流線阻力 的英文怎麼說

中文拼音 [liúxiàn]
流線阻力 英文
streamline drag
  • : Ⅰ動1 (液體移動; 流動) flow 2 (移動不定) drift; move; wander 3 (流傳; 傳播) spread 4 (向壞...
  • : 名詞1 (用絲、棉、金屬等製成的細長的東西) thread; string; wire 2 [數學] (一個點任意移動所構成的...
  • : 動詞(阻擋; 阻礙) block; hinder; impede; obstruct
  • : 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...
  • 流線 : filament line; filum aquae; flow line; streamline; streamlining; line of flow; stream filament流...
  • 阻力 : 1 (阻礙事物發展的外力) obstruction; resistance 2 [物理學] resistance; drag; drag force; nowel; ...
  1. The more streamlined an object is, the less drag it encounters.

    一個物體越呈型,它遇到的就越小。
  2. Several semi - active control algorithms used in the semi - active suspension system with mr dampers are proposed and developed including the " on - off " voltage controller, the continuously linear variable voltage controller, the modulated continuously linear variable voltage controller based on " sky - hook " damping concept and the hybrid controller based on the combination of " sky - hook " damping concept and " ground - hook " damping concept and the fuzzy logic controllers using measurements of the relative displacement between the sprung and unsprung mass or the absolute acceleration of the sprung mass as the input variables of fuzzy logic controllers. the simulation models were prepared in matlab ? simulink ? fuzzy toolbox programs. the experiment setup of the semi - active suspension system with mr dampers in the lab has been designed and developed

    根據磁尼器特性和對懸架系統動學特性的規律性研究,為磁尼器設計了基於「天棚」尼控制概念的「 on - off 」 、性連續和修正的性連續控制策略,基於「地棚」尼控制概念的磁性連續控制策略, 「天棚」尼和「地棚」尼控制概念性組合起來的磁尼混合控制策略,根據模糊控制原理設計了以簧載質量和非簧載質量間相對位移或簧載質量加速度分別作為輸入變量的模糊邏輯控制器用於磁尼半主動懸架的智能控制。
  3. The aircraft is streamlined to cut down wind resistance

    飛機設計成型以減少風的
  4. This paper discusses the ability of avoiding maximal power flow of quadrilateral impedance relay and round impedance relay in detail and puts forward the setting principle and setting method of load limiting resistor of backup distance protection

    本文對四邊形和方向圓特性抗繼電器躲路最大潮的能進行了詳細分析,提出了距離保護負荷限制電的整定原則和整定方法。
  5. Aiming at the study actuality of fan performance monitoring system and analysis of fan performance curve changes affected by inlet - box and the different fixed - angles of guide blades in the course of installation, a fan flow monitoring model based on rbfnn in whole flow zone was established in this thesis. in the model, the method of no throttle and fan performance curve were used as basis. and on the basis of that model, fan performance curves of 4 - 73no. 8d were approached with experimental data of different speed, different opening - angles of guide blade and different resistance of pipeline, the precision and the error law of model were studied

    本文針對電站風機性能監測系統研究較少的現狀,在實驗的基礎上分析了現場加裝進氣箱和由於安裝造成的導器葉片開度不一致對風機性能曲的影響,並在此基礎上採用無節方法測量量,以風機調節性能曲為依據,建立了基於徑向基函數( rbf )神經網路的風機量全程監測模型;以實驗室4 - 73no . 8d離心風機為研究對象,探討了rbf神經網路差壓模型在變轉速、變導器開度和變管網等工況下的應用精度和誤差分佈規律;最後用visualc + +語言開發了風機性能在監測系統。
  6. The factory has possessed advanced production equipments and wire cable check equipment at domestic. first class technology will provide you wire cable with fluorin polymer used in in aviation spaceflight, electric cables, control cables, computer cables, compensatory wire cables, fire - proof cables with high temperature, general plastic cables that classified into sixteen species and over one thousand specifications. cables for " hongyuan " brand are widely used in the fields of spaceflight, national defence, electric petroleum chemistry, steel, public establishments, environmental perfection and architecture. temperature - proof cables with " hongyuan " brand were awarded with famous products in 2001 which are widely sold all through the world and have been won customers trust

    科技量為您提供航天用含氟電電纜電電纜耐熱防腐硅橡膠電纜耐高溫電纜控制電纜計算機網路電纜補償用電電纜船用電纜橡套電纜燃防火電纜等十六大類,一千多種規格產品,並可根據擁護特殊要求,自行設計生產,以滿足顧客要求,多年來「宏源」牌電電纜廣泛用於航空航天國防軍工電子原件電石化鋼鐵冶金公共設施環保建築等領域,深受廣大用戶高度評價和信賴。
  7. New ) move the body into a straight line to reduce drag and increase core power

    剛體減少,增加核心動與游進中的有張有馳也非針尖對麥芒吧?
  8. Aiming at the working condition and object of the 9gscc - 1. 4 sunken - plantharvesting equipment, resistances of ship body and cutting fram were analyzedby means of theory of hydromechanics and traction force of the chain - type convegor were done also by means ofcalculation of tension. power equation of the equipment, which relates to the implement ' s forward speed vm, chain - type convegor ' s linear velocity vs and cutting frame ' s angle of dip, was attained. this paper established a mathematical model for power consumption as objective function, based on thefundamental, structural dimensionof the equipment

    本文根據9gscc - 1 . 4型水草收割機的工作原理及其主要結構尺寸,針對收割機的工作條件和工作對象的特性,應用學理論分析計算船體及切割撿拾架的工作,並用逐點張法計算輸送鏈的牽引,得出整機消耗功率與機組工作速度vm 、輸送鏈速度vs及切割架入水角之間的關系式。
  9. L. ruan, g. gu, x. tian “ numerical simulation for circulating systems and experimental comparison of the closed - loop, self - circulating evaporative cooling of hydro - generators ” 《 electrical engineering 》 vol86, no. 3

    阮琳,顧國彪,田新東「大型蒸發冷卻水輪發電機的關鍵問題定子空心導內兩相摩擦放大倍數的比較及修正建議」 《大電機技術》 , 2004 . 4
  10. Secondly, the paper simplified the calculating model of fume in the high tunnel. took the fume restriction into account, the paper provided some equations to calculate the longitudinal fire ventilation. finally, the paper calculated three examples : the zhongliangshan tunnel and the left route of the yanmenguan tunnel

    最後,本文將公路隧道火災的通風模型進行簡化,考慮火災煙(節,摩擦,火風壓)的影響,提出了縱向式火災通風計算的方程式,並對中梁山隧道的左右、雁門關隧道的右進行了實例計算。
  11. Over the years, lrt technology has been upgraded to counter the negative effects of traffic jams, noise, environmental damage, air pollution, etc. featuring a small radius of curvature, multiple car units, modulated train set, enlarged cars both in transverse and longitudinal directions, low car floors, streamlined car design, advanced control systems, and flexible right of way, modern lrt systems have been successfully adopted to most environmental and social needs. they adequately display their merits as transportation systems ; i. e., the lrt system is able to co - exist with automobiles. the low car floor means that roads can act as station facilities, and passengers can get on and off the cars in the street

    輕軌運輸系統lrt源起於歐洲街道電車street car ,街道電車一度在都市捷運化與私人機動化的浪潮沖擊下迅速沒落,但隨著都會地區機動車輛不斷增加,道路交通塞噪音環境破壞排放廢氣污染問題嚴重惡化之際,輕軌車輛技術已不斷提升,具備小轉彎半徑能的聯結式車廂模組化列車編組車廂斷面長度加大加長低地板車廂型車廂設計,搭配先進控制系統及彈性的路權型式,使現代化輕軌系統具備有與生活空間結合重視環境問題與社會情勢並活用進化街車之都市交通工具等特徵與優點,如高性能輕軌列車與汽車共存,低底盤的車廂創造無障礙車站空間,道路即是車站設備,旅客可以在街區上下車,提供沿居民高度的便利性,消除交通堵塞噪音及空氣污染等,輕軌系統並與街景充分的調和,成為活動的都市意象。
  12. Fluent can imitate relation curve about heat transfer coefficient k and re, friction resistance coefficient f and re, the isoline about dot metrix between velocity field and temperature grads field. it also drafts several operating mode simulated stream field, velocity and temperature grads field

    應用fluent軟體擬合出傳熱系數與re關系曲、摩擦系數與re關系曲、速度與溫度場梯度點積值的等值圖, nu較大的幾個工況的模擬場、速度和溫度梯度場。
  13. This dissertation also presents the equivalent stiffness and damping models and the nonlinear hysteresis and saturation model of a kind of the mr damper developed by the experimental testing and modeling in order to describe accurately characteristics of the mr damper

    建立了磁尼器的等效剛度和等效粘性尼系數與施加電壓、激振頻率和振幅的關系以及能精確表示磁尼器的學特性的非性滯回模型。
  14. A flap vlave used in pumping station is a kind of hydraulic - operated automatic gate, which is similar to a hinged check vaive. because of their simple structure and reliability, being able to shorten the length of outlet passage and facilitate the starting of pumping system in comparison with siphonic vacuum - distroied cutoff scheme. so it is propitious to be used and save investment but at the same time, flap valves always show some disadvantage

    因拍門簡單、可靠,與虹吸真空破壞截閉鎖方式相比,可以縮短出水管道(道)長度,並利於泵系統起動,與快速閘門相比,拍門也有諸多優點,閘門門體易關閉不到位或卡住不能活動,因為門槽和?塊較軸孔容易殘留異物,閘門門體克服滑動不僅無機械增益,且和動不在一直上,門體易傾斜而自鎖,而拍門的工作可靠性則遠高於快速閘門。
  15. The paper researches the transient time precision and the following problem of the results developing with time for 2 - d high order blocking and matched method, at the same time, anlysing the stability of high order methods including boundary conditions. the results show that the domain decomposition and matched method using high order method can follow the time developing solution of taylor problem well, the computation result of the flow over a single or two tandem arranging circular cylinder agree the experiment and others " results well, moreover, the panting results of lift and drag coefficient are better than others

    本文利用高精度分塊耦合求解方法,對其瞬態時間精度和非定常時間發展解的跟隨性問題進行了研究,同時也對包含邊界條件的法高精度格式的穩定性也作了分析,研究結果表明高精度的分塊耦合求解方法可以很好地跟隨taylor問題的時間發展解,與單圓柱繞和雙圓柱繞的實驗結果比較以及他人結果比較符合很好,對升系數在渦脫落時的脈動問題的結果優於他人結果。
  16. It is pointed out that length of flown - in material ( lfm ), which flows into female die from underside of blank - holder during forming, is an external index of local forming resistance

    提出將入量(從壓料面下進入凹模型腔的局部材料素長度)作為衡量局部成形的指標。
  17. In industrial the temperature system is classed large nonlinear system. with associative memory neural network as identification and fuzzy neural network as control established model reference adaptive control system, succeeded realized single dealing control. model reference adaptive control system supplied new method for other lager nonlinear system such as flux, stress and fluid system

    溫度控制系統是典型的非性大滯后控制系統,根據本文提出的聯想記憶神經網路辨識器,與模糊神經網路控制器相結合,建立模型參考自適應控制方案,成功的實現了對單腔電加熱爐的控制,模型參考自適應控制方案可以向其它大滯后非性特性的過程式控制制參量(如量、壓、液位等)推廣。
  18. The results are compared with the cases in a single - layer fluid, showing that the density stratification can have a relative large effect on the drag and lift coefficients as well as the vortex shedding

    計算受迫振蕩圓柱體的升系數、系數隨時間的演化曲和圓柱體的尾渦分佈,以及圓柱體的受迫振蕩激發兩層體內界面的擾動,並與均勻體的情況進行了比較分析。
  19. In phase 2, the nonlinear dynamical properties of the simple, two - degree - of - freedom model of mr damping suspension systems are explored by the method of equivalent linearization

    運用等效性化方法,分析了懸架系統由磁尼器而引起的非性動學特性。
  20. All have straight - through ports to assure minimum turbulence, erosion, and resistance to flow

    所有道都是直通過道,確保湍、侵蝕和降到最小程度。
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