600MW汽轮发电机组转子系统建模与动力学特性分析  

Modeling and Analysis of Dynamic Characteristics of the Rotor System of 600MW Turbo-generator Set

作　　者：张世海 刘雄彪[2] 李录平[2] 晋风华[2] 梁伟[2] 

机构地区：[1]贵州电力试验研究院,贵阳550002 [2]长沙理工大学,长沙410004

出　　处：《汽轮机技术》2016年第1期13-16,共4页Turbine Technology

摘　　要：采用Solidworks软件对国产某600MW汽轮发电机组转子系统进行三维实体建模。运用Algor有限元软件对该机组各转子及轴系进行了动力特性分析。结果表明:该机组轴系的各阶模态频率值有按照各单转子各阶模态频率值由小到大顺序排列、各阶模态振型相对应的分布趋势;该机组的各转子及轴系的固有频率均满足远离工作频率的要求。为大型汽轮发电机组转子系统的三维实体建模及其动力特性有限元分析提供了一定的参考,研究结果为该机组的运行提供了理论依据。The 3D model of rotor system of a domestic 600MW steam turbine has been modeled by using the Solidworks software. The analysis of dynamic characteristics of rotors and shaft system of this unit are completed by using the FEA software Algor. The results shows that the arrangement of modal frequency values of each order of the shaft system is roughly in ascending order according to the modal frequency values of each single rotor. And the distribution of the modal shape of each order of the shaft system with the trend that each modal shape matches the single rotor＇ s one, if the modal frequency value close to the signal rotor~ one. The natural frequencies of the rotors and the shaft system are satisfied with the requirements that the values are far from with the operating frequency value. The work of this article offered a reference for the 3D modeling concrete bodies and the analysis of dynamic characteristics of large turbo machines. The results of this study provides theoretical basis for operation of this unit.

关 键 词：600MW汽轮发电机组 转子-支撑系统 动力学特性 有限元 

分 类 号：TK263.3[动力工程及工程热物理—动力机械及工程]