摘要
阐述了引进型300MW、600MW汽轮机次末级"474"、"475"叶片安全性分析的思路,指出了"474"、"475"叶片二阶频率振型的不同是"474"叶片失效、"475"叶片安全运行的关键。
View on Security analysis of the penultimate stage '474' & '475' blades of the imported 300MW and 600MW steam turbine is made clear, which shows that the difference of the second mode of frequency vibration between the two kinds of blades is the key to the invalidity of '474' blade and safe operation of '475' blade.
出处
《热力透平》
2004年第1期46-49,共4页
Thermal Turbine
