本文目的就是要建立一套适合于水轮机转轮叶片刚强度与振动的分析模型和计算方法。
This thesis aims at developing a model and calculation method of rigidity, strength and vibration of the blade .
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。
Cracks in Francis turbine runner blades threaten the safety, stability and economic profits of the hydropower station.
在全站仪测定一定数量的3维控制点后，利用数码像机进行近景摄影测量，加密测绘水轮机转轮叶片。
After having measured some 3d control points by total station, the digital close range photogrammetry and surveying the Vance of water wheel can be made.
本文通过分析近期的现场测试数据，给出了混流式水轮机转轮叶片在启动、甩负荷、停机三种过渡工况下的应力状态。
This paper describe the blade stress state of Francis turbine in the course of starting, load rejection, stalling by analysing the field test data.
水轮机转轮叶片的刚强度与振动特性分析对水轮机的优化设计、稳定运行、防止事故发生等都有重要的理论与实际意义。
Rigidity, strength and vibration analysis are important to the blade of hydrodynamic turbine, both in theoretical and actual fields, such as optimum design, stable operation and damage preventing.
本文针对水轮机修复专用机器人视觉系统，采用基于三角测量原理的主动视觉法中的激光扫描法对水轮机转轮叶片缺陷进行检测。
The paper adopts laser scanning of the method of positive vision basing on the principle of triangle measure to detect the drawback of hydraulic turbine blade.
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。
Cracks on water turbine impeller blades will seriously imperil the safe and economic operation of hydropower plants.
开展真机转轮叶片动应力试验研究是解决大型水轮机转轮开裂的关键。
Testing research of dynamic stress in turbine blade is the key for solving the crack of runners.
开展真机转轮叶片动应力试验研究是解决大型水轮机转轮开裂的关键。
Testing research on dynamic stress is the key to solve the cracking problem of large water turbine runners.
实践证明，水轮机叶片数控加工工艺方法具有加工效率高、精度高等优越性，使转轮加工质量大幅度提高。
Practice proved that the nc machining of hydraulic turbine blades features high machining efficiency and high accuracy, and dramatically improves the machining quality of turbine wheels.
本文根据流体机械准三元流动理论，以叶片式流体机械转轮的设计研究方法为出发点，针对斜流式水轮机转轮设计方法进行了理论探讨。
According to the quasi-three dimensional theory of hydraulic machinery, this paper discussed the runner design method of the diagonal turbine, based on the blade turbine runner design theory.
现实中，在大型水轮机长期的使用过程中转轮叶片会出现断裂的情况，这种断裂是在设计寿命之内发生的，对转轮的使用产生了极大的威胁。
In reality, long-term use of large turbine runner blades during the break occurs the situation, this fault is occurring within the design life, it pose a great threat to use of the runner.
开展水轮机转轮动应力现场测试是叶片裂纹原因分析的重要手段之一。
The test of runner dynamic stresses and unit stability of Tishrin Unit 2# were carried out in order to solving the problem of blade cracks.
通过数值模拟首次实现了混流式水轮机转轮内王维空化流场和叶片上三维空穴区域的预测。
The 3d cavitation flow field in the turbine runner and 3d cavity region onthe blade are predicted by the numerical simulation firstly.
欲提高贯流式水轮机的使用水头，应改进转轮叶片的设计方法，以设计出能量和气蚀性能良好的高水头贯流式水轮机。
To increase the head of bulb turbine, it is necessary to improve the runner blade design method and design high head bulb turbine with good energy and cavitation coefficient performance high.
欲提高贯流式水轮机的使用水头，应改进转轮叶片的设计方法，以设计出能量和气蚀性能良好的高水头贯流式水轮机。
To increase the head of bulb turbine, it is necessary to improve the runner blade design method and design high head bulb turbine with good energy and cavitation coefficient performance high.
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