最后给出了某电站转轮叶片的有限元分析网格的图形。
At last, we have drawn some mesh pictures of finite element analysis for a certain hydraulic power station's runner...
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.
指出了转轮叶片轴套采用GS—2材料轴套的一些优点及真机应用实例。
The advantages of runner blade sleeves with gs-2 material and their application examples are indicated.
根据液相和固相三维流速场的计算结果数值模拟了转轮叶片面的泥沙磨损。
Based on the calculated liquid and solid phase velocity fields, the numerical simulation of silt abrasion on runner blade surfaces has been carried out.
文中还介绍了该方法在轴流式模型转轮叶片上的应用，并获得了满意的结果。
And an application of this method for measuring of the model runner blade of axial type is also presented, and the results of measurement are satisfactory for use.
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.
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 .
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.
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.
通过电站真机与模型转轮应力测试结果的分析证明，混流式转轮叶片应力与机组出力之(？)存在线性关系。
In this paper, the stresses analysis on prototype runner in power station and model runner proved that there is a linear relationship between blade stress and output of Francis turbine.
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.
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.
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。
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.
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.
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.
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。
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.
本文采用有限元法对带半叶片的混流式转轮的S1流面进行了流场计算。
In this paper, the finite element method is used for the calculation of S1 streamline surface of Francis turbine runner with half vanes.
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.
通过采用合理的铸造工艺，确保了其叶片型线尺寸精度、转轮表面质量及铸件内部的致密度满足了设计要求。
By adopting appropriate foundry techniques, the accuracy of dimension and shape were ensured. The surface quality and internal density of runner meet the requirements of design.
本文作者定量分析计算由转轮有限叶片数引起的叶片出口相对速度分布状态，并以所获结果提出了改善叶片设计的措施。
The author of this paper analyzes and calculates the relative velocity distribution at the blade exit of runner caused by limited blades and offers the way to improve blade design.
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.
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.
分析了叶片数、叶片局部加厚、上冠下环厚度等因素对转轮强度性能的影响。
The factors of effecting runner intensity performance such as the blades number, local thickness of crown and band are analyzed.
本文介绍关于两种转子叶片振动特性的比较研究，这两种叶片分别是用销钉和纵树形或燕尾形榫头联接到旋转轮盘上的。
This paper introduces a comparative study of vibration characteristics of two types of rotor blades that are attached to the disk by fir-tree root and pin respectively.
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.
里石门水电站不锈钢整铸转轮尺寸小、叶片簿、叶片间隙小，整体结构不利于铸件的顺序凝固和补缩。
The technique of stainless steel integral cast runner for Lishimen water power station is presented in this paper.
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.
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.
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