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水轮机叶片     
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  hydraulic turbine blade
Mobile platform for hydraulic turbine blade repair robot
      
The wall-climbing mobile platform (MP) of a robot for repairing a hydraulic turbine blade onsite is developed.
      
The platform can automatically adapt to complex spatial surfaces, which satisfy the requirements of a hydraulic turbine blade in-situ repair robot.
      
The system was specifically developed to measure two types of hydraulic turbine blade with dimensions of approximately 1.5m x 1.5m x 0.5m.
      
  turbine blade
Mobile platform for hydraulic turbine blade repair robot
      
The wall-climbing mobile platform (MP) of a robot for repairing a hydraulic turbine blade onsite is developed.
      
A mechanism of three revolution degrees of freedom, which connects the magnetic devices with the platform's chassis, is developed to make the platform self-adapt to the complex curved surface of the turbine blade.
      
The platform can automatically adapt to complex spatial surfaces, which satisfy the requirements of a hydraulic turbine blade in-situ repair robot.
      
Probability strength design of steam turbine blade and sensitivity analysis with respect to random parameters based on response
      
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Hammer impact method is developed based on the high speed Fourier analyzer. Recently, it has been used in the analysis of analogue result of water turbine components. The results of the analysis well agree with the results of conventional tests and completely meet the requirement of actual projects. The analogue results obtained from the water turbine in Gezhouba have been used by the author in his evaluation of the vibration characteristic of turbine blade and a nomographic chart indicating the relationship...

Hammer impact method is developed based on the high speed Fourier analyzer. Recently, it has been used in the analysis of analogue result of water turbine components. The results of the analysis well agree with the results of conventional tests and completely meet the requirement of actual projects. The analogue results obtained from the water turbine in Gezhouba have been used by the author in his evaluation of the vibration characteristic of turbine blade and a nomographic chart indicating the relationship between speed and speed-affected frequency, Karman eddy frequency and blade inherent frequency is developed on that basis. The chart is of valuable reference to the design of turbine.

锤击法就是在利用FFA的基础上发展起来的一种测试技术。近年来,曾将该项技术应用到水轮机部件模态参数的分析中,并与传统试验结果进行比较,能完全满足工程需要。 作者将葛洲坝水轮机叶片模态分析结果,应用到叶片振动特性的估价中,绘制了转速及其派生的频率,卡曼涡频率与叶片固有频率关系的诺模图,可供设计参考。

The blade surface is defined by B - spline surface and a way of drawing 3D picture of the runner is presented in this paper. By taking Francis runner as example,the picture is clear and stereo and the images are more realistic.

采用B样条曲面拟合水轮机叶片曲面,以混流式水轮机转轮为例,进行了计算三维图形设计.从计算机显示的图形看:图形画面清晰、色彩鲜明、真实感强,并能直接用于检验叶片设计的光滑性和合理性.该软件可用于任何复杂形体的三维图形设计,能够满足工程设计的要求.

The researching content and method of the computer aided measuring system for turbine blade, basic principle and function of the system, its application in the production are introduced in this paper.

本文介绍了水轮机叶片计算机辅助测量系统开发研究的内容和方法,系统的基本原理和功能,以及系统在生产实践中的应用情况。

 
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