1000MW超超临界汽轮机末级长叶片多阶静频分析  

Analysis on Multi-order Static Frequency of Last Stage Long Blade of 1000MW Ultra Supercritical Turbines

作　　者：秦人骥 邹维平 杨海东 范菲 

机构地区：[1]无锡透平叶片有限公司,无锡214023

出　　处：《发电设备》2009年第4期288-290,共3页Power Equipment

摘　　要：汽轮机动叶片振动问题是叶片运行过程中的主要问题。为使机组安全运行,对于新制造的动叶片,通常需要测定和调整单个叶片的各阶静频。分析了汽轮机叶片的各阶频率的计算方法。以1146 mm末级长叶片为例,介绍了其结构,分析了其静频率振动特性。Turbine blade vibration is the main problem in turbine blade operation. To guarantee safety operation of turbine unit, the static frequency of all orders of each newly manufactured moving blade should be measured and adjusted. Taking the 1 146 mm last stage long blade as an example, specific calculation method for every order of turbine blade static frequency is being presented, while its structure described and vibration characteristics analyzed.

关 键 词：汽轮机 末级长叶片 多阶静频 振型 

分 类 号：TK263.3[动力工程及工程热物理—动力机械及工程]