300MW汽轮机低压级扭叶片的模态测试与分析  

Modal Measurement and Analysis of Twisted Blade in Low-pressure Stage of 300MW Turbine

作　　者：王玥[1] 盛德仁[1] 陈坚红[1] 李蔚[1] 任浩仁[1] 

机构地区：[1]浙江大学

出　　处：《电站系统工程》2004年第1期62-63,共2页Power System Engineering

摘　　要：应用模态分析的基本原理,提出了扭叶片模态测试的方法。对国产300 MW汽轮机低压级的扭叶片进行自振频率与振型的测试与分析,将所得的测试结果与有限元计算结果比较,结果相吻合。该测试方法为测量扭叶片频率和各阶复杂振型提供了可靠的依据。By using the fundamental theory of modal analysis, the method of modal measurement is presented and the way to measure the modal parameters of twisted blade in low-pressure stage of 300 MW turbines is given. Comparing the modal result with the finite element result, the self-oscillation frequencies and modes are almost same,so the modal measurement provides the way how to get and analysis self-oscillation frequency and mode of twisted blade.

关 键 词：300MW汽轮机 低压级扭叶片 模态测试 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]