轉動葉片 的英文怎麼說
中文拼音 [zhuǎndòngyèpiān]
轉動葉片
英文
moving blade
-
轉 :
轉構詞成分。
-
片 :
片構詞成分。
-
轉動 :
轉動turn; run; twirl; roll; revolve; rotate
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Fracture analysis for rotor turbine blade in aero - engine
某發
動機渦輪
轉子
葉片斷裂原因分析
-
The blades at its periphery throw off air centrifugally in a direction following the rotation.
輪周
葉片將空氣沿著
轉動方向拋離軸心。
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The transient cfd simulation including the spiral case, stay vane, guide vane, runner vane and draft tube at different operation points is studied fitly, then the result of the pressure distribution on runner blade is provided for the runner transient structural simulation by fluid - structure interaction ( fsi ) method
文中首先對高水頭小負荷的渦帶工況下混流式水輪機內流場進行非定常cfd計算,得到渦帶工況下
葉片表面不同時刻的水壓力載荷,並利用流固耦合方法對
轉輪進行結構場瞬態特性計算,分析
轉輪
葉片的
動應力特性。
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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,國內水輪機
轉輪
葉片修復仍採用手工補焊、人工打磨等檢修手段,工人勞
動環境惡劣,勞
動強度大,且檢修效率低,質量差。
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The result indicates that the dynamic stress caused by hydraulic pulse at partial load is one of the important reason of the fatigue and cracks of the runner
結果表明由於水壓力脈
動引起的
轉輪
葉片上的振
動交變
動應力是混流式水輪機疲勞破壞的主要原因之一。
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Operation, leaves the air by centrifugal force intermediate role to the brink of incompetence impeller movement into bengti circular cavity at, and then returned to impeller, re - starting from the leaves of the cycle in the same way again
運
轉時
葉片中間的空氣受到了離心力的作用,向
葉輪的邊緣無能運
動,進入泵體的環形空腔,然後又返回
葉輪,重新從
葉片的起點以同樣的方式再進行循環。
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With the phenomena of dropping flow, backflow and secondary flow effected by circulation and surface curvature, the centrifugal pump ' s inner flow is very complicated 3d flow. therefore, the centrifugal pump inner flow is one of the difficult problems both in testing research and numeric computation
離心泵
葉輪的內部流
動是很復雜的三維紊流流
動,同時由於受旋
轉和
葉片表面曲率的影響還拌有脫流、迴流及二次流的現象,是流體工程中較難的試驗研究和數值計算問題之一。
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At the same time, tip leakage induced by pressure gradient and relative motion between the blade tip and the shroud wall is found to have a major influence on detailed flow properties in tip region of rotor passage
同時,由於
轉子
葉片壓力面和吸力面之間壓力梯度以及
葉頂與機匣之問的相對運
動產生的間隙流對
轉子通道內的細微流
動結構有較大的影響。
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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,水力激勵引起的混流式水輪機
轉輪
葉片動應力是引起
葉片疲勞破壞的主要原因之一。
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Introducing and exploring a repair robot used for welding and grinding on the turbine blades is very useful for those plants
為了減少此項工作的勞
動強度,提高維護、維修的效率,我們引進並自行開發了用於水輪機
轉輪
葉片修復用的專用機器人。
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The compressor exists about 0. 265 rotor blade converted frequency near stall point, its intensity increases with rising of rotating speed and reducing blade row spacing. the blade row spacing would exert influences on rotor - stator interaction, stability and stall mode
在臨近失速點處,不同工作
轉速、不同
動?靜
葉排軸向間距均存在約為0 . 265
轉子
葉片摺合頻率的特徵頻率擾
動,強度隨
轉速的上升和軸向間距的減少而增大。
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An aeroengine power - turbine 1 ( superscript st ) stage rotor shrouded blade is taken for an example in the article, tightness of shroud and contact force 、 blade body stress under working state and assembly state are calculated by finite element contact analysis method, influence of working load ( temperature and centrifugal force ) is mainly analyzed
摘要以航空發
動機
動力渦輪一級帶鋸齒形
葉冠的
轉子
葉片為例,用有限元接觸分析方法對裝配和工作狀態下的
葉冠緊度和
葉冠接觸力、
葉身應力進行了計算和分析,著重考察了工作載荷(溫度和離心力)對
葉冠接觸力的影響。
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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。
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Full - scale structural testing of rotor blades
發
動機
轉子
葉片的全尺寸結構試驗
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In fact, the outlet flow of vane in the hydroelectric set is non - uniform flow for a variety of possible reasons. the flow is unsteady flow relative to vane and blade, and it is the main factor that affect self - excited vibration and dynamic characteristic of guide vane and hydraulic - turbine, which affect directly the power set to run safely and stably
非均勻來流相對于導
葉、
葉片必然是一種非定常流。這種非定常流造成導
葉和
轉輪
葉片的激振,是產生導
葉和
葉片動應力,改變它們頻率的最主要因素,而導
葉和
葉片的
動力特性直接影響水輪機的穩定性。
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Failure analysis for compressor blade of the fourth stage in an aero - engine
某型航空發
動機壓氣機四級
轉子
葉片失效分析
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Main working principal is that the bottom scraper with low rotate speed impels materials to form circumfluence in the basin of machine, the impeller of rotor rotating with medium speed can not only add wallop to sand, but also can add shear force to the sand with scraper so that the sand can touch and scrub each other fast ; wind blasting is set to cool the hot sand, remove dust and strip the membrane so that fast speed of regeneration and top - grade used sand can be gained
主要工作原理是低速
轉動的底刮板推
動物料在機盆內形成環流,中速
轉動的
轉子
葉片既對砂子施以沖擊力,又與刮板配合對砂子施以剪切力,使砂粒間快速接觸和強烈摩擦,圍圈設風帶鼓風使熱砂沸騰冷卻除塵脫膜,從而達到再生速度快,回用砂質量好的目的。
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3d linear interpolation method was used to transform displacement and force data between fluid and solid structure meshes in an indirect fluid - solid interaction simulation. by computing an axial - flow compressor blade, results show that 3d linear interpolation method is an effective method and indirect fluid - solid interaction suit for engine blade simulation. software integration is feasible method for coupling
提出一種對發
動機
葉片及通道進行氣
動、結構的間接流固耦合交替計算方法,並採用三維線性插值方法對ansys和fluent中的網格數據進行變換,並對不同材料和不同
轉速
葉片的模型進行流固耦合計算,結果表明三維線性插值方法是一種簡單、計算量小、可行的數據交換方法。
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On the rotor blade pressure surface, the dominant frequencies of unsteady surface pressure are the up - stream blade wake passing frequency and its harmonics, and the amplitudes of pressure fluctuations decrease from leading edge to trailing edge
轉子
葉片吸力面非定常壓力受
葉片附面層和上游
葉片尾跡共同影響,其主導頻率為上游
葉片尾跡頻率及其倍頻,但是在吸力面前部氣流加速區壓力波
動幅度沿流向增大,而在吸力面後部氣流減速區壓力波
動幅度沿流向減小。
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Failure and lesson of turbo ratation blades for aero - engines
航空發動機渦輪轉子葉片的失效與教訓