大功率汽轮机调节级的瞬态动力学和疲劳寿命分析  

Transient Dynamics and Fatigue Life Analysis of High Power Steam Turbine Control Stage

作　　者：苟小平[1] 李音[1] 谢贞军 范小平[1] GOU Xiaoping;LI Yin;XIE Zhenjun;FAN Xiaoping(Dongfang Turbine Co.,Ltd.,Deyang Sichuan,618000)

机构地区：[1]东方电气集团东方汽轮机有限公司,四川德阳618000

出　　处：《东方汽轮机》2021年第3期20-22,共3页Dongfang Turbine

摘　　要：大功率汽轮机的调节级在高温和高转速下工作,其工作条件极为恶劣。一直以来,调节级在部分进汽情况下的瞬态动力学响应是业内广泛关注的焦点。文章通过数值模拟的方法,采用先进的超单元和模态叠加法对大功率汽轮机的调节级在两阀工况下受到部分进汽激振力情况下的动力学响应进行了分析。结合调节级静力学计算的结果,对调节级的疲劳寿命进行了分析。The control stage of high power steam turbine works at high temperature and high speed, and its working condition is extremely bad. The transient dynamic response of the control stage in partial admission condition is widely concerned in the industry. By using numerical simulation method, advanced supper element and modal superposition method, the dynamic response of high power steam turbine control stage is analyzed. The control stage is subjected to steam exciting force in two valves open condition. Based on the results of static calculation, the fatigue life of the control stage is analyzed.

关 键 词：调节级 动力学 疲劳 模态叠加法 超单元 

分 类 号：TK263[动力工程及工程热物理—动力机械及工程]