最大摩擦 的英文怎麼說

中文拼音 [zuìdàmócā]
最大摩擦 英文
friction, maximum
  • 最 : 副詞（表示某種屬性超過所有同類的人或事物） most; best; worst; first; very; least; above all; -est
  • 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...
  • 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. Fist of all, on the basis of the research of agone boffins, this author investigates the interaction mechanism of bolts and rock, and introduces the elastic ? lastic analytical resolution which is consist of the liner structure, the equivalent reinforced wall rock and the original wall rock in the simple loading from the equivalent well - proportioned view ; this solution is very important meaning for the engineering design. on the basis of coulomb friction model, the author introduces the finite element equation of the contact problem in order to provide the academic foundation for the application of msc. marc. finally, combining the engineering practice of the non - linear analysis of shield tunnel through yellow river of the south - north water transfer and using the model of friction, the author researched the evolution law of stress and displacement field in the structure of grouted rock bolts, and analyzed the effect to the stress and deformation of surrounding rock mass due to anchor supports

    首先，在前人研究成果的基礎上，對錨桿與圍巖的相互作用機理進行研究，利用全長錨固錨桿的中性點理論，從等效均化的角度來考慮錨桿對圍巖的加固作用，並推導了在簡單荷載作用下，含有襯砌、等效加固后的圍巖、原始圍巖三者的彈塑性解析解，對工程設計有著重要的參考意義；在數值模擬方面，以考慮錨固圍巖滿足規則化庫侖摩擦模型為基礎，利用虛功原理推導了接觸問題的有限元方程的計算格式，為開發運用大型商用有限元軟體msc . marc提供了理論根據，也形成了本文的理論基礎：最後，論文以南水北調東線穿黃隧洞穩定性分析項目為工程實例，利用本文所述的接觸問題的摩擦模型理論，對錨桿支護結構的應力場、位移場的變化規律進行了研究，分析了加錨支護對隧洞圍巖應力、變形的影響。
  2. A granular material designed for maximum stability should possess high internal friction to resist deformation under load.

    為得到最大的穩定性而設計的顆粒材料應具有高內摩擦力而抵抗荷載下的變形。
  3. 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。
  4. Many survey data refer to mortal down load and sedimentation be produced due to the negative friction in pile foundation. the inequable sedimentation endanger the pile foundation greatly

    國內外一些實測資料表明樁基礎在使用階段負摩擦力可能產生非常大的下拉荷載和沉降，尤其產生的不均勻沉降對基礎危害最大。
  5. The fifth chapter sum up the article and view the work. the simulation results indicate : ( 1 ) exchanging of sea - air and force of dynamical and thermodynamic processes is very important to bring and maintain sea surface wind. shf is mostly energy sources and lhf is negative effect in some area

    模擬結果充分表明： （ 1 ）感熱和潛熱的海氣交換和動量交換（摩擦作用）對于海面風的發展和維持起著重要作用，潛熱加熱是海面風中最主要的能源，感熱通量在一武漢理工大學碩士學位論文定區域對海面風風場有負面影響。
  6. 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。
  7. The sampling rate of the system can reach 3704 sps, and the crank angle is 1. 94 degree per sampling point corresponding to the crank speed of 1200r / min. in the mean time, the position signal of the piston could be collected by photo - electricity switch

    本研究首先設計和實現了摩擦力採集電子電路系統，裝置最大采樣率可達到3704sps ，在曲軸轉速為1200r / min時，對應曲柄轉角1 . 94度采樣點，並且可以採集用來確定活塞位置的光電開關的信號。
  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. We also studied the dynamic characteristics of cf / cu ( c ) - cu composites, the results show that, by the method of graphite is coated with copper, the coefficient of friction and the wear rates remarkably decreased. with the increase of the copper coated carbon fiber content, the wear rates of cf / cu ( c ) - cu composites is notably decreased, while the coefficient of friction is increased. with the increase of electric current density, the wear rate of cf / cu ( c ) - cu composites is increased

    研究發現，碳纖維鍍銅石墨-銅復合材料的電摩擦磨損性能與碳纖維含量存在一最佳值，當碳纖維含量為0 . 6時，其電摩擦磨損性能最好；對于不同電流密度下的電磨損性能的比較可以發現，通電磨損時的電摩擦系數要小於機械磨損時的摩擦系數，碳纖維鍍銅石墨-銅復合材料的電摩擦系數隨電流密度增大先減小而後增大，在電流密度為15a cm ~ 2時達到最小值；通電磨損量要遠大於機械磨損量，且隨著電流密度增大，磨損量增加。
  10. In this paper, the drive theory of the large ratio friction transmission is studied ; a new type elliptical cam wave generator is designed ; the large ratio friction transmission prototype is designed and manufactured ; based on the ansys finite element method software, structure of the elliptical cam is analyzed ; precision index of the manufactured large ratio friction transmission prototype, such as transmission accuracy, least step, stability of the least step, load capacity is measured by the absolute rotary encoder. by analyzing the measurement data and research content, it is think that the new elliptical cam wave generator could overcome a good many problems brought by processing errors, facilitate size precision adjustments, input moment can be achieved in the form of a pure force couple importing ; through this study, " the large ratio friction transmission prototype " could apply in practical engineering basically

    本文研究了大速比摩擦傳動的傳動理論;設計了新型橢圓凸輪波發生器，設計製作了大速比摩擦傳動樣機;用軟體ansys對所設計的橢圓凸輪結構進行了有限元分析;用19位絕對式編碼器測試了大速比摩擦傳動機構的傳動精度、最小步距、最小步距的穩定性以及帶負載能力等各項精度指標;對測量數據和研究內容進行了歸納和整理，認為新型橢圓凸輪波發生器克服了加工誤差帶來的諸多問題，新型橢圓凸輪波發生器可以進行尺寸精度調整，能夠達到輸入力矩以純力偶的形式輸入;通過本項研究，基本可以使「大速比摩擦傳動機構」在工程中得以應用。
  11. 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 。
  12. This reflects sino - america economic and trade friction continually, and the up - grade scale of frictions as well as the diverse forms of issues on antidumping, farm products, textiles, protection of intellectual property, rmb exchange rate issues and etc. this is not only bad to sino - america economic and trade relation, but also influents the development of chinese economy badly

    目前中美經貿摩擦不斷，已經成為制約中美經貿關系發展的主要障礙，中國政府為減少中美經貿摩擦在相關領域做出積極的努力並取得了一定的成績，中美經貿關系進一步發展存在巨大潛力。最後，為進一步改善中美經貿關系，文章提出了五點建議。
  13. A two dimension small scale force sensor is developed which is used in the adhesion and friction tests, the sensor works well in the experiments. elastic modulus of nine different polyester / silicon rubber mixtures is tested, the results show that mixtures ’ elastic modulus increases with the aggrandizing of mass percentage of polyester. mixtures ’ adhesion abilitiy and especially mixture a ’ s adhesion - friction relationship are tested. these results provide experimental evidences for the fabricating of synthetic gecko hairs. lastly, a primary analysis of nanoscale hair modle is done, some hair preparation method is introduced, and the synthetic gecko foot hair fabricated by model moulding method is tested

    測試九種不同配比聚氨酯/硅橡膠合成材料的彈性模量值，得出合成材料的彈性模量隨聚氨酯質量百分比增加而增大的結論;對九種合成試樣進行了粘著性能測試，對實驗結果進行比較分析和討論;對粘著力最大的a試樣進行粘著力與摩擦力關系的實驗，得出粘著狀態下a試樣摩擦力與粘著力成線性關系的結論。
  14. Acceleration, for instance, will be offset by air resistance and rolling friction, instead of a " max velocity. " robots crashing into the side of another robot will push it sideways, based on laws of friction and a semi - elastic collision

    例如，加速度將會被空氣阻力和滾動摩擦力抵消一部分，而不只受到「最大速率」的限制。根據摩擦力和半彈性碰撞原理，機器人撞到另一個機器人的一側時會把它推到一邊去。
  15. 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。
  16. The 3d model of mold is analyzed in 3d fem by using ugh. base on the analyses result, some danger structure of the model have been found and some suggestions of the mold modification are given. since doing a lot of research about the 3d cadvcae technology, a 3dcad system of selecting mold for aluminum material have been developed and the method of analyzing the 3d model is provided in this paper

    然後，為了能真實地模擬實際生產過程，進行鋁與模具鋼在一定表面粗糙度、不同溫度條件、不同潤滑接觸狀態下的最大靜摩擦系數實驗，總結摩擦系數隨溫度變化的規律性和取值范圍；最後，應用ug 17 . 0三維有限元cae模塊進行模具三維力場分析，根據三維有限元的結果分析，對模具危險部分進行預變形的處理和優化，改善模具受力變形的狀況。
  17. First of all i ' m working with new faces and that ' s always initially scary, like the first day of school. . and then wonderful because i obviously grow and learn so much from just rubbing shoulders with greatness

    首先，我和新面孔一起合作，那最初總有惶恐，就像開學的第一天. . .但之後是愉快的，因為我明顯地成長了，和肩膀的摩擦產生的偉大中學到了許多。
  18. Hinge support sleeve reduces friction and minimizes water hammer through independent plate suspension ( on larger sizes )

    鉸鏈支撐套管減小摩擦，並將通過獨立閥瓣中止時的水錘現象降到最小程度（更大的通徑） 。
  19. According to the movable condition, divided the pipe into the totally restrained pipe and the partly restrained pipe. put forward the conception and count ways of the most friction extens for no compenstate buried pipe

    根據管道的滑動狀態，將管道分為錨固段和滑動段，提出了無補償直埋最大摩擦長度的概念和計算方法。
  20. It means that the maximum friction force is at the positions of neither the approach nor the recess point, which is an original conclusion of this paper

    這就意味著最大摩擦力並非出現在嚙入點和嚙出點，這是本文具有創新意義的一個結論。
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