槳葉數 的英文怎麼說

中文拼音 [jiǎngyèshǔ]
槳葉數 英文
number of blade
  • 槳 : 名詞1. （劃船用具） oar; paddle 2. （螺旋槳） propeller
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 槳葉 : awe; paddle
  1. Blade profile drag coefficient

    槳葉剖面阻力系數
  2. For getting the runner characteristics more correctly, researching the representation of runner characteristics of the kaplan turbine in this paper, and using this method of modifying runner characteristics to calculate the transient of hydraulic power station. improving the calculating model of the axial thrust in the kaplan turbine ' s transient. base on the theory of screw propeller without any boundary, using the theory of screw propeller with pipe, and the formula to calculate the dynamic axial thrust during transient is developed

    本文對轉槳機組在過渡過程中的槳葉劃水產生水推力的數學模型進行了改進，在原來使用無邊界螺旋槳進行等效的基礎上，使用了導管螺旋槳對轉槳機組中的槳葉劃水進行等效，並且比較詳細的分析了影響轉槳機組軸向水推力的各個因素，以及給出了動態計算軸向水推力的公式，通過計算表明，使用改進后的動態水推力計算模型得到的結果能較好的反應實測的動態軸向水推力。
  3. Propeller is a critical part of crystallizer, the geometry shape and dimension of which determine the flow field in the crystallizer

    攪拌槳是攪拌釜式結晶器的重要部件，攪拌釜內飽和溶液的整體流動形式與攪拌槳的葉剖面形函數和槳的結構參數密切相關。
  4. Numerical optimization of circulation distribution on marine propellers

    船舶螺旋槳葉片環量的數值優化
  5. 2. an unsteady, nonlinear state - space airfoil aerodynamics model was developed with onera dynamic stall model

    對於後行槳葉的動態失速行為，引入了對翼型實驗數據不敏感，並也具有狀態空間形式的onera動態失速模型。
  6. In order to predict hydrodynamic characteristics a computational system is developed including determination of the pressure distribution on a wing section by use of the conformal mapping method and panel method respectively and of the flow in boundary layer according to the thin shear layer approximation ( tsl ) for navier - stokes equation approach. the wing sections of naca4412 and naca0012 are applied to test the computational system. the numerical inspection shows that the panel method with better precision and the momentum and the displacement thickness of boundary layer can be used to complete this calculation

    本文分別用守屋的保角變換法和基於源匯渦分佈的面元法，建立了計算槳葉表面壓力分佈的數學模型；應用納維-斯托克方程的薄層近似理論模式和有限差分數值方法，建立了計算機翼表面邊界層內部流動的數學模型；應用槳葉表面邊界層內部粘性流動和外部勢流流動在邊界上的匹配演算法，建立了槳葉表面二相流流動的計算方法和相應的計算機程序。
  7. Main rotor blades were severed within the first few metres through contact with small trees and rocks, and the underbelly and right side of the fuselage were damaged substantially

    主旋翼槳葉在直升機沖前首數公尺處因碰觸地面矮小樹叢和石塊而斷裂，機腹和右側嚴重損毀。
  8. Now, it is important to develop the composite blade researching, two measures including analysis methodology and finite methodology are provided. in this text, the finite rotation composite beam theory developed by hodges and his co - workers, during the late 1980 ' s, is adopted in order to research rotor of helicopter. a liner and two - dimension finite analytic measure is used to calculate the section characteristic and strain of the blade ; a semianalysis methodology is used to calculate the sensitive degree of section characteristic

    以giavotto的線性二維有限元分析模型為基礎考慮了復合材料槳葉的結構和變形特點，計入了剖面翹曲的影響，在此基礎上編制了具有八節點等參元復合材料槳葉剖面剛度計算的有限元程序，分析計算了復合材料梁的剖面剛度、彎曲中心、剪切中心；並利用半解析法進行剖面剛度、剪切中心、彎曲中心的參數靈敏度分析。
  9. In the first part, firstly, the main dimensions of oar blade and propeller boss and other parameter of varivec propeller are selected. then, a suit of viable mechanism to control the work state of varivec propeller is designed, which is different from the mechanism designed by the japanese. it ' s principle is similar with the cycloid propeller

    在機構設計部分，本文首先確定了全方位推進器的槳葉及槳轂的主尺度以及其他的相關的參數，然後設計出一套可行的與擺線推進器工作原理相仿的調距機構用來對全方位推進器的工作狀態進行控制，該機構與日本的全方向推進器的連桿圓盤機構完全不同。
  10. In lifting - surface theory, the non - liner phenomena of the trailing vortex in the transition wake area and of the tip vortex separation are considered. in surface panel method hyperboloidal quadrilateral panels are employed and the morino ' s analytical formulation is used to determine the influence coefficients. the more reasonable pressure kutta condition is satisfied at the trailing edge of propeller blade

    在計算中，對于升力面理論，本論文考慮了過渡區尾渦收縮和葉梢分離的非線型現象的影響；對于面元法，本論文採用的是計算較為簡便的基於擾動速度勢的基本公式及雙曲面形狀的面元，在槳葉隨邊滿足更趨合理的壓力kutta條件，並用morino導出的解析公式計算面元的影響系數的快速有效的數值預報方法。
  11. Examination of the wreckage trail indicated that substantial damage was inflicted on the aircraft, in particular the main rotor blades, within the first few metres after initial impact

    墜機路線調查顯示，直升機尤其是主旋翼槳葉，在首次撞擊后的最初數公尺受損嚴重。
  12. The aerodynamic interference between the shroud and the propeller is calculated by lifting line theory. its precise, proved by wind tunnel test here, satisfies the engineering demand

    在計算螺旋槳的參數時，仍以有限葉數升力線模型進行處理，並用誘導因子法來計算槳葉尾渦系在升力線上產生的誘導速度。
  13. As the basic concept, the first step is to modeling by ug. there is different model between propeller and commonly hardware, so we must be use curve modeling, at the same time, characteristic modeling and entity modeling in the whole process. first, we apply offset data for spline fit curve, then scanner smooth curve face

    首先在三維繪圖軟體ug中對螺旋槳及葉片進行三維建模，由於螺旋槳的造型不同於一般零件的cad造型，故在造型過程中同時採用了曲面造型，特徵造型和實體造型幾種方法，先由型值數據生成樣條曲線，再由樣條曲線掃掠生成平滑的曲面，最後通過圓整?延伸得到螺旋槳的三維模型。
  14. The drive impetus deduces from computation and analyses, which can provide design parameter for hydraulic pressure system

    同時經過計算分析得出槳葉的驅動力，從而為下一步的設計及液壓系統提供參數。
  15. Abstract : the system of transforming data and generating process data of propeller was introduced

    文摘:介紹了槳葉測量數據傳輸和工藝數據輔助生成系統。
  16. The theoretical deduction in chapter 3 shows that the shape of load distribution used in the arithmetic is a decisive fact of the error margin size, the more the adoptive shape looks like the actual case, the smaller the error margin will be, therefore the tilt parabola shape can instead of the actual shape of load distribution in the permissible error margin when we predicting constant loading noise caused by the tail rotor of helicopter

    在第三章中通過理論推導和計算比較發現，在預測直升機尾槳定常載荷噪聲時，其誤差大小取決于演算法中槳葉弦向載荷分佈的數學描述與實際弦向載荷分佈的吻合程度，而選取一種與實際弦向載荷分佈較為相似的斜拋物線形來預測噪聲所導致的誤差是很小的。
  17. The software of ansys is used to optimize the structure of propeller based on parameterization and the function of optimal thickness of blade is got

    並使用有限元分析軟體ansys應用變量化方法對槳葉進行結構優化，得到葉厚分佈形函數的優化規律。
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