630℃超超临界二次再热汽轮机末级长叶片振动特性分析  

Analysis of Vibration Characteristics of 1450mm Last Stage Long Blade of 630℃ UltrasupercriticalReheat Steam Turbine

作　　者：李立波 李帅 杜悦 徐荣冬[3] LI Li-bo;LI Shuai;DU Yue;无(Datang Northeast Electric Power Test Research Institute;Datang Yuncheng Power Generation Co.,Ltd.;Dongfang Steam Turbine Co.,Ltd.)

机构地区：[1]大唐东北电力试验研究院有限公司,吉林长春130000 [2]大唐郓城发电有限公司 [3]东方汽轮机厂有限责任公司

出　　处：《电站系统工程》2024年第6期44-46,共3页Power System Engineering

摘　　要：针对630℃超超临界二次再热1450 mm末级长叶片的结构特点,利用有限元法及试验方法对叶片的气动、强度和振动特性进行了详细的分析,分析结果表明该叶片具有良好的成圈振动特性,满足叶片安全要求。Based on the structural characteristics of the 1450mm end-stage long blade reheated by 630℃supercritical fluid, the aerodynamic, strength and vibration characteristics of the blade are analyzed in detail by using the finite element method and experimental method, the analysis results show that the blade has good vibration characteristics in a ring and meets the safety requirements of the blade.

关 键 词：630℃ 叶片 振动特性 强度 

分 类 号：TK263[动力工程及工程热物理—动力机械及工程]