friction coefficient 中文意思是什麼

friction coefficient 解釋
磨擦系數
  • friction : n. 1. 摩擦，阻力。2. 傾軋，沖突，不和 （between）。3. 擦熱皮膚。
  • coefficient : adj. 共同作用的。n. 1. 共同作用；協同因素。2. 【數，物】系數，率；程度。
  1. This article takes the lagrange equation as the principle, establishes mathematics modeling to the inertia brake vibration when it brakes, then simulates it with matlab. this paper educed the relation equations between, which are the inertia brake ' s friction coefficient of the brake ring and the friction disk, the mean radius, the braking force, rotation inertia of the driving top and the spline shaft, spiral climbing angle of the brake ' s concave - convex helicoid, the mean effort radius of the concave - convex helicoid, elasticity coefficient of the spring, quality of the driving top and the spline shaft, rotations inertia of the brake ' s rotation part besides the driving top and the spline shaft, suppresses sleeve. provides the theory basis for the inertia brake structure optimization

    本文以拉格朗日方程為理論基礎，對慣性制動器在制動時的振動進行數學建模，然後用matlab對其進行模擬，得出了慣性制動器在制動時振動角頻率分別與制動環和摩擦片之間的摩擦系數、制動力的平均半徑、主動頂和花鍵軸的轉動慣量、慣性制動器的凹凸螺旋面的螺旋升角、凹凸螺旋面平均作用力的半徑、彈簧的彈性系數、主動頂和花鍵軸的質量、慣性制動器除主動頂和花鍵軸外其他部分的轉動慣量和、頂壓套的質量等慣性制動器各零部件的物理參數之間的關系，為慣性制動器的結構優化提供了理論依據。
  2. The determination and reasonable selection of friction coefficient between belts for belt friction driving conveyor

    帶式摩擦驅動輸送機帶間摩擦系數的測定和合理選擇
  3. The solution presents representative profiles for the dimensionless velocity and the skin friction coefficient at different permeability and injection parameters

    給出了量綱為一的速度分佈以及在不同滲透參數情況下壁摩擦系數的變化。
  4. 1. 5 m in diameter ) were dispersed in n46 engine oil with different concentrations using ultrasonic respectively in order to study their tribological properties. the tribological experiments were carried out by mq - 800 four - ball tribometer and mm - 200 ring - on - block tribometer, in which extreme pressure properties, wear scan diameter, friction coefficient and wear volume loss were measured. the results showed that oil containing mos2 nanoparticles had a better wear resistance, friction - reducing and extreme pressure than the oil containing common mos2

    將上述制備得到的納米二硫化鉬顆粒和普通二硫化鉬粉末（ 1 . 5 m ）以不同濃度分散在n46機械油中，在mq - 800四球摩擦磨損試驗機上考察它們的最大無卡咬負荷（ p _ b值） 、耐磨性能和摩擦系數；並在mm - 200摩擦磨損試驗機上，通過環?塊摩擦副，比較和分析了它們的摩擦學特性。
  5. The springback angle increases with the increase of the punch round radius and clearances between the punch and the die while decreases with increase of the blank holder force, sheet thickness, friction coefficient and material hardening exponent

    回彈角隨凸模圓角半徑和凸凹模間隙的增大而增大，隨壓邊力、板料厚度、摩擦系數和材料硬化指數的增大而減小。
  6. In the paper, the finite element simulation software dynafrom is applied to analyze the affect of different blank holder during the forming process of laminose stepped tubular part, predict the possible defects such as wrinkle and break, obtain the rational style of blank holder avoiding the occur of defects and determine the rational configuration of die. the forming affect of thin - wall shallow stepped tubular part is analyzed when using different lubricate condition ( friction coefficient ). by this method, the relationship between friction coefficient and drawing depth of laminose stepped tubular part is obtained

    本文利用有限元模擬軟體dynafrom分析了不同類型的壓邊圈對薄壁階梯筒形件成形過程的影響規律，預測了採用不同類型壓邊圈時可能出現的成形缺陷如起皺和拉裂，獲得了防止缺陷產生的合理壓邊圈形式，確定了合理的模具結構形式；分析了不同的潤滑條件（摩擦系數）對薄板階梯筒形件成形的影響，獲得摩擦系數與薄板階梯筒形件的拉深深度的關系；分析了階梯筒形件成形過程中的不同階段的應力應變分佈、毛坯材料厚度變化情況，並獲得了階梯階梯筒形件能一次拉深成形的條件。
  7. So this wearable composite can use as common wearable composite, the friction coefficient is bigger if it is used as antifriction and wearable composite

    因此該材料可以用作一般的耐磨復合材料使用，若用作減摩耐磨復合材料則摩擦系數偏高。
  8. Compared the results of fea and the data of experiment, we can analyse that the distributing of the seismic stress of polymer - geogrid reinforced material is similar to that of the static stress, but the stress values of them is different ; the seismic similar friction coefficient between the earth and reinforced material fall with the increasing of earthquake acceleration, model acceleration respond along the height of the model, etc. thirdly, according to the comparison and analysis of the model seismic fea results and model experiment data, we can find the polymer - geogrid reinforced earth seismic fea is reasonable, which is composed by earth element, contact element and reinforced material element

    通過對比有限元計算結果和試驗數據，分析得出塑料土工格柵筋材的最大動拉應力的分佈與靜拉應力的分佈沿筋材的埋深大致相同，只是應力的值大小不同；地震作用下土筋間的動似摩擦系數是隨地震加速度的增加而減小；模型沿墻高方向的加速度響應等。接著，根據模型動力有限元時程分析結果和模型試驗數據的比較分析，得出由土體單元、接觸單元和筋材單元組合的塑料土工格柵加筋土非線性動力有限元分析模式的合理性。
  9. The results indicated that the dimension, shape and purity of base material could meet the functional demand of solid lubricant ; the thermal decomposition temperature of ptfe resin exceeds 400 c, but organic and inorganic packing filler added in ptfe made the water absorption rate of composite material increased, melting temperature and decomposition temperature decreased, in the meanwhile oxidative decomposition reaction was accompanied ; polar groups such as c = o, c - o - c and so on in the carbon fiber surface is advantageous to increase compatibility with other components and interlayer shearing strength ; uniform design experimental method could help to find the relationship between formula and frictional property by relatively small tests. the developing trend of each formula ' s friction coefficient could be showed by fitting curve ; the friction coefficient with no copper powder or graphite in formula was relatively big. this fact showed that copper powder and graphite should be used cooperatively ; it was found that when the ratio of copper powder to graphite by weight is 15 : 60, 30 : 30 - 40 and 60 : 15 - 30 respectively, the friction coefficient was relatively small. the degree of crystallinity of pure ptfe reached maximum by air cooling and the abrasion loss also reached maximum among three ones ; at the same time, the abrasion loss of solid lubricant sample was also the biggest among three ones ; when solid lubricant matched with 45 # steel axle or gcrl5 steel axle, lubricant transfer film could be formed on metal surface, thus direct contact between the surface of metal friction pair rings was reduced. their working life was elongated extremely ; there was mainly much graphite, a little ptff, moo3, feso4, cus and so on in lubricant transfer film

    試驗結果表明：所選原料的尺寸、形狀及純度可滿足固體潤滑劑的性能要求；聚四氟乙烯樹脂熱分解溫度超過400 ，但在ptfe中加入無機填料會使復合材料吸水率提高，熔融溫度及分解溫度降低，且伴有氧化分解反應；碳纖維表面含有c = o及c - o - c等極性基團，有利於提高其與其它組分的相容性，提高層間剪切強度；均勻設計試驗方法能夠用較少的試驗次數找出配方與摩擦性能間的關系，擬合曲線基本能表示各配方的摩擦系數發展趨勢；配方中不加銅粉或不加石墨，其摩擦系數均較高，說明銅粉和石墨應該配合使用；當銅粉15份、石墨60份時，銅粉30份、石墨30 - 40份時，銅粉60 、石墨15 - 30份時，摩擦系數均具有較低值；純聚四氟乙烯樹脂在空氣冷卻時結晶度最大，磨損量也是三者中最大的；同時，固體潤滑劑試樣在空氣冷卻時的磨損量也是三者中最大的：不論是固體潤滑劑與45 #鋼軸配副或是固體潤滑劑鑲嵌入銅套后與gcr15鋼軸配副，在金屬表面均可形成潤滑轉移膜，從而減少金屬摩擦副表面間的直接接觸，大大延長其使用壽命;轉移膜中主要含有較多的石墨、少量聚四氟乙烯、 moo 。
  10. It has been discovered that ( 1 ) in the region between 100 - 350 the friction coefficient is lowering along with the swing of temperature ; ( 2 ) the friction coefficient is the highest at the temperature of 500, and adhesive wear occurred ; ( 3 ) the global graphite grain layer appeared at the surface of wear scar at 450n and 300, and played an extremely good effect of lubrication, thus makes a fairly lower wear at the temperature of 300

    發現： （ 1 ）在100 ~ 350區間，隨溫度的升高，摩擦因數在降低； （ 2 ）在500時，摩擦因數最高，且發生了粘著磨損； （ 3 ）在450n ， 300時，磨痕表面出現了球狀的石墨顆拉層，這起到了極好的潤滑作用，使得300時，磨損較低。
  11. By using the various substrate such as glass, stainless steel, ito < wp = 6 > film and ceremic wafer, we discover that we can deposite the high quality cnx thin film with the high cohesion, high hardness and low friction coefficient on the ceremic substrate

    我們發現在載玻片，不銹鋼片及ito膜玻璃片上沉積的cnx薄膜，由於襯底和膜料的應力差較大，都有薄膜破裂、剝落現象。並且有成膜不均勻現象硬度也較低。
  12. A kind of linearized algorithm is given out to identify the friction coefficient when the material parameters are known

    進而給出了材料參數已知時，摩擦系數識別非線性問題的一種線性化演算法。
  13. 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。
  14. On the base of milling ball interaction during milling process, the powder height of each collision can be calculated. if the impact of milling ball takes as hertz elastic collision, the maximum real strain and the maximum tangential strain are obtained as follows, e, . , ln [ h, / ( h0 ? vrcos6 / 2 ) ] = vrsin6 / h0 ? / q, t2rt2 / 2om ~ h, j where s, p, v are maximum real strain, the maximum tangential strain, friction coefficient and the velocity of milling ball

    對球磨過程中磨球相互作用作了一些假設后，可以計算出每次碰撞所獲得粉末體高度值；將磨球的碰撞作為hertz彈性碰撞，碰撞時的速度分解為法向速度和切向速度得出粉末的最大真應變和最大切應變為湖南大學材料物理與化學專業碩士論文r 。
  15. Test method for friction coefficient of flexible graphite sheets by sliding

    柔性石墨板材.滑動摩擦系數測試方法
  16. Sliding friction coefficient of granular and powder mixture in inclined tube

    顆粒和粉體混合物沿斜滑道的滑動摩擦系數
  17. Friction coefficient caused by adhesion and ploughing relevant to impact wear

    與沖蝕有關的粘著與犁溝摩擦系數
  18. It is suggested that the practical value of friction coefficient should be taken according to various concrete statuses

    在實際應用中對摩擦系數的取值要根據編組場的具體情況而定。
  19. It is shown that : with the enhancement of er effects, the pressure and the thickness of lubricant film are obviously increased, while the friction coefficient and force are increased, the leak flow is reduced

    計算結果表明：隨著電流變效應的增強，油膜壓力和油膜厚度都有明顯提高，但是摩擦系數和摩擦力有所增加，端泄流量有所減小。
  20. A method is provided to measure the friction parameters of the bed. the maximum friction torque, coulomb friction torque, viscous friction coefficient and moment of inertia can be gotten by fitting the free reduced rate curve of the gimbals and measuring the motor current when the motor begins to rotate

    提出了一種測量轉臺摩擦特性的方法，通過對轉臺在無外推力作用下的速度衰減曲線的擬合以及電機啟動過程電流和轉速的測量，可以得到最大靜摩擦力矩、庫侖摩擦力矩、粘滯摩擦系數及轉動慣量。
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