| 1. | A measurement method applied to detect the dfects of the turbine blades
水轮机转轮叶片表面缺陷的检测方法 |
| 2. | Cracks in francis turbine runner blades threaten the safety , stability and economic profits of the hydropower station
摘要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。 |
| 3. | The repair and preservation work of the turbine blades is the international problem for all the hydro power plant
对水轮机转轮叶片的维护与维修是各国水电部门的一项重要工作，每年都要在其上耗费大量的人力、物力、财力。 |
| 4. | Researches show that high dynamic stress caused by hydraulic loads is the most important reason of the fatigue and cracks of the runner
研究表明，水力激励引起的混流式水轮机转轮叶片动应力是引起叶片疲劳破坏的主要原因之一。 |
| 5. | Introducing and exploring a repair robot used for welding and grinding on the turbine blades is very useful for those plants
为了减少此项工作的劳动强度，提高维护、维修的效率，我们引进并自行开发了用于水轮机转轮叶片修复用的专用机器人。 |
| 6. | At present , the means for repairing hydraulic turbine blades in our country are still manual weld and manual polish . the working condition is bad and labour intensity great for workers and overhaul efficiency low and inferior
目前，国内水轮机转轮叶片修复仍采用手工补焊、人工打磨等检修手段，工人劳动环境恶劣，劳动强度大，且检修效率低，质量差。 |
| 7. | The repair and maintenance work of the turbine blades is the international problem for all the hydro power plant . a lot of manpower and resources is costed every year , especially in china , because the rivers contain plentiful sand , the problem is more serious
水轮机转轮叶片的维修与维护一直是各国水电部门的一项重要工作，每年都要对其耗费巨大的人力、物力、财力，尤其是我国河流泥沙含量大，此项工作就更为艰巨。 |
| 8. | The consequence of computation indicated above method not only can approach turbine blade surface accurately but also can be provided for extend and intersection while the precision can be controlled . it realized anticipated goals of the application of turbine blade and engineering exercises . thus , it provide the foundation to the reconstruct and optimize design of turbine blade as well as the cam of turbine blade
算例结果表明，上述方法不仅可精确拟合混流式、轴流式水轮机转轮叶片，而且还能对叶片进行求交、延展运算并控制精度，实现了nurbs曲面造型技术应用于水轮机叶片设计和工程实际的预期目标，为水轮机叶片的改型设计和优化设计、水轮机叶片的计算机辅助制造打下了基础。 |
