本文基于二阶摄动技术研究叶片强度分析的随机有限元方法。
Based on the second-order perturbation technique, the stochastic finite element method (SFEM) of the strength analysis of the turbine blade is introduced in this paper.
航空发动机空心涡轮叶片的壁厚是保证叶片强度的一个关键参数。
The wall thickness of the hollow aeroengine turbine blade is a critical parameter for ensuring its strength.
着重闸述了基本原理、叶片强度校核、作图方法及平衡检验的要求。
Emphasis is given to the fundamentals of design, check for blade strength, plotting procedures and the requirements for balance check.
课题组开展了各向异性单晶叶片强度分析和寿命预测方面的一些研究工作。
Some researches on the strength analysis and the life prediction of the anisotropic single crystal blade were carried out by the authors' research team. They are as follows.
针对珠江电厂循环水泵供水不足、泵叶片强度不够等问题，对循环水泵进行了增流节能技术改造。
In the view of insufficiency in water supply of circulation water pumps in ZhuJiang power plant, the circulation water pumps were retrofitted with the aim of increasing flow rate and saving energy.
实际分析的结果表明：计算结果与采用整体模型的相同，大大节省了多联装静子叶片强度分析的时间。
The results show that the calculation results is identical to the results of integral model used and the time of multiple cluster stator blades strength analysis is also saved.
在校核叶片强度时，由于叶片形状是空间扭曲的，相当不规则，很难分析叶片表面的水压力，所以研究人员通常用把叶片简化成悬臂梁进行分析。
The water pressure is difficult to analyze because of the complex shape the blade takes. So many designers of pump simplify the blade as cantilever girder.
每片涡轮机叶片由高强度单晶合金制成，上面覆盖强韧陶瓷涂层。
Each blade is grown from a single crystal of alloy for strength and then coated with tough ceramics.
提出了一种新的振动搅拌方案，其特点是搅拌叶片在工作时处于共振状态，以解决振动强度大和机器寿命的矛盾。
A new vibratory mixing plan with features that the mixing plate is in resonance when mixer works is presented to solve the contradiction between the vibratory intensity and mixer life.
对某发电厂大型鼓风机转子轮盘强度进行了有限元计算与分析，确认了转子轮盘在出现沿叶片外弧的弧形沟槽后，略加修复仍可安全使用。
This text made FEM calculation and analysis for rotor disk of heavy blower in a plant, and found that the disk can be reused safely again after the arc grooves along outside of blade being repaired.
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 .
不同DCMU浓度处理叶片后延迟荧光强度与叶片光合速率的变化表现出很好的相关性。
With the different concentration of DCMU treatment, the intensity of the DF and net photosynthesis rate (Pn) behaved excellent correlation.
叶片振动测量对航空发动机、电站涡轮机及各种压气机的强度设计和研究及安全监测非常重要。
It is important to measure blades vibration for the intensity design and for safely monitor of air engines, turbines of power station and compressors.
通过砂丸敲击工件表面，消除应力，增加工件表面强度，如弹簧、机加工刀具和飞机叶片等工件的表面处理。
Through the sand pill on the workpiece surface, eliminating stress, increase the surface strength, such as spring, machining tool and workpiece surface treatment such as plane blade.
本文提出了透平叶片疲劳强度的可靠性设计方法。
A reliability design method is presented for fatigue strength of turbine blades.
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.
介质腐蚀和通道状况的影响是汽轮机叶片动强度设计中主要考虑的因素。
The effects of corrosion and steam passage situations are the important factors in the design of steam turbine blade dynamic intensity.
研究了在制造单晶叶片的壳型中添加矿化剂提高壳型高温强度的机理。
The mechanism of adding mineralizer in single crystal blade casting shell mould for enhancing high temperature strength has been studied.
所提供的开关叶片采用铍铜合金制造，铍铜合金在弯曲记忆区域、抗张强度和耐腐蚀等指标均优于不锈钢。
The supplied paddle is made of beryllium copper and superior to stainless steel in the area of flex memory, tensile strength and corrosion resistance.
它们之间的差异说明穗颈节间的伤流强度不但与根系活力有关，可能与叶片、茎鞘及库容活性也有密切联系。
Difference of them prove flow intensity of spike neck not only relate to roots vigor, may have close ties with the leaf, stem sheath and activity of capacity of reservoir.
叶片的光合生产能力直接受光照强度的制约，同时还受气温和空气相对湿度的影响。
Photosynthetic productivity of the leaves is affected by temperature and relative humidity of air as well as directly constrained by intensity of the sunlight.
本文以菠菜叶片作为实验材料，从DF衰减动力学及其总强度的变化研究了DCMU对植物光合作用的影响。
In this paper, with spinach as a testing material, we studied the effects of DCMU on photosynthesis of plant from the characteristics of DF decay kinetic curve and its total intensity.
其叶片光合强度、还原糖含量和中性与酸性蔗糖酶活力均高于未施用乙烯利的。
The photosynthetic rate, content of reducing sugar and the activities of neutral and acid sucrase in leaf are all greater than that used no ethephon.
渐缩型间隙在叶片前半轴弦受到上通道涡的抑制，减少了叶顶间隙泄漏涡的强度和范围；
Suppressed by the up passage vortex at upstream side of blade, the intensity and scale of the tip clearance leakage vortex is decreased.
郑明。光照强度对烤烟生长发育和叶片组织结构及品质影响的研究[d]。长沙：湖南农业大学，2010。
Zheng M. Study on effect of light intensity on growth and leaf tissue structure and quality characteristic of flue-cured tobacco [d]. Changsha: Hunan Agricultural University, 2010.
利用SDS - PAGE电泳分析法探讨干旱对供试苜蓿品种叶片可溶性蛋白的变化及其与干旱强度的关系。
Using SDS-PAGE electrophoresis analytic method, a study on the change of drought-induced protein in leaves of alfalfa cultivars under different extents of drought stress was conducted.
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.
在形态学上，美国品种能随光强度的增强而增加叶片厚度，而桂朝2号则不能。
Morphologically, the leaf thickness of US rice could increase as the light intensity increased, but couldn't for Gui-Chao 2.
在形态学上，美国品种能随光强度的增强而增加叶片厚度，而桂朝2号则不能。
Morphologically, the leaf thickness of US rice could increase as the light intensity increased, but couldn't for Gui-Chao 2.
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