Experimental Modal Analysis of a First Stage Blade in ALSTOM Gas Turbine

被引：1
|
作者：
Rahmani, Arash [1 ,2 ]
Ghanbari, Ahmad [2 ]
Mohammadi, Ali
机构：
[1] Islamic Azad Univ, Ajabshir Branch, Dept Engn, Ajabshir, Iran
[2] Univ Tabriz, Dept Mech Engn, Tabriz, Iran
来源：
ADVANCED DEVELOPMENT IN AUTOMATION, MATERIALS AND MANUFACTURING | 2014年 / 624卷
关键词：
Experimental Modal Analysis; Gas Turbine Blade; Natural Frequency; Mode shape; FAILURE ANALYSIS; VIBRATION;
D O I：
10.4028/www.scientific.net/AMM.624.303
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
Failures of turbine blades are one of the most critical problems in power generating industry. Among the different failure mechanisms, resonant vibration of blades has a major role and therefore is the subject of many recent research works. Therefore, in this paper, modal analysis of a first stage blade in ALSTOM gas turbine is investigated and natural frequencies and vibration modes of blade are found in various conditions. For this purpose, a cloud-point model of a gas turbine blade has been created using 3D Laser Digitizer. Then the numerical calculation by finite element method using ANSYS software based on experimental test conditions is utilized and Experimental natural frequencies have been obtained. The results show acceptable agreement between the experimental and FEM results.
引用
收藏
页码：303 / 307
页数：5
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