摩擦因子 的英文怎麼說

中文拼音 [mócāyīnzi]
摩擦因子 英文
friction factor
  • 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...
  • 因 : Ⅰ動詞[書面語] （沿襲） follow; carry on Ⅱ介詞1 [書面語] （憑借; 根據） on the basis of; in accord...
  • 子 : 子Ⅰ名詞1 （兒子） son 2 （人的通稱） person 3 （古代特指有學問的男人） ancient title of respect f...
  • 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...
  1. The greeks called amber elektron, sun - made, perhaps because of this story, or perhaps because it becomes electrically charged when rubbed with a cloth and can attract small particles

    也許是因為當用布摩擦琥珀時，它會產生電荷且吸引分子。
  2. Based on the research of the characteristics of piezoelectric ceramic, this paper presents the analysis of the movement of the stator surface points and work principle of motor. this paper describes a theory about the influence of the ultrasonic vibration on the frictional properties of ultrosonic dring, and finds that the horizontal vibration produces friction driving force and vertical vibration affects horizontal driving effect

    並且對行波型超聲波電動機的減摩現象進行了研究，發現在接觸區定子表面上一點的水平振動產生摩擦驅動力，垂直振動只起影響水平驅動效果的作用，得出垂直方向超聲振動具有減振作用是引起超聲驅動動摩擦系數降低的原因。
  3. Contemporary glass conservatories showcase plants of the sonoran and chihuahuan deserts of north america in one wing and plants from the world s mediterranean climates in the other. the garden s gift shop stocks disposable cameras, film and botanical goods

    記住在你觀看的時候，穿上旅行靴和耐磨的褲子，再買一張地圖確定你的位置，因為看這些東西時，你的雙腿要不斷地在石頭間摩擦。
  4. 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。
  5. Accesses the net saw some people suggested, do not have to use the gauze turban because of friction to be able big, can first use the froth bath the emulsion to scratch on the neck, directly takes over the use of the hand and the finger helps the baby to wash, moreover wrinkle folding place must open every day washes, after then uses the hand to wash the neck again to strip with water, after washes may scratch the petroleum jelly, compared with moist also may isolate lets it separate between the meat friction

    上網看到有人建議，不要用紗布巾因為磨擦力會蠻大的，可以先用泡泡浴的乳液擦在脖子上，直接用手和手指頭幫寶寶撮洗，而且皺折處每天都要翻開洗，然後再用手去洗脖子後用水沖洗，洗好后可以擦凡士林，比較濕潤也可隔離讓它隔絕肉之間的摩擦。
  6. 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
  7. In this paper, by checking up the heat calculation about the experiment results of the single row tube and double waves belt, i come at the function of the heat transfer factor j and the reynolds number re, i also come at the function of the f r i ct i on factor ^ " and the reyno i ds number re

    本文還通過對單排雙波帶散熱器的實驗結果進行校核熱計算，回歸導出該種散熱器的傳熱因子j及摩擦因子f與雷諾數re的數學表達式，從而為用這種芯子根據廠家要求設計散熱器提供了理論依據。
  8. Effects of diamond particles and their adding contents on the coating hardness, friction coefficient, wear resistance, corrosion current density and microstructures were studied

    研究了金剛石粒子及其添加量對塗層硬度、摩擦因數、耐磨性能、腐蝕電流密度和微觀組織的影響。
  9. With the reference of many relevant materials, the author prepared a fined molybdenum disulfide powder with a average size of 800nm by ball milling, and a nano - copper with average size of 30nm in micromulsion solution method, and synthesized surface - modified titanium dioxide nanoparticles with average size of 40nm in organic media via sol - gel method. the tribological performances of three particles were studied by universal test as well, with the result of fined molybdenum disulfide powder with good reducing wear and antiwear performance at low load, nano - copper with good reducing wear and antiwear performance at high load, surface - modified titanium dioxide nanoparticles maintaining stable reducing wear and antiwear performance from low load to high load due to its characteristics of organic and inorganic nanocomposite. the results indicate that the nanocomposite is the most perspective oil additive. the reducing wear and antiwear mechanism of nano oil additive was studied with in - situ tribochemical principle. nano additives possess broadly developing prospect with its above - mentioned performance

    在參閱了大量文獻的基礎上，分別採用了球磨法、微乳液法、溶膠?凝膠法制備了超細二硫化鉬、納米銅粒子、表面修飾納米二氧化鈦，經原子力顯微鏡測試，獲得的超細二硫化鉬的粒度平均在800nm以內，納米銅粒子平均粒度約為30nm ，表面修飾納米二氧化鈦平均粒度約為40nm ，在萬能摩擦磨損試驗機上測試了三種粒子的摩擦學特性，結果表明：在合理的添加濃度范圍內，超細二硫化鉬在低載時具有優良的減摩抗磨性能，納米銅在高載時具有比較好的減摩抗磨性能，表面修飾二氧化鈦粒子因具有有機與無機復合物的特性，從低載到高載都保持穩定的減摩抗磨性能。
  10. Sio _ 2 nano particle has anti - rubs function is because sio _ 2 nano particle is very small and has the massive hydroxy, can forms the adsorption thin film within rub surface. so protected the solid surface improve the grease resistance to wear

    納米sio _ 2的抗疲勞機理是粒子很小且具有大量的羥基，可以在摩擦副間形成吸附薄膜，因而保護了固體表面，提高了潤滑脂的耐磨性。
  11. A constitutive model of 3d contact with friction is established with the use of penalty parameter and an incremental statement of problem is carried out

    藉助罰因子建立了三維摩擦接觸邊界的本構模型，給出了三維摩擦接觸問題的增量描述，推導了接觸問題的互補虛功方程。
  12. It was suggested that the difference in the tribological performance between mos2 nanoparticles and common mos2 particles was attributed to the surface and interfacial size - effect of nanoparticles and the formation of molybdenum trioxide thin film on the rubbed surface

    由於納米二硫化鉬顆粒具有納米粒子的表面與界面效應等特性，表面易於發生摩擦化學反應，生成含有氧化鉬的表面膜而起潤滑作用，因而有著比普通二硫化鉬更優良的摩擦學性能。
  13. The controllers have considered all sorts of imperceptible factors affecting the servo performances in a lpmsm servo system, which include the parametric uncertainties brought by the changes of the mobile mass, frictional coefficient, the thrust fluctuations aroused by the varieties of the magnetic density distributions and the time harmonic. the h state feedback controller restrains disturbances and uncertainties to keep the robust and stable performance. the ip controller, which has the ability of rapid response, is applied to satisfy the rapid performance

    在分析雙環控制問題時，針對直線永磁同步電動機，仔細考慮了能使伺服系統性能變壞的各種細微因素，如：永磁同步直線電機動子質量變化、摩擦系數變化等造成的模型參數不確定性，電機運行期間存在磁密分佈變化、時間諧波等產生的推力擾動等，採用了ip速度控制器和h _狀態反饋控制器相結合構成直線伺服的內環控制器，並輔助設計了外環的pi位置控制器。
  14. The first change was to install fat pipes rather than thin ones, which greatly reduced friction and hence allowed the system to use smaller pumps and motors

    第一個變更是舍棄細管子，使用粗管子；因為粗管中摩擦力小很多，用小一點的幫浦和馬達就可以推動。
  15. Based on the research of influencing factors and regularities of distribution of loess side slope stability in northwest, the author select pingshuo antaibao southern spoil bank as subject investigated, and abstract several the most rudimental influencing factors which are ubiquitous concerning slope stability in loess area such as sloping shape, slope ratio, bulk density, cohesive force, angle of internal friction, elastic modulus, poisson ratio, water immersion

    本文在探討黃土地區邊坡穩定性的影響因素及其分佈規律的基礎之上，選取平朔安太堡南排土場為研究對象，抽象出對于黃土地區邊坡穩定性具有普遍意義的幾個最基本影響因子：坡型、坡比、容重、內聚力、內摩擦角、彈性模量、泊松比、水。
  16. Through the model the inverse dynamic problem of stewart platform is solved and a foundation is made for stewart platform control used for 500m lt. meanwhile all the restrained forces acted at joints are found which provide analysis condition for the mechanism design. a simplified resultant force acted on the cabin by stewart platform is given which makes it possible to eliminate the dynamic coupling between the two subsystems by means of active vibration control

    基於newton - euler方法，建立了充分考慮動平臺慣性、支腿慣性、關節摩擦等因素的stewart平臺控制動力學模型，解決了已知動平臺運動規劃，求關節驅動力的動力學逆問題，為準確實現lt500m原型stewart平臺控制奠定了基礎；解出了各關節處的約束反力，為平臺機構設計提供了力分析條件；簡化給出了平臺對饋源艙的反作用力，使得採用振動主動控制技術消除兩級子系統之間的動力耦合成為可能。
  17. The contacting surfaces of both sides of the rubbing pair can be separated by the water film. therefore, pairing up with steel and under the condition of water lubricating, uhmwpe and its all composites filled with cu or cuo powder exhibit excellent tribological properties

    因此，在與鋼配副、水潤滑狀態下， uhmwpe及其各種以cu粉或cuo填充的機械科學研究院碩士研究生學位論文填料改性超高分子量聚乙烯復合材料的研製及其摩擦學行為研究復合材料的耐磨性能和減摩性都增強。
  18. This article studys the frozen coal microscopic adhesive structure, pointed out the intensity of frozen coal is the synthesis of chemical bond strength, intermolecular action, hydrogen bond strength, electrostatic force and friction force, because the coal freeze situation differents, effect of different factors are also different

    本文研究了凍煤的微觀凍粘結構，指出凍煤的強度是化學鍵力，分子間作用力，氫鍵力，靜電力和摩擦力等多種因素的綜合，因煤的凍結情況不同各因素所佔比例亦不同。
  19. In large rotating machinery using filmatic bearing ( turbogenerator, air compressor, etc. ) there is a potential trouble from impefect installation or running conditions, a metals " contact between rotors and shells. the trouble is usully called rubbing. the advantage of ae technologe in the rubbing diagnosis and early detection is showed. instead of classical ae characteristic parameters ( counts, amplitude, energy, duration and the other ones ) a new feature extraction by frequency analysis of ae envelop signals is discussed. both research of ae process and field experements indicate that periodic components in the envelop spectrum related to rotational speed increase evidently at the beginning of rubbing production, hence are highly sensitive to the rubbing fault diagnosis. according to the new design an acoustic emission equipment for the rubbing diagnosis named buaa ae testing system is developed and described

    汽輪發電機、空氣壓縮機等採用油膜支撐的大型轉動機械，由於安裝或運行中的原因，在轉子旋轉過程中，可能和器壁發生輕微的摩擦和碰擊，簡稱碰摩.聲發射技術在碰摩發生特別是故障早期診斷上有優越性.本系統的特點是沒有沿用傳統的計數、幅度、能量和持續時間等聲發射特性參數，而是在聲發射包絡信號的頻率分析中進行特徵提取.聲發射發生的過程分析和現場試驗都表明這種方法對碰摩檢測很敏感，在碰摩發生的起始階段，包絡譜中與轉速同步的周期性分量顯著增加.根據這種新的設計思想自行研製了buaa碰摩聲發射檢測儀並對此作了介紹
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