輪葉試驗 的英文怎麼說

中文拼音 [lúnyèshìyàn]
輪葉試驗 英文
vane test
  • 輪 : Ⅰ名1 （輪子） wheel 2 （像輪子的東西） wheel like object; ring; disc 3 （輪船） steamer; steamboa...
  • 試 : 名詞（古代占卜用的器具） astrolabe
  • 驗 : 動詞1. （察看; 查考） examine; check; test 2. （產生預期的效果） prove effective; produce the expected result
  • 試驗 : trial; experiment; test
  1. Because of the technical complexity of the turbine for the three gorges project and on the basis of several important technical problems which have been defined in the international bidding documents for 14 generating units in the left bank power station, the owner of the project has decided another some important technical problems based on appraisal and comparison in the bid appraisal stage after the bidding documents are analyzed and the tender documents are cleared by the tenderers

    由於三峽工程水輪機技術上的復雜性和挑戰性，在左岸電站14臺機組國際招標文件已明確了若干重大技術問題的基礎上，在機組議評標階段，對招標文件進行分析和投標商對投標文件進行澄清說明后，經評議比選，業主又決策了幾個重大技術問題，主要有：水輪機設計水頭的確定，負傾角葉片水輪機的應用，兩套水力設計，舍棄初期轉輪，蝸殼進行水壓試驗等。
  2. Overspeed test for industrial fan impeller

    工業通風機葉輪超速試驗
  3. Test methods for impeller aerator

    葉輪增氧機.試驗方法
  4. Soils investigation and testing. vane test

    土壤.調查和試驗.輪葉試驗
  5. Cavitation is liable to appear in the first elbow. the angle of flare is always less than 5o

    由於轉子腔是與葉輪一起高速旋轉，其內部流動無法用試驗的方法測出。
  6. A motor that is be directly coupled to a fan - blade or blower - wheel load is to be operated at the applicable test voltage and under no - fan, no - load conditions with the shaft running free

    直接耦合到一個風扇葉片或鼓風機葉輪負荷的馬達，將在適用的試驗電壓下做無風扇，無負荷，軸空轉狀態的運行。
  7. 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。
  8. Then as a typical example some results drawn by using the introduced methods of the vertical - axis cycloid turbine are given and compared with the experimental data. the purpose is focus on the validation of the introduced methods what are the foundations of the hydrodynamic performance calculation and the optimal method

    然後以豎軸可調角直葉擺線式水輪機為例，計算了這種水輪機的各種水動力性能，給出了數值計算結果，對各種方法進行了分析並與已有的試驗結果進行了比較和研究，從而檢驗了各種理論計算方法的優缺點和可靠性。
  9. This new technology changes from the traditional method by which the induced and compressor wheel separately are designed and produced to a new one by which the one - piece compressor is designed. on the basis of this new technology and the optimum blade profile, the performance of both the compressor and the turbocharger is largely improved. through the heating power calculation of the compressor, the analysis of the surge and the block of the compressor, the test - bed performance test of the turbocharger, the matching test of turbocharger and diesel engine, the propulsion test of the turbocharger on plateau condition, it is proved that the newly - designed compressor not only has high efficiency, but also improves the flow distribution in the high efficiency area so that the propulsion line can run through the high efficiency area

    主要內容包括：提出一種全新的壓氣機葉輪技術和概念，這種技術將傳統的導風輪和壓氣機分開設計、單獨加工改為整體設計、整體加工的單體葉輪；從增壓器與柴油機配機計算所得出的基本參數出發，通過對壓氣機進行熱力計算，確定壓氣機的基本結構參數；再對葉型以及葉輪輪廓與葉輪罩殼的配合間隙進行優化，對新設計的壓氣機進行喘振和堵塞分析；通過增壓器平臺性能試驗，驗證了新設計的壓氣機的性能水平得到了較大的提高，達到了提高增壓器的整體性能水平的目的；通過增壓器與柴油機配機試驗、以及增壓器用於高原條件下的牽引試驗，驗證了新設計的壓氣機不但具有高效率，還改善了高效率區的流量分佈，使牽引特性線貫穿高效率區。
  10. The reconstruction project of turbomachinery gets significant social benefits and economical benefits according to the in - situ tests results

    根據轉輪葉片切邊后現場驗證試驗結果分析，水輪機的增容改造取得了明顯的經濟效益和社會效益。
  11. Then, in the main system, neural network was adopted to construct the response relation between impeller performance and meridional channel design variables, where the training sample data were schemed according to the design of experimental method, and the effect of blade shape on the impeller performance was taken into account and the meridional channel was optimized

    然後，在中心系統內利用試驗設計理論安排訓練樣本，採用神經網路建立葉輪性能與子午流道設計參數之間的響應關系，同時計及葉片形狀對葉輪性能的影響，對子午流道及葉片進行優化。
  12. Until now, there have been a few reports on the damage of the water pumps caused by sand and water cavitation. by use of the test loop for solid and liquid two phases, under the condition of 3 % head drop, the damage location and relative degree of the sand and water cavitaiton occurred on the impeller were tested and researched. the result was, them, compared with the results under the condition that water cavitation occurred and no cavitation but only wear occurred. the differencts were analyzed. the analysis result can be used as the basis of the further research and the improvement of the impeller shape

    目前含沙水汽蝕對水泵損傷方面的報導甚少，本文利用固液兩相流試驗臺，對離心泵閉式葉輪在含沙水汽蝕時（ 3揚程下降點）的損傷部位和相對程度進行了試驗研究，並將此結果與清水介質發生汽蝕時的損傷情況[ 13 ]及含沙水無汽蝕情況下的磨損情況[ 7 ]相比較，對其差異進行了分析，為今後進一步探討葉輪損傷機理和葉型改進提供了實驗依據。
  13. Test method for indicating wear characteristics of petroleum hydraulic fluids in a high pressure constant volume vane pump

    高壓定容葉輪泵中石油液壓液耐磨特性指示的試驗方法
  14. A new aerodynamic design system developed by authors for draft fan with enhanced efficiency, suppressed noise, enlarged flux and high load. the new design system features : a twist regulation for vortex control is employed in designing to lessen the secondary flow loss in the blade tip and hub ; the feasibility and high efficiency of this procedure has been verified by the tests of the prototype fan ; a new computer - aided 3d blading is used to optimize the blade ; numerical inverse checking is adopted to enhance accuracy in designing and cut down the period of the designing and production. this design system can make the optimized blade with " forward inclination ", " inclining sweep ", " bending sweep ", to minimize the various secondary flow losses, to expand the steady working range of the fan, and to suppress the aerodynamic noise source

    本文通過對一種新型高性能礦用局部通風機的設計、製造及試驗全過程的綜述，展現了新的先進設計體系在民用通風機上的成功運用，其研製特點是： （ 1 ）在葉片氣動設計中為了降低葉根及葉尖區二次流損失，採用可控渦扭向規律設計，樣機實測的高性能驗證了這種方法的可行性和高效性； （ 2 ）在設計方法中採用較精確的數值反驗算，獲取最優設計方案，大大提高設計的準確性和成功率，並縮短了設計試制周期； （ 3 ）在設計過程中發展了計算機輔助三維葉片造型新方法，可以根據設計需要簡便快捷地對葉片進行「前傾」 、 「傾掠」或「彎掠」造型，這些造型對減小各種二次流損失、擴大穩定工況范圍和控制葉輪機氣動噪聲源起到了非常好的作用。
  15. Abstract : a new aerodynamic design system developed by authors for draft fan with enhanced efficiency, suppressed noise, enlarged flux and high load. the new design system features : a twist regulation for vortex control is employed in designing to lessen the secondary flow loss in the blade tip and hub ; the feasibility and high efficiency of this procedure has been verified by the tests of the prototype fan ; a new computer - aided 3d blading is used to optimize the blade ; numerical inverse checking is adopted to enhance accuracy in designing and cut down the period of the designing and production. this design system can make the optimized blade with " forward inclination ", " inclining sweep ", " bending sweep ", to minimize the various secondary flow losses, to expand the steady working range of the fan, and to suppress the aerodynamic noise source

    文摘:本文通過對一種新型高性能礦用局部通風機的設計、製造及試驗全過程的綜述，展現了新的先進設計體系在民用通風機上的成功運用，其研製特點是： （ 1 ）在葉片氣動設計中為了降低葉根及葉尖區二次流損失，採用可控渦扭向規律設計，樣機實測的高性能驗證了這種方法的可行性和高效性； （ 2 ）在設計方法中採用較精確的數值反驗算，獲取最優設計方案，大大提高設計的準確性和成功率，並縮短了設計試制周期； （ 3 ）在設計過程中發展了計算機輔助三維葉片造型新方法，可以根據設計需要簡便快捷地對葉片進行「前傾」 、 「傾掠」或「彎掠」造型，這些造型對減小各種二次流損失、擴大穩定工況范圍和控制葉輪機氣動噪聲源起到了非常好的作用。
  16. The damping supporting of principal axis system in the overspeed tester for turbine expander impeller

    透平膨脹機葉輪超速試驗臺主軸系統的減振支承
  17. The reason that the noise is lower with inclining tongue is : 1 ) both the radius of the tongue and the gap between the tongue and the blade are changed across the wideth ; 2 ) the phase angle between blade and the tongue is changed across the wideth, therefore the peak value of the noise do not appear at the same time, so the peak value of the noise with inclining tongue is much lower than the straight one. the influence of the expanded angle of the shell of the fan on the noise was invested experimentally, and the optimal angle was got

    傾斜蝸舌降噪的主要原因是：一是改變了從氣流入口側到風機輪盤的蝸舌間隙和蝸舌半徑；二是改變了葉輪與蝸舌非定常相互作用的相位差，使其產生噪聲也有相位差，迭加的結果進一步降低了噪聲。另外，試驗研究了不同蝸殼擴張角對風機噪聲及效率的影響規律，蝸殼擴張角選擇當否，對效率和噪聲影響較大。
  18. Testing equipment and testing method for centrifugal pump was introduced, and experimental steady - state hydraulic performance during changing outletangle was obtained through changing outlet angle and the result was discussed at the end

    摘要介紹了離心泵性能試驗的試驗裝置和試驗方法，通過對一臺離心泵的試驗，給出了水泵在改變其葉輪出口角時各參數的穩態性能曲線，並對其進行了分析。
  19. Firstly, developing status of routine test of hydroelectric generation set and trouble diagnosing in china and abroad are introduced ; secondly, the article specifies the structure of cims and basic theory and technology. cims is composed of monitoring apparatus and analyzing system, signal processing uses fft and df ; in the end, function of cims is specified. monitoring apparatus is designed of 80c196kb and 89c52, the monitoring soft adopts microsoft visual basic 6. 0 and the database is developed of microsoft access 2000

    文章首先介紹了水電機組常規試驗及故障診斷國內外發展現狀；然後給出了系統的結構框架和理論技術說明，本系統由監測裝置和軟體分析系統組成，信號處理採用了快速傅利葉變換和數字濾波技術；最後詳細分析了系統功能，監測裝置使用80c196kb和89c52單片機技術開發，監測軟體使用visualbasic6 . 0語言編制，數據庫採用microsoftaccess2000 ，監測系統分為三大部分：運行狀態監測模塊、故障分析及數據處理模塊、水輪發電機組常規試驗模塊。
  20. The centrifugal oil pump of type 65y60, finalized by the former ministry of machinery - building of china is used as a model, which is widely utilized in oilfields and refineries. the affinity law of impeller trim for the pumps at various viscosity and the influence of number of blades on the law have been thoroughly investigated by experiments

    本文以油田和煉油廠常用的，機械工業定型產品65y60型離心油泵為研究對象，採用試驗的方法，全面研究了不同粘度下離心油泵的葉輪切割定律和葉片數對葉輪切割定律的影響規律。
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