轉葉式水輪機 的英文怎麼說
中文拼音 [zhuǎnyèshìshuǐlúnjī]
轉葉式水輪機
英文
adjustable blade wheel-
A pcc based stepping motor driven dual control governor for kaplan turbine is presented in this paper. the governor adds the function of adaptive control of blades and radius basis function cam network based on the current pcc based stepping motor driven single control governor
該調速器在當前pcc步進式水輪機單調整調速器的基礎上引入了槳葉自適應控制和基於rbf網路的協聯裝置，可定期對轉槳式水輪機協聯關系進行自校正，保證水輪機始終運行在較高效率區。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。Aiming at the problems in the field of the government for hydraulic turbine, this thesis applies the technology of programmable controller to the speed control of hydroelectric generators in hydropower station. a digital regulating system based on the fx2 programmable controller for the water - gate and paddle of hydraulic turbine is developed. first, the turbine regulating system is briefly introduced and the mathematics model of the system is derived
本文針對當前我國水輪機調速器領域技術現狀，將可編程式控制制器技術應用於水電廠發電機組的轉速控制，提出了在應用可編程式控制制器實現導葉控制系統的基礎上，以可編程式控制制器實現導葉、輪葉雙調整控制系統，並參與研製了以fx2可編程式控制制器為核心的水輪機雙調節控制器，樣機的實際運行良好，系統的軟硬體設計得到驗證，結果令人滿意。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。For the vertical - axis variable - pitch cycloidal rotor, the article unify hydrodynamic performance symbol at first, classify and trim the calculation methods and formula of predicting fluid dynamical capability of water - power rotor and wind - power wheel that have been formed up to now
對于可調角直葉擺線式水輪機，首先統一定義了水動力性能符號，將已有的水力與風力轉輪的流體動力性能理論計算方法和計算公式進行分類和整理。Cracks in francis turbine runner blades threaten the safety, stability and economic profits of the hydropower station
摘要混流式水輪機轉輪葉片裂紋故障嚴重影響了水電站的安全穩定運行和經濟效益的發揮。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。The consequence of computation indicated above method not only can approach turbine blade surface accurately but also can be provided for extend and intersection while the precision can be controlled. it realized anticipated goals of the application of turbine blade and engineering exercises. thus, it provide the foundation to the reconstruct and optimize design of turbine blade as well as the cam of turbine blade
算例結果表明，上述方法不僅可精確擬合混流式、軸流式水輪機轉輪葉片，而且還能對葉片進行求交、延展運算並控制精度，實現了nurbs曲面造型技術應用於水輪機葉片設計和工程實際的預期目標，為水輪機葉片的改型設計和優化設計、水輪機葉片的計算機輔助製造打下了基礎。Urbular turbine generator set is suitable for heads from 2m to 15m and large discnarge. its feature is that water flow is axial throughout the passage from the inlet to the outlet, so that the passage is straight conduit essentially. the tubular turbine generator set is characterized by good characteristic of water flow and high efficiency. etc
混流式水輪發電機組廣泛適用於高中低各種水頭，一般從10米至300米，其特點是水流流經轉輪葉片時先沿著幅向進入，然後逐漸變成軸向離開，因而混流式水輪發電機組具有運行可靠，結構簡單，平均效率較高等特點。Stainless steel blade castings for welded construction runner for francis hydraulic turbines
混流式水輪機焊接轉輪不銹鋼葉片鑄件In this paper, at first the cfd simulation including the spiral case, stay vane, guide vane, runner vane and draft tube at different operation points is studied, then the result of the pressure distribution on runner blade is provided for the runner structural simulation by fluid - structure interaction ( fsi ) method
本文首先對混流式水輪機全流道內流場進行了多工況的cfd計算，得到不同工況下轉輪葉片表面水壓力載荷，並利用順序流固耦合方法對轉輪在各種工況下的應力特性進行計算。分享友人