阻力系數 的英文怎麼說

中文拼音 [zǔlìxìshǔ]
阻力系數 英文
cd coefficient of drag
  • 阻 : 動詞（阻擋; 阻礙） block; hinder; impede; obstruct
  • 力 : Ⅰ名1 （力量; 能力） power; strength; ability; capacity 2 [物理學] （改變物體運動狀態的作用） forc...
  • 系 : 系動詞（打結; 扣） tie; fasten; do up; button up
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 阻力 : 1 （阻礙事物發展的外力） obstruction; resistance 2 [物理學] resistance; drag; drag force; nowel; ...
  • 系數 : [數學] coefficient; ratio; modulus; quotient; factor
  1. Additionally, it has utilized the harvest of the diffluent and confluence cross experiment made by beijing university of technology, which has enhance the application of the software and be of innovation

    同時，軟體利用了北京工業大學建築環境與設備實驗室多年來在帶調節拉桿閥片的合流及分流四通局部阻力系數的實驗研究成果。這一點，將擴大了軟體的工程應用范圍。
  2. The research on calculating formula of coefficient of frictional resistance of bolting and shotcreting roadways

    錨噴巷道通風阻力系數的計算式研究
  3. The results of soil trough experiment indicated that, the flow velocity and froude number would add when the rainfall splash intensity rose ; the flow depth and resistance coefficient would decrease when the rainfall splash intensity increased

    土槽試驗結果表明：土壤坡面薄層水流流速和弗汝德數隨雨滴打擊強度的增加而增加，水深、阻力系數隨雨滴打擊強度的增加而降低。
  4. The aerodynamic characteristics of a projectile with wrap around fins are studied systematically in this paper, as follows : 1. the lift coefficients 、 drag force coefficients 、 pitch moment coefficients 、 pitch damping moment derivatives and roll damping moment derivatives are obtained from engineering calculation through looking wrap around fins as flat fins of the same projection aera

    本文對某卷弧尾翼彈氣動特性進行了系統研究，主要內容與結論為: 1 .將卷弧翼按照相同投影面積的平板翼進行工程估算，得到升力系數、阻力系數、俯仰力矩系數、俯仰阻尼導數、滾轉阻尼導數曲線。
  5. First, the noblesse new slender ship theory is introduced and modified to make it suitable for numerical calculation, with which we can calculate the wave - making resistance coefficient of a ship

    首先引入noblesse新細長船理論，通過在理論方法上的改進，使之適合於半滑行船興波阻力系數。
  6. Lastly, by combining the noblesse new slender ship theory and the savitsky method, we get the wave - making resistance prediction method for semiplaning ship. examples of calculation are also presented

    最後將改進的noblesse新細長船理論與sit法結合，得到了計算半滑行船興波阻力系數的方法，並給出了計算實例。
  7. Results show when velocity of flow remains unchanged in the onflow area and openness of the tube is changed, then resistance coefficient changes obviously

    實驗結果表明：在湍流區域內流速（量）不變時，改變管件開度，阻力系數變化較顯著；改變流量，管件開度不變時，變化不大。
  8. Calculating ship residuary resistance coefficient based on the lap - keller chart

    船舶剩餘阻力系數計算平臺的實現
  9. Coefficient of tractive resistance

    牽引阻力系數
  10. Air drag coefficients of large calibre duplex ammunition

    大口徑機槍雙頭彈空氣阻力系數的實驗研究
  11. The analysis of aerodynamic drag data shows that air drag coefficient reaches 0. 539

    空氣阻力試驗數據分析表明，模型的空氣阻力系數為0 . 539 。
  12. The analysis of changing transitional corner between the front and top of the model illustrate that air drag coefficient can be reduced 23. 30 %

    前圍與車頂的過渡由較小圓角變為較大圓角的試驗分析表明，空氣阻力系數可以降低23 . 30 。
  13. The analysis of the repeated test data shows the maximum deviation of air drag coefficient is less than 0. 88 % and the deviation of the most surface pressure data is within 1 %, it illustrates the test data is reliable

    重復試驗的數據分析表明，空氣阻力系數數據的最大偏差小於0 . 88 ，絕大部分測壓試驗數據的偏差均在1以內，這說明客車模型風洞試驗數據的精度較高。
  14. Several icing parameters were imported to calculate the change of drag coefficient and typical derivatives between clean aircraft and iced aircraft, and the aircraft flight envelope change of iced and un - iced situation was computed, and the small disturbance flight dynamics model was modified to study the effect of the ice accretion on the aircraft dynamics by importing the ice parameter to it, and the longitudinal and lateral stability and the elevator, aileron and rudder step response were also studied and simulated

    根據這些參數計算了飛機結冰后阻力系數以及典型氣動導數的變化，並計算了結冰前後飛機的飛行包線；同時對結冰前後飛機的縱向、橫側動穩定性以及升降舵、副翼和方向舵階躍操縱響應進行模擬計算。
  15. To meet the demands for large space and flexible compartmentation of buildings, laminated vierendeel trusses are adopted in high - position transfer story structures. first the bearing characteristics are analyzed, in which reasonable stiffness ratio of the upper chord, middle chord, and lower chord is derived. then combined with an actual engineering model ( 1 8 similar ratio ), the static loading and pseudo - dynamic tests of two models for laminated vierendeel truss used in transfer story structures are conducted, in which one model adopts reinforced concrete, and the other adopts prestressed concrete and shape steel concrete. seismic behaviors are analyzed, including inter - story displacement, base shear - displacement skeleton curves, and equivalent viscosity - damping curves. a program is programmed to carry out the elasto - plastic dynamic analysis, and displacement time - history curves of the two models are derived. the test and analysis results show that the laminated vierendeel truss with prestressed concrete and shape steel concrete has excellent seismic behaviors. it can solve the disadvantages of laminated vierendeel trusses used in transfer story structures. finally, some design suggestions are put forward, which can be referenced by similar engineering

    為滿足建築物大空間和靈活隔斷要求，在高位轉換層結構中採用迭層空腹桁架結構.首先分析了其受力性能，得出了空腹桁架各構件合理的截面剛度以及布局形式.然後結合一實際工程，進行了兩榀迭層空腹桁架轉換結構模型（ 1 : 8相似比）的豎向荷載下靜力試驗以及擬動力試驗.其中一榀為普通混凝土迭層空腹桁架，另一榀配置了預應力和鋼骨混凝土，對比分析了兩模型的層間位移比、骨架曲線以及等效粘質阻力系數等抗震性能的比較，並進行了彈塑性動力分析.試驗和分析結果表明，配置預應力和型鋼混凝土的迭層空腹桁架轉換結構具有良好的抗震性能，可以成功地解決迭層空腹桁架作為轉換層結構所產生的弊端問題，最後對這類轉換層結構提出了相應的設計建議
  16. Numerical simulation method on drag characteristic of air amp; amp; flue gas ducts ' irregular parts in power plants

    電廠煙風道異型件阻力系數的數值計算方法
  17. ( 3 ) hydraulic resistance coefficient formulas are derived according to a great number of flume experiments and relative theory analysis

    （ 3 ）通過系列水槽試驗和相關理論分析，提出了十字片梅花加糙的有效水深和水力阻力系數計算公式。
  18. The results of flume experiment indicated that, the flow velocity and froude number of the overland flow would fall with the rainfall splash intensity rose ; the flow depth and resistance coefficient would enhance with the rainfall splash intensity increased

    水槽試驗結果表明：水槽槽面薄層水流流速及弗汝德數隨雨滴打擊強度的增加而降低，水深、阻力系數隨雨滴打擊強度的增加而增加。
  19. Based on the pull - out tests data between geogrids and expansive soil / sands arranged by the orthogonal table l9 ( 34 ), the following conclusions are reached : 1 ) the displacement - properties of pullout tests depend on the pullout speed. the law of factors " affecting degree, which influences the parameters between geogrids and soils in the pulling - out procedure, is obtained. with the concept of " equivalent pull - out displacement ( x ) " brought forward, the whole process of pull out tests is divided into two process - " main process ( when x 1. 0 ) " and " residual process ( when x 1. 0 ) ", and three stages - static friction resistance stage, slip friction resistance stage, and residual friction resistance stage

    基於正交設計表l9 （ 3 ~ 4 ）分別安排了影響因素與土工格柵膨脹土或砂土界面相互作用參數的拉拔試驗數據，獲悉： 1 ）拉拔試驗位移特性主要取決于影響因素中拉拔速率；通過分析並獲取影響因素對筋土界面相互作用參數的影響程度及其在拉拔試驗過程中的變化規律，提出了當量拉拔位移（ x ）的概念，並據此將拉拔試驗全過程劃分成「主過程（ x 1 . 0 ） 」和「殘余過程（ x 1 . 0 ） 」 ；且將影響因素對拉拔力或摩擦阻力系數的影響程度分成三階段（靜摩擦阻力階段、滑動摩擦阻力階段，殘余摩擦阻力階段） ； 2 ）不同（規范）定義的筋土界面摩擦阻力系數數值相差較大，但影響因素對摩擦阻力系數影響程度及其變化規律不會因不同（規范）定義而受到影響。
  20. Study on friction resistance coefficient of straight tube

    直管摩擦阻力系數的研究
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