表面摩擦力 的英文怎麼說
中文拼音 [biǎomiànmócālì]
表面摩擦力
英文
force due to skin friction- 表 : Ⅰ名詞1 (外面;外表) outside; surface; external 2 (中表親戚) the relationship between the child...
- 面 : Ⅰ名詞1 (頭的前部; 臉) face 2 (物體的表面) surface; top 3 (外露的一層或正面) outside; the ri...
- 摩 : 摩構詞成分。
- 擦 : 動詞1 (摩擦) rub 2 (用布、 手巾等摩擦使干凈; 揩拭; 抹) wipe; scrub; clean 3 (塗抹; 搽) spre...
- 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...
- 表面 : surface; superficies; boundary; face; rind; sheet; skin; outside; appearance
- 摩擦力 : dynamical friction
- 摩擦 : 1 (互相接觸的兩物體作來回相對運動) rub; chafe 2 [物理學] (相互接觸的兩物體在接觸面上發生阻礙相...
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By analyzing and experimentally verifying the model, new ways of improving mixer performance were put forward. ( 1 ) heat water should be used in the mixer ' s temperature control to make the mixer work with optimal parameters. ( 2 ) the surface materials of the mixing chamber and rotors should be chosen rationally to change material surface energy and increase friction on them. ( 3 ) when the compound was processed under higher pressure of floating weight, shallow groovers or stripes parallel to the axle of the rotor should be made on the mixing chamber internal wall to increase the real contact area and improve mixing effect
通過對模型的分析和實驗驗證,提出了提高密煉機混煉效果的新途徑: ( 1 )密煉機溫度控制採用溫水冷卻,使密煉機處于最佳工作狀態; ( 2 )通過合理選擇密煉室和轉子表面材料以改變材料表面能來增大膠料與它們之間的摩擦力; ( 3 )在上頂栓壓力較大的條件下,在密煉室內壁與轉子軸線同方向加工淺的光滑槽可明顯改善混煉效果。Near the earth s surface, however, friction tends to cause the air to move slightly inward across the isobars
接近地球表面,摩擦力使空氣稍微向內越過等壓線。Being a sort of new principle micromotor in the fronitier of science. the ultrosonic motor ( usm ) is developed at recently twenty years. utilizing the stator surface particle elliptical motion excited by piezoceeramics, the usm is drived by friction force between the stator and rotor. compared with the conventional electromagnetic motor, the ultrasonic motor has the following features : high speed, high holding torque when power is off and so on. because of it ' s characteristics, the ultrasonic motor has obtained some widespread application in robots, precise instrument, house electronical appliance, sapceecraft automobile and micromechanism
超聲波電機( ultrasonicmotor )是近二十年來發展起來的一種新原理電機,其原理不同於傳統的電磁型電機,它是利用壓電陶瓷的逆壓電效應使定子的表面質點產生橢圓運動,通過定子和轉子之間的摩擦力驅動轉子運動。這種新型的電機與傳統電磁電機相比,具有響應快、不受電磁干擾、結構緊湊、低速、大扭矩、斷電自鎖等優點,因而在微型機械、機器人、精密儀器、家用電器、航天器、汽車等方面顯示出廣泛的應用前景。Variations in surface roughness of both guide and fiber surfaces have a marked effect on friction.
導紗器和纖維表面粗糙度的變動,對摩擦力都有顯著影響。Skin friction stress
表面摩擦應力Abstract : molecular deposition ( md ) film, a nano film, is assembled by the interaction of static charge between cationic and anionic compounds. the micro - friction properties of an md film on silica has been studied with atomic force microscope ( afm ). it has been found that the md film has lower coefficient of friction as compared with the original surface of silica. moreover, based on the analyses of the surface force versus distance curves, photographic image, friction force image, and modulated force image, it is concluded that the friction reduction effect of md film on silica is attributed to the surface adhesion reduction and surface micro - modification
文摘:利用原子力顯微鏡對石英巖表面單層分子沉積膜的微觀摩擦特性進行了研究,發現該分子沉積膜具有一定的減摩性.通過對其表面力-位移曲線、表面形貌像、調制力像和摩擦力像的進一步分析表明,石英巖表面分子沉積膜具有減摩作用的原因在於它能夠降低表面的粘著力並對表面具有微觀修飾作用Biology enzyme is adopted to deal with the rabbit wool fibre, which changes the modality and configuration of the rabbit wool fibre, improves fibre ' s surface friction coefficient, fortifies the holding force among the fibres, enhances the spinnability, and meliorates the depilation of the rabbit wool textiles
摘要對兔毛纖維採用生物酶處理,使其形態結構發生改變,從而提高了兔毛纖維的表面摩擦系數,增加了纖維之間的抱合力,提高了纖維的可紡性,改善了兔毛紡織品的脫毛現象。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。The decrease in cultivated average farmland mainly and the farm capital substituting function on the workforce embody agricultural repel strength. the absorbing forces in rural and urban area use one liner regression model predicting the absorbing power of the secondary industry and the tertiary industry in rural region and the urban as a whole. the shifting frictional force shows as economic cost and psychological cost mainly
農業排斥力主要通過人均耕地面積的減少和農業資本對勞動力的替代作用來體現;城鄉吸納力主要運用一元線性回歸模型分別預測了農村第二產業、第三產業和城鎮總體對農業勞動力的吸納能力;轉移摩擦力主要表現為經濟成本和心理成本。And vibration function make supplies viscidity and interior frictional force of particle reduce greatly, make the sport tempo of the particle of the supplies increase, has increased the number of times of colliding effectively, accelerate cement particle surface hyrate to speed that liquid phase spread, is it fully go on to mix and stir at micro competence to guarantee
而振動作用使物料顆粒間的粘性和內摩擦力大大減小,使物料顆粒的運動速度增大,增加了有效碰撞次數,加快了水泥顆粒表面水化物向液相擴散的速度,從而保證了拌和在微觀水平上的充分進行。Sliding friction is independent of the area of surface in contact
滑動摩擦力于表面接觸的面積無關。Near the earth s surface, however, friction tends to cause the air to move slightly outward across the isobars
接近地球表面,摩擦力使空氣稍微向外越過等壓線。Non - sinusoidal oscillation has the characters that the upward time of the continuous casting mold is longer than the downward time. it can reduce the friction between the mold wall and the strand surface, and prevents the strand from leaking and cracking, it can also improve the surface quality of slabs. it is the main development of continuous casting mold in the future
其中非正弦振動具有上升運動時間比下降運動時間長的特點,能減小結晶器與坯殼之間的摩擦力,防止坯殼的拉漏和拉裂,改善鋼坯的表面質量,是今後連鑄結晶器振動發展的主要方向。Result of numerical simulation shows that the grads of continuous phase " s velocities decreases with the presence of microbubble of which the diameter is 100 / / w, the profiles of air volume fraction in the boundary layers is similar to triangle or echelon, affected by interaction among the particle, there is a saturated air fraction, within the scope of saturated air fraction, increasing the air injection ratio can accrete the friction reduction ratio, under the condition of same air injection ratio, the free - steam velocity is larger, the effect of friction reduction is worse
計算結果表明,直徑為100 m的微氣泡能減小近壁面連續相的速度梯度;微氣泡在邊界層中的濃度分佈近似為三角形或梯形分佈;受粒子間相互作用的影響,存在一飽和濃度;減阻率隨噴氣量的增大而增大,直至飽和噴氣量,此後,增大噴氣量,壁面摩擦阻力變化不大;相同噴氣量下,來流速度越大,減阻率越低。This shows that sliding friction is proportional to the reaction between the surface in contact
這說明滑動摩擦力與接觸表面的作用力成正比。One of the important step of decreasing abrasion is lubracation, and the old lubrication oils only decrease the abrasion of the relative movement surface following with extending its " using life. it does n ' t produce self - compensation film on the friction surface and does n ' t produce zero abrasion and self - compensation repairing effects
減少磨損的重要措施之一是潤滑,然而傳統潤滑油只能起減少相對運動表面的磨損、延長其使用壽命的目的,而無在摩擦過程中產生自補償被磨損表面的能力,因此也就不可能產生零磨損效應和自修復效應。Standard test method for single wheel driving traction in a straight line on snow - and ice - covered surfaces
在覆雪或覆冰表面測定單輪直線驅動摩擦力的標準試驗方法Road vehicles - measurement of road surface friction
道路車輛.測量道路表面摩擦力Potassium hexatitanate whisker was studied by lateral force microscopy ( lfm ). the contrast of the friction between potassium hexatitanate and the substrate was found. the signal of the potassium hexatitanate surface was almost flat, which showed the friction property of potassium hexatitanate surface is uniform
利用側向力顯微鏡( lfm )對六鈦酸鉀晶須進行研究,發現六鈦酸鉀晶須和基體雲母的摩擦性質差別明顯,而六鈦酸鉀晶須表面摩擦性質比較均勻,信號上的差別主是由於六鈦酸鉀晶須表面的形貌起伏造成的。The numerical simulations are consisted of two parts : the first is to simulate the friction reduction by microbubbles on a flat plate ; the second is to simulate initially the friction reduction on the approximated ship model with the flat bottom
本文對微氣泡減小表面摩擦阻力的現象進行了數值計算。數值模擬分成兩個部分:第一部分是平板微氣泡減阻的數值模擬;第二部分是平底近似船模數值模擬的初探。分享友人