摩阻系數 的英文怎麼說

中文拼音 [mózǔxìshǔ]
摩阻系數 英文
coefficient of friction resistance
  • 摩 : 摩構詞成分。
  • 阻 : 動詞（阻擋; 阻礙） block; hinder; impede; obstruct
  • 系 : 系動詞（打結; 扣） tie; fasten; do up; button up
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 系數 : [數學] coefficient; ratio; modulus; quotient; factor
  1. Based on extensive investigation of construction technique history of chinese ancient buildings, the structure method, structure developing history and seismic behavior of chinese ancient timber structure buildings are analyzed in several respects of the structural system and form. through a series of experiments on constituent parts of chinese ancient timber building structure, including the tests on the corbels and brackets called dougong subjected to low cyclic reversed loadings, the tests on the wooden frame using the tenon - mortise joints as connections of column and beam subjected to low cyclic reversed loadings, the tests on vibration isolation effect of friction and slippage between column footing and their socle base, and a series of shaking table tests on a chinese ancient timber structure palace building mode under artificial earthquake at serving conditions, destroyed conditions and reinforced conditions, many valuable results of structures such as moment - curvature hysteretic loops of dougong structure and tenon - mortise joints under low cyckc reversed loadings, the static function, the seismic performance, energy dissipation, vibration reduction, energy - loss mechanism, nechanicalmode and failure mode were studied. aplenty of valuable parameters of the structure system were obtained, such as the natural period of structure, vibration modes, damping ratio, factor of vibration isolation, oscillate amplitude of ineitial accebration, velocity and displacement, magnitude of slippage, and the mechanism of structure failure and collapse etc. based on these research, the complete analysis of ancient timber structure under earthquake were carried out in which including mechanism analysis method, calculating mode, strength analysis of members and joints, strengthening methods for serving damaged ancient timber structure buildings were also taken into account

    依照宋代《營造法式》建造了抬梁式殿堂木結構構件及結構模型，對中國古代木結構中的典型構造如：柱腳在礎石頂面平擱簡支、柱架榫卯連接、柱高不越間之廣、側腳、生起、斗拱等的構造機理及結構功能進行了量化分析和實驗研究： （一）通過木柱石礎靜摩擦試驗，測定了柱腳與石礎古鏡面間的摩擦系數及摩擦力隨上部結構荷載變化的規律； （二）通過單柱承載力試驗，測定了古建築中木柱的受力變形特徵、破壞模式、及模型材料的變形模量、極限承載力、極限變形等參量； （三）通過柱架低周反復荷載試驗，測定了柱架的抗側移剛度、柱架恢復力特性及滯回曲線、榫卯張角剛度及其變化規律、柱架及榫卯的極限承載力和極限變形、及榫卯減振參數； （四）通過斗?低周反復荷載試驗和受壓試驗，測定了古建築木構件與木構件間摩擦系數，斗?抗側移剛度，斗?恢復力特性及滯回曲線，斗?抗壓極限承載力及受力變形規律； （五）通過抬梁式殿堂間架模型振動臺試驗，測定了殿堂木構架結構自振周期，地震反應振形、阻尼特性及阻尼比；按結構分層特點對柱腳、柱頭和斗?層上的屋蓋的地震反應採用多點同步測量，對柱根滑移、榫卯變形、斗?的變形、復位、耗能減振參數等進行了定量分析。
  2. Product character ： good flow, film smooth, excellent adhesion, reduce the coefficient of rub and cut down the obstruction of transportation

    作用同時可有效降低管道內壁摩擦系數，減少輸送阻力。
  3. Influencing factors of frictional resistance coefficient and main solutions to reduce frictional resistance coefficient

    輸氣管線摩阻系數的影響因素以及減阻的主要方法
  4. In the third chapter, the mathematical models of project system have been established, and simulation has been done on the simulink enviroment of matlab software kits. the simulation focus on the effects of main parameters on the dynamic characteristics of speed control system, and the main parameters include viscosity damp coefficient and friction torque of electrical motor shaft, internal leakage coefficient of pump / motor of hydraulic circuits, gas volume of pressure accumulator, viscosity damp coefficient of cylinder piston and different running building floors, etc. at last, theoretical research effects of the flow and pressure pulsation of pump / motor on car speed and oil volume leakage theory are discussed. the fourth chapter of this thesis concerns the research on the key items about hydraulic power control system according to the ens 1 - 2 and other hydraulic elevator standards

    論文第三章針對組成系統的各個模塊進行了機理建模，並且通過matlab軟體中的simulink圖形化模擬環境進行了本課題系統的模擬研究，主要針對影響系統特性的主要參數變化，動態分析系統的輸出特性，在上下行工況中，分析了電機軸系粘性阻尼系數、軸系摩擦力矩、主迴路蓄能器迴路液壓泵馬達內泄漏系數、蓄能器氣體容積、液壓缸柱塞粘性阻尼摩擦系數以及不同運行樓層工況等參數對系統特性的影響；最後對軸向柱塞泵馬達的流量壓力脈動對電梯轎廂速度的影響和蓄能器內油液體積損失機理進行了理論研究。
  5. Influence of soil body behind the abutment stress distribution and stress carry - over length due to different coefficient of friction is analysised, through the experimental results and the space finite element analysis results of the model, actual measurement results tally with the computing results well. ( 4 ) new type semi - integral abutment bridge is from optimization design of conventional abutment bridge - dashuiting middle bridge. not only bridge at both ends

    分析了不同摩阻系數對臺後土體應力分佈和應力傳遞長度的影響，並對試驗結果和有限元分析進行了對比，實測結果和計算結果吻合良好; （ 4 ）將有縫橋-大水町中橋優化設計為新型半整體式無縫橋，橋梁兩端均不設伸縮縫，路面也不設任何接縫。
  6. The experimental results of the flow characteristics of the mmc heat sink indicate that the critical reynolds number signifying the transition from laminar flow to turbulent flow is in advance ; under the same experimental conditions, the variation in entrance direction of the microchannel inlet and outlet has little effect on the microchannel ; the experimental values of the friction factor of the de - ionized water in a microchannel agree well with those calculated using the theoretical laminar formula ; furthermore, a comparison of the experimental results and simulation results shows that navier - stokes equation and rng - turbulence model can be used to model the laminar and turbulence flow regions in a microchannel ; meanwhile, the correlations of the flow resistance in the turbulent flow regions for the de - ionized water as the working fluids are obtained from experiments

    對歧管式單通道熱沉流動特性的研究結果表明，微通道內流體流態由層流向紊流轉變的臨界雷諾數提前;改變流體的進出口方向對熱沉總壓降造成的影響很小;摩擦系數的實驗值與理論值較接近;數值模擬結果能夠與實驗值較好吻合;並由實驗給出了紊流區流動阻力的實驗關聯式。此外，選用十二烷基硫酸鈉（ sodiumdodecylsulphate ， sds ）以及烷基多糖苷（ alkylpolyglycoside ， apg ）作為減阻添加劑，研究了表面活性劑添加對微通道流動特性的影響。
  7. The velocity profiles along the channel section are measured using the laser doppler anemometer. according to the velocity distribution, boundary shear and the coefficient of friction between the flow and rubber panel, is determined

    採用多普勒激光測速儀對過流斷面的流速分佈進行了測量，並根據流速分佈推求出壩面上橡膠板所受的水流剪應力，和水流對橡膠板的摩阻系數。
  8. The friction coefficient, critical vertical loads and critical frictional resistance strength have been worked out by means of the pullout tests under the different vertical loads, analysis of frictional characteristics between soil and material and analysis of the different work mechanism between direct shear test and pullout tests. the creep characteristic parameters of some typical reinforcement materials have been obtained by the creep tests under the loads for a long time and the rheological analysis

    對幾種典型筋材在不同法向荷載下進行了拉拔試驗，並進行了筋材與土介質的界面摩擦特性分析，直剪試驗與拉拔試驗不同機理分析，找出了影響摩擦特性試驗結果的主要因素；得出了筋材在工作荷載階段的摩擦系數、臨界法向中南大學博士學位論文荷載和臨界摩阻強度。
  9. Calibrating the gravity model consists of evaluating the parameters of the impedance function ( or the values in the friction factor table ) so that the gravity model reproduces, as closely as possible, the base year productions and / or attractions and the base year trip length distribution

    校準重力模型就是計算阻抗函數參數（或者摩阻系數表中的值） ，使其盡可能吻合基年產生和吸引，以及基年的出行距離分佈。
  10. 6th, wear resistant, pipe wall friction coefficient low, the resistance to flow is small, delivery capacity

    6耐磨性強，管壁摩擦系數低，流阻小，輸送能力強
  11. As an alternative to impedance functions, one can use a friction factor lookup table ( essentially a discrete impedance function ) that relates the impedance between zones to the attractiveness between zones

    對于阻抗函數的選擇，你可以採用摩擦系數查詢表（本質上也是一個離散阻抗函數）來描述小區之間的阻抗。
  12. Plastic deformation happened in the worn surface where fe element was found, so pam micro - fiber supported part of the load and prevented the further deformation. on the condition of high speed and high load, the worn surface of pam1 / nylon 6 composites was nearly melted and formed comparative uniform transfer on the surface of steel, which accounted for the rather low wear mass loss. the infrared analysis showed that the a small quantity of transition of crystal form from into of nylon and its composites happened during the friction because of the high temperature and strong sheering strength

    通過對復合材料耐磨性能研究表明：復合材料的摩擦系數隨載荷的增加而逐步下降，且磨損表面有明顯的塑性變形；從能譜分析結果來看，復合材料表面有fe的存在，表明pam微纖承受了部分載荷，並阻止了基體的進一步塑性變形及粘著轉移；在高速高載時， pam1 /尼龍6磨損表面處于粘流態，並在鋼環表面形成了連續的轉移膜，表現出較好的耐磨損性能，且在高溫和強剪切力的作用下，材料基體發生了少量的晶體向晶體的轉移。
  13. All of the results indicated the turbulent boundary layer had been turned into the laminar layer. the skin friction coefficient drops rapidly. this result not only proved the phenomenon of reverse transition had occurred, but also showed that this condition was drag - reducing condition

    實驗結果表明板面附近的流動已由湍流流動轉變為層流流動，同時平板表面的摩擦系數較沒有溫度梯度時有大幅度下降，不僅證明了邊界層逆轉捩現象的存在，也說明了這種條件起到了減阻的效果。
  14. It will become less than the theoretic value and the difference between them will augment with the increase of reynolds numbers

    表面粗糙度對層流區阻力特性影響明顯，層流區摩擦系數低於理論值，且其偏差隨雷諾數逐漸增大。
  15. The properties of product : extremely high wear - resisting performance, an extremely low cofficion ; fine person who lubricate by oneself, it si unnecessary the note oil, use the difficult card to die under the abominable condition ; antistatic, it is fire - retardant to resist, ageing - resistant, able to bear the corrosion of chemistry ( sour alkali and organic solvent ) ; can bear and assault, shake repeatedly ; mechanical performance is excellent, light, install it conveniently

    產品性能：極高的耐磨性能，極低的摩擦系數，優良的自潤滑性，不用注油，在惡劣條件下使用不易卡死；具有抗靜電，抗阻燃，耐老化，耐化學（酸、堿和有機溶劑）的腐蝕；能承受反復沖擊、震動；機械性能優異，重量輕，安裝方便。
  16. Comparison between the computations and field tests shows that the software can provide reliable predictions for natural ventilation cases and that the values for empirical constants including train friction coefficient used by the model are in the proper range

    通過數值計算結果與現場試驗結果的對比，說明該程序對隧道自然通風的計算結果是正確可靠的，同時，也說明了數值計算所採用的物理及數學模型和列車摩阻系數都是合適的。
  17. The sand is provided with the pseudo - cohesion c by reinforcement, which verified " the frictional reinforcement theory " and " the pseudo - cohesion theory " ; ( 2 ) the vertical pressure can influent the friction only within certain limits ; ( 3 ) the frictional performances of different filling with the same reinforcement are different ; ( 4 ) when the reinforcement and filling are similar, the development of the friction between reinforcement and filling is influenced by physical state of filling ; ( 5 ) the achievement of experiment are applied to project

    砂土加筋后具有較大的準粘聚力c值，這證實了關于加筋土原理中的「摩擦加筋理論」和「準粘聚力理論」 。 （ 2 ）當垂直壓力在一定范圍內時，垂直壓力越大，摩阻力越大；但當垂直壓力超出一定范圍后，其對摩阻力的影響逐漸減弱， f曲線趨于平緩，且似摩擦系數隨垂直壓力的增大呈非線性減小。
  18. Friction coefficient along the way : along the friction coefficient close to the wind of galvanized iron sheets

    沿程摩阻系數：沿程摩阻系數接近鍍鋅鐵皮風管。
  19. Coefficient of friction resistance

    摩阻系數
  20. The researching method is, firstly, to create a flow field model which is testified to be reliable on a large area, and to research the variations of discharge entering and out - flowing from hangzhou bay ; secondly, to simulate the discharge variation of main interest area near the bridge axis with a denser grid in a subarea of the coarse model

    研究方法是首先建立大范圍的可靠適用的流場數值模型，研究進出杭州灣的流量變化；然後對感興趣的區域嵌套加密網格，利用橋墩物理模型測定的等效底摩阻系數，研究建橋前後在橋軸線上的流速、流量變化。
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