透平葉片 的英文怎麼說
中文拼音 [tòupíngyèpiān]
透平葉片
英文
segment of blading-
It is important for the design of air cooling steam turbine and the performance and stability of turbine to study unsteady flow mechanism in design and off - design state
深入了解透平葉片在設計狀態和高背壓條件下的非定常流動機理，能更好設計空冷汽輪機以及提高葉輪機械的性能和穩定性。The flow of turbine in design and off - design state was simulated by the method of numerical simulation of 3 - d viscous flow, and the flow mechanism in design and off - design state was studed
主要利用三維粘性非定常數值模擬的方法對設計狀態和高背壓條件下透平葉片內部的流動進行模擬，並分析了設計狀態和高背壓條件下非定常流動機理。A full mathematical model of optimal flow pattern design withengineering constraints was put forward, based on modern optimal control theory. an optimal flow pattern design was presented for optimizing meridional channel of axial flow turbine. according to integral optimization of turbine stages, a full physical model and mathematical expression were put forward for proposition of optimal flow pattern, including all performance parameters in turbine stages. this problem was further recast into a typical form control to maximize specific performance index such as work or efficiency of stage with given initial state, fixed terminal condition and constraints for part of state terminal variables. the program was also worked out according penalty function method and conjugate gradient method. the optimal distribution of c1ur1 ( r1 ) was obtained according to constraint conditions and maximized objective function
把近代最優控制論方法引入軸流透平葉片的設計，在優化的軸流透平子午通道內，建立包括透平級內所有性能參量的最優流型命題的完整的物理模型及其數學表達式，並歸化為一個在給定初始狀態、自變量終端固定、部分狀態變量終端受有約束的條件下，使級的某一性能指標（如級的功率）達到最優的最優控制問題，應用「代價函數法」及「共軛梯度法」編制計算程序，計算得到符合給定約束條件、並使目標函數取極值的最優環量分佈，結果是令人滿意的。A retrofit design of the damaged impeller in a dynamic turbine was made based on the analysis of the accident
針對某化工動力透平的事故葉片在事故分析的基礎上進行改型設計。Adding damped structure can decrease dynamic stress of blade and avoid blade fatigue failure from forced vibration
摘要為了防止透平機械長葉片因振動而導致的疲勞損壞，目前普遍採用的方法是在葉片上增加摩擦阻尼結構。Now we provide kinds of unit blades for hangzhou turbine co., ltd, hangzhou zhongneng turbine power co., ltd and qingdao huajie turbine power co., ltd, as well as provide hangzhou turbine co., ltd with three series of blades of siemens technology
現主要為杭州汽輪機股份有限公司，杭州中能汽輪動力有限公司，青島華捷透平動力有限公司等公司，提供各種機組的各種葉片，同時為杭州汽輪機股份有限公司提供西門子技術的各種三系列葉片。The outlet flowfield and static pressure on blade surfaces of the classical turbine stator cascades with straight and - 10 、 - 20 bowed blades were measured in the linear cascade wind tunnel
摘要在平面透平葉柵風洞中，測量了一種典型透平靜葉型直葉片葉柵和葉片彎曲角分別為- 10 、 - 20的反彎曲葉片葉柵的出口流場和葉片表面靜壓。The paper analyze the limitations of serial gas turbine model, take single axis gas turbine as prototype, with the intensive analyzes and profound of the principles and characteristic of the object, using the modular modeling method proposed the dynamic model of gas turbine, which including the model of compressor, combustor, turbine. with respect to the purposes and key points of establishing model, the model is simplified. the intensive cooling of turbine blades is also modeled
在建模過程中，結合本文建模的目的和重點，對原型作了合理的簡化，考慮了壓氣機抽氣對透平葉片的冷卻，對壓氣機和燃氣透平按級進行分析和處理，採用模塊化建模的方法分別建立了燃氣輪機主要部件壓氣機、燃燒室、燃氣透平的動態數學模型，所建模型比集總參數模型具有更好的精確性。A nonintrusive techique for monitoring rotor - blade vibration using light probes has been applied to turbine - engine rotors and plant rotating equipment
一種非接觸式光探頭測振裝置已成功應用於透平機轉子葉片狀態檢測及其他旋轉機械的振動檢測。When entering the crisp and tender period that the length of kelp reach about 1m, the leaf has already formed certain straight part, the layer of water should be lifted ( 12 of the transparency )
當海帶長到1m左右，葉片已形成一定的平直部分，進入脆嫩期時，要提升水層（透明度的二分之一） 。Furthermore, the content of na + and cl - in the leaves was positively correlated with the electrolyte leakage an d the content of mda of leaves, and the correlation levels of the content of na + and cl " and the electrolyte leakage are significant
並且，菊芋幼苗葉片中na ~ + 、 cl ~ -含量的增加與電解質滲透率和丙二醛含量增大均呈正相關，其中電解質滲透率的增大與na ~ + 、 cl ~ -含量的增加達到顯著水平。Causes leading to fracture failure of blade in the first - phase nozzle of gas turbine
燃氣輪機透平噴嘴葉片斷裂失效分析分享友人