盘式拉杆转子拉杆紧力瞬态变化分析  

Transient Analysis of Pre-tightened Force for a Rod-fastened Rotor

作　　者：祁乃斌[1] 袁永强[1] 高进[1] 郭勇[1] 苏正[1] 

机构地区：[1]东方电气东方汽轮机有限公司,四川德阳618000

出　　处：《东方电气评论》2018年第1期44-48,69,共6页Dongfang Electric Review

基　　金：国家973计划项目(2013CB035706):先进重型燃气轮机制造基础研究。课题名称:高温服役环境下大型组合转子系统性能退化及演变规律

摘　　要：盘式拉杆转子结构广泛应用于燃气轮机转子,拉杆作为该种转子结构的核心部件,长期工作在高温、高应力状态,分析拉杆的受力情况对轮盘拉杆式转子的设计意义重大。采用三维模型计算了某试验压气机转子在运行过程中的瞬态温度场和应力场,获得了拉杆应力和拉杆紧力在运行过程中的变化曲线,得到了拉杆紧力发生改变的原因及优化措施。Rod-fastened structure is widely used in gas turbine rotor. As a core component of the rotor, rod works long time under high temperature and high stress condition. Analysis of rod and discs stress is of great significance. Three dimensional finite element transient temperature and stress analysis of a test compressor rotor during operation is performed. The curves of stress and tension force of the rod during operation are obtained. Causes of tension force change of the rod and optimization methods are analyzed.

关 键 词：轮盘拉杆式转子 拉杆紧力 瞬态分析 

分 类 号：TK474.812[动力工程及工程热物理—动力机械及工程]