摘要
水轮机转轮的叶片出现裂纹会严重威胁水电厂的安全经济运行。通过对水轮机转轮叶片进行有限元计算分析,得出应力过于集中通常是叶片裂纹产生的主要原因,此外,叶片也存在设计、制造、运行方面的问题,为此,介绍了水轮机转轮叶片裂纹金属无损探伤的常用处理方法和一般工艺。
Cracks on water turbine impeller blades will seriously imperil the safe and economic operation of hydropower plants. Through finite element analyses on the blades, it is concluded that the cracks are mainly induced by over-concentrated stress besides problems in the design, manufacture and operation of the blades. Common methods and general procedures of non-destructive testing on the cracks are also described in this paper.
出处
《广东电力》
2003年第6期70-72,共3页
Guangdong Electric Power
