The results show that the critical speed of the rotor is consistent with that of the high-speed dynamic balance experiment,which verifies the accuracy of the modeling of the turbine rotor-sliding bearing system and the calculation accuracy of the critical speed,and provides an important theoretical basis for the calculation of the critical speed of the rotor.

关 键 词：汽轮机 临界转速 仿真分析 高速动平衡实验 

分 类 号：TK262[动力工程及工程热物理—动力机械及工程]