有限葉數 的英文怎麼說

中文拼音 [yǒuxiànyèshǔ]
有限葉數 英文
finite number of blades
  • 有 : 有副詞[書面語] （表示整數之外再加零數）: 30 有 5 thirty-five; 10 有 5年 fifteen years
  • 限 : Ⅰ名詞（指定的范圍; 限度） limit; bounds Ⅱ動詞（指定范圍, 不許超過） set a limit; limit; restrict
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 有限 : limited; restricted; finite; a little; not much
  1. Industry of drug of crane of lukewarm city sea of forefathers of limited company profit from work hard, abide by foliaceous colleague hall " long although nobody see, close, know one day oneself on purpose " old saying, accumulative total counts name of 10 kinds of traditions square, already formed 4 the form of a drug today more than 30 breed, become the area austral short for zhejiang province exclusive in factory of officinal preparation major

    溫州海鶴藥業有限公司得益於前人之苦心經營，遵循葉同仁堂「修合雖無人見，存心自有天知」之古訓，累計數十種傳統名方，今已形成四個劑型三十多個品種，成為浙南地區唯一的中成藥制劑專業廠。
  2. It adopts reynolds time - average n - s equation and k - ? turbulence model to calculate the inner 3 - d viscid turbulence flow of centrifugal pump. in the unstructured grid, the governing equations are discretized with finite volume method based on finite element method. then the pressure correction method is used to carry out numerical calculation

    而後採用基於雷諾時均n - s方程與標準-湍流模型來求解離心泵葉輪內三維粘性紊流，在非結構化網格中，採用基於有限元的有限體積法對方程進行離散，用壓力校正法進行數值求解。
  3. In this paper the fourier finite - difference technique is used for migration of phased - array ground - penetrating radar real pgpr data in 2d media

    本文利用傅里葉有限差分法對相控陣探地雷達樣機採集的實測數據進行偏移歸位。
  4. 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。
  5. An old theorem from the first half of the nineteenth century by lowry, wallace, bolyai and gerwien asserts that any simple polygon can be dissected into a finite number of pieces and put back together to form any other simple polygon of the same area

    十九世紀上半葉lowry ， wallace ， bolyai與gerwien同時證明了一個古老的數學命題：任意給定平面上一個簡單多邊形，必可將其分劃成有限塊，重新安排，拼成另一個任意給定的等面積的簡單多邊形。
  6. 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。
  7. On the basis of the impacting test of particle separator vortex blade, utilize ansys / ls - dyna finite element software to carry on the value computation to the impacting process and the analysis to the computed result ; and carry on the comparison to the computed result and the test result, two kind of results tally well

    在粒子分離器渦流葉片外物撞擊試驗的基礎上，運用ansys / ls - dyna有限元軟體對撞擊過程進行了數值計算，對計算結果進行了分析;並對計算結果和試驗結果進行了比較，兩種結果吻合較好。本文開展的對粒子分離器渦流葉片的外物撞擊試驗和數值計算，在國內屬首次進行。
  8. The multi - stage forging process of a gas turbine compressor blade is simulated using 3d coupled thermal - mechanical rigid - viscoplastic finite element method

    摘要利用熱力耦合剛塑性有限元法，對某重型燃機葉片的多工步鍛造過程進行了數值模擬研究。
  9. As a result, the metal flow pattern during forging process is analyzed and distributions of some thermomechanical field variables such as temperature 、 stress and strain are obtained, through which the forming laws during forging process of a gas turbine compressor blade are revealed

    通過有限元數值模擬，分析了鍛造過程中的金屬流線分佈，得到了溫度場、應力應變場等熱力參數的場量分佈，從而揭示了葉片鍛造的變形機理。
  10. Finally, the analysis examples were presented combined with some real data from hydroelectric set, they showed that numerical simulation of fluid - solid coupling for vibration in this paper is more available and the natural frequency of guide vane in water is lower than that of in air

    運用ansys有限元軟體計算了水輪機導葉在空氣中的振動特性以及液固耦合振動的頻率和振型，並對二者進行比較，分析了影響振動的因素。通過算例表明，所採用的有限元數值模型合理，計算結果正確。
  11. In order to further optimize structure of the valve, the design need engineering analysis, and need feedback information of performance parameter in experiment to modify design. because of limited time, this paper establishes stress distribution and deform only by fea, and optimizes the structure of valve. it can ensure the valve meet the requirement of fact usage and assembly, and found good base for further research and experiment on body or out - of body and manufacture on large scale

    為了進一步對瓣環和瓣葉作結構優化，設計還需要進行工程分析，還需要將實驗獲取的性能參數信息反饋回來，修改設計，由於時間關系本論文僅用有限元分析確定人工心瓣在工作及裝配時的應力分佈和變形情況，對瓣環和瓣葉的結構進行優化，以確保設計出來的人工心瓣滿足實際使用和裝配要求，為人工心瓣的進一步研究、進行離體和在體實驗及批量生產奠定良好的基礎。
  12. In chapter three, the momentum integral equations and their solutions of two - phase fluids in boundary layer are given and the no - disturbance solutions on the surface of vane are required. leading into the disturbance factor of no - dimension and thickness coefficient ks in boundary layer, the numerical method of finite approximation is used to calculate the boundary layer

    第三章給出了固液兩相流泵的邊界層動量積分方程及其解的一般表達式，並得到葉片表面的無擾動解；引入了無量綱擾動因子及邊界層厚度系數k _ ，給出了用於邊界層計算的有限次逼近的計算方法。
  13. 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。
  14. Surface reconstruction is one of key techniques in reverse engineering. based on unorganized discrete points come from finite element analysis triangular mesh on exterior surface of the aeroengine hollow turbine blade, this dissertation studied some related problems, such as scattered data preprocessing, quadrangle partition and surface reconstruction technology

    曲面重構是逆向工程研究的重要內容之一，本文基於航空發動機空心渦輪葉片外表面的有限元三角網格離散點，對離散數據點的預處理、四邊域劃分及曲面重構技術進行了研究。
  15. In this paper the turbine blade is described by the method of csg and b _ rep mixed. each part of turbine blade has been divided into the meshes with the parameter mapping method. then the process of integrating the sub - block into a whole object is completed with the method of integer coordinate

    本文採用csg與b _ rep混合描述法描述汽輪機葉片的結構，利用參數映射法對汽輪機葉片的每個子塊進行網格剖分，然後利用整數坐標實現子塊網格集合成整體有限元網格模型。
  16. Based on former work, a finite difference viscous code that uses a high convergence, high accuracy, high resolution lu - sgs - ge implicit scheme and an improved fourth ( fifth ) - order high resolution muscl tvd scheme to integrate the full 3d navier - stokes equations and the low - reynolds number two - equation turbulence model is extended to simulate the flow field inside centrifugal impeller mechanism

    並且在現有工作基礎之上，將基於有限差分方法的高收斂率、高精度、高解析度的lu - sgs - ge隱式格式和四（五）階muscltvd格式求解全三維navier - stokes方程和低雷諾數雙方程湍流模型的計算程序推廣到離心葉輪機械內部流場的數值求解。
  17. With this program, the blade suit for flow parameters that was obtained from the meridional - flow program is designed. finally, the flow field of the cascade of the counter - turbine is simulated using the cfd program. the cfd program is based on the jameson cell - centered finite volume method

    最後對所設計出的對轉渦輪平面葉柵內部流場進行了初步數值計算，採用的計算格式為jamescn的具有二階精度的runge ? kutta四步顯式有限體積法，結合時間推進求解euler方程。
  18. I carried my research on both the two computation methods and fruitful results were obtained. for the fdtd method, i solved the instability problem of the method in the non - orthogonal coordinate system. for the pwe method, i introduce the linear transform in to calculate analytically the fourier coefficients of complicated photonic crystals

    對于有限時域差分方法，我解決了一個影響這種方法在斜坐標使用的穩定性問題，得到了傳統的yee型差分在斜坐標里的擴充；對于平面波展開方法，我引入了線性變化求富里葉展開的系數，這種方法的好處可以很方便快捷的獲得復雜光子晶體的富里葉系數。
  19. As the chlorophyll a concentration data that can be used in the correlation analysis are limited quantitatively, these conclusions are preliminary and subjected to be tested

    由於可供比對分析的葉綠素a濃度數據數量有限，本節的研究還只是對相應內容的初步探討，結論的普適性有待進一步檢驗。
  20. Using three - dimensional finite element techniques, wave propagation theory, modals synthesis theory and numerical analysis methods, the vibration characteristics of steam turbine system are studied. according the structural features of practical blade discs, the 3 - d 8 - node element model is used because of its fitness to complex structures

    本文採用三維有限元技術、波傳播理論、接觸分析、預應力模態分析等數值分析方法，對汽輪機葉片?輪盤系統的振動特性進行了深入而較全面的分析研究。
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