Cracks in Francis turbine runner blades threaten the safety, stability and economic profits of the hydropower station.
混流式水轮机转轮叶片裂纹故障严重影响了水电站的安全稳定运行和经济效益的发挥。
A new method for measuring runner blades of hydraulic machine, known as the fine moire pattern, based on principle of optical interference is introduced.
本文介绍了一种利用光学干涉原理检测水力机械叶片的新方法，即密栅云纹法。
Its development success makes the manufacturing precision of runner blades higher, leads to increase the efficiency of hydro-turbine, and produce the big economical and social benefit.
它的研制成功，极大地提高了叶片的制造精度，进而提高了水轮机的效率，产生了巨大的经济和社会效益。
The welding residual stress of the runner is the main reason which leading to the fault of the runner blades, so the study on the welding residual stresses of the runner blade is necessary.
其中转轮的焊接残余应力是导致转轮叶片出现断裂的主要原因，所以对转轮叶片上的焊接残余应力的研究是非常有必要的。
It has the following features: the runner blades themselves are the samples, the test medium is the original silt-laden water from the river course of Yellow river and the test period is short.
其特点在于试验转轮体叶片即为试件，试验介质为黄河天然含沙水并能在短时期内出成果。
This approach effectively solved the problem of runner blade Angle adjustment and is able to rapidly design runner blades with good performance.
这种方法有效地解决了调节转轮叶片出口角度的困难，能较快的设计出性能良好的转轮。
This approach effectively solved the problem of runner blade Angle adjustment and is able to rapidly design runner blades with good performance.
这种方法有效地解决了调节转轮叶片出口角度的困难，能较快的设计出性能良好的转轮。
应用推荐