摩擦面積 的英文怎麼說
中文拼音 [mócāmiànjī]
摩擦面積
英文
friction area- 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...
- 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...
- 積 : Ⅰ動詞(積累) amass; store up; accumulate Ⅱ形容詞(長時間積累下來的) long standing; long pending...
- 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...
- 面積 : [數學] area
-
This increase in friction is attributed again to an increase in area of contact at the f/m interface by the swollen rayon yarn.
這種摩擦力的增加也是由於FM相交界面粘膠長絲吸濕膨脹引起接觸面積擴大的緣故。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The crystalline structure changes of pp induced by pan - milling were characterized by x - ray diffraction and raman spectroscopy. xrd analyses show that when pp was co - milled with uhmwpe, crystal transformation of pp occurred, its crystallinity and crystallite size decreased, whereas, only slight reduction of crystallinity and crystallite size were observed and no crystal transformation was found when pp was co - milled with wtr chips, and amorphization of pp was strongly enhanced by co - milling pp with iron
採用x -射線衍射研究了聚丙烯碾磨粉碎過程微觀結構變化, uhmwpe存在下pp發生晶型轉變、結晶度降低和晶粒尺寸減小;彈性材料wtr抑制pp塑性變形,碾磨導致分子堆積有序區域膨脹,晶面間距增大,結晶度下降;剛性材料金屬鐵與pp產生強烈摩擦,加快晶粒細化,晶格破裂導致非晶化。The nano diamond particle improve friction surface lubricate condition, mainly by the nano particle repair and inlay effection nanometer particle deposition in the friction contact region, fills the friction damage spot promptly, has the repair function, simultaneously prevents the crack from further development, achieves the goal of prolong fatigue life
納米金剛石微粒通過微粒修復作用和鑲嵌作用,改善摩擦表面的潤滑狀態。在摩擦過程中,納米微粒沉積在摩擦接觸區域,填補摩擦損傷部位,起到修復作用,同時阻止裂紋的進一步發展,延長了陶瓷球疲勞壽命。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。Based on the review, the fluid flow and heat transfer in the curved circular and rectangular pipes have been researched by employing perturbation method and numerical simulation with a physical model under the rotational orthogonal curvilinear coordinate in a rotating curvilinear pipe with multi - parameters. we firstly analyzed the fully developed fluid flow and heat transfer, mixed convection heat transfer, the development of flow and heat transfer in the inlet in different cross section ( circular, elliptical, annular and rectangular crossection ). the variations of the secondary flow, axial velocity, distribution of temperature, the friction force on the wall, the ratio of friction factor as well as the nusselt number with different dimensionless parameters had been examined in detailed
本文在總結和分析了一個世紀以來有關曲線管道流動和換熱特性的研究成果的基礎上,以旋轉正交曲線坐標系統下的多參數旋轉螺旋管道中的對流傳熱為物理模型,通過攝動方法和有限體積法,首次對各種截面(圓截面、橢圓截面、環形截面、矩形截面)旋轉曲線管道內充分發展流動的流動結構和傳熱特性(包括耦合對流傳熱特性)以及旋轉曲線管道開口段發展流動的流動結構和換熱特性進行了系統的數值模擬和理論分析,詳細討論了各種無量綱參數對管道內軸向速度分佈、二次流結構、溫度分佈、壁面摩擦力、摩擦系數比以及管道nusselt數的影響,獲得了若干創新性成果。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。This increase in friction is attributed again to an increase in area of contact at the fm interface by the swollen rayon yarn
這種摩擦力的增加也是由於f m相交界面粘膠長絲吸濕膨脹引起接觸面積擴大的緣故。This increase in friction is attributed again to an increase in area of contact at the f / m interface by the swollen rayon yarn
這種摩擦力的增加也是由於f m相交界面粘膠長絲吸濕膨脹引起接觸面積擴大的緣故。( 2 ) it is found that distilled water as lubricant can markedly reduce the accumulation of friction heat and temperature rise on the frictional surfaces of polymer. so the heat fatigue and adhesive wear decrease. moreover, a lubricating film forms on the interface between the counterpart and polymer when distilled water acts as polar lubricant
( 2 )潤滑劑水的存在,可大幅度降低聚合物磨損表面的摩擦熱積累及溫升,從而減少了基體的熱疲勞磨損和粘著磨損,同時,水作為一種極性潤滑劑,在摩擦界面上能形成一層潤滑膜,對摩擦表面起了一定的隔離作用。Through the study, we can see that on the one hand, in order to realize its supremacy strategy, the u. s. take advantage of the u. s - japan security alliance structure to demand that japan make a greater contribution to defense, and on the other hand, in order to make the u. s. - japan alliance ' s structure move effectively and carry out its own strategy, japan has been coping with the contradiction between its constitution and the u. s - japan security alliance structures, endeavoring to develop its defense policy and widen the range of the movement of its self - defense team
第六個方面是日美在日本海外派兵問題上的摩擦,就日本如何在美國的「國際貢獻」和「責任分擔」的不斷要求下,在海外派兵問題上從禁止到猶豫不決、再到積極迎合美國的態度轉變過程進行了考察,並指出日本也在這一過程中逐步表現急欲成為政治大國和軍事大國的野心。通過對日美軍事同盟摩擦的歷史進行回顧之後,本文對對日美防務摩擦所產生的原因進行了考察,並認為影響日美同盟摩擦產生的三個因素是國家利益因素、國家戰略因素以及政治文化因素。Tribological properties of molybdenum ion - plated and ion - surfurized composite coating on mild steel
鋼表面鉬沉積及滲硫復合改性層的摩擦學性能And the impact of every parameters of f - ved element, stiffness coefficient and damper coefficient of ved element, normal stiffness, tangent stiffness and sliding friction of frd element and the cross - section area of the brace on the capability of dissipating vibration energy is computed and analyzed
並對f - ved單元中ved單元的剛度系數、阻尼系數、 frd的法向剛度、切向剛度、滑動摩擦力及支撐橫截面面積等參數對單元阻尼效果的影響進行了分析研究。The characteristic parameters of effective debris in a ferrograph have been calculated in the present thesis, like area, perimeter, aspect ratio and granularity, in which some methods have been adopted such as smoothing, filtering and thresholding and so on, according to tribological theories and computer technologies and digital image preprocessing
本論文基於摩擦學原理和計算機技術,通過對鐵譜片進行數字化圖像預處理,採用對譜片圖像的平滑、濾波以及閾值二值分割等方法,計算出譜片中特徵磨粒的一些特徵參量,如面積、周長、粒度以及縱橫比等。According to the the regression analysis on the bloting and shotcreting roadways of henan pingmei group, the regression equation on the degree that absolute grade and area of roadway influence coefficient of frictional resistance is built in the paper. the notable character test of the regression equation is completed. at last, the degree that absolute grade and area of roadway influence coefficient of frictional resistance is discussed and summed up. the practical and guiding sense in choosing coefficient of frictional resistance of congeneric roadways is given in the paper
通過對平煤集團大量的錨噴巷道的回歸分析,建立了巷道壁面絕對粗糙度和巷道斷面積對摩擦阻力系數影響程度的回歸方程,並對回歸方程作了顯著性檢驗,最後對巷道粗糙程度和斷面積對錨噴巷道摩擦阻力系數的影響程度進行了討論和總結,對同類巷道摩擦阻力系數的選取具有實踐指導意義。It shows the nanometer particles have automation to make the friction surface in a comparatively even state. 4 ) through tribology chemistry function, the nanometer cacoj and cao particles form a deposited film on the wear scar ' s surface or strengthen the surface through a small amount of metal ca ' s diffusion to improve the friction surface ' s a
( 4 )納米碳酸鈣和納米氧化鈣粒子通過摩擦過程中的摩擦化學作用在磨斑表面上形成了沉積膜,少量金屬鈣通過擴散作用滲透到鋼基體表面,形成表面強化層,提高了表面的耐磨性。The fem results indicated that as to the rough surfaces in sliding contact, the value of the contact pressure was very high which coursed a high value of the heat flow rate, meanwhile the sliding time was not enough for the frictional heat to transfer, thus the highest value of the body temperature occurred just on the sliding surfaces, which possessed a sharp thermal gradient in direction perpendicular to the sliding surface. so the great thermal stress was caused just by the sharp gradient and the thermal elastic distortion with which the contact pressure changed occurred simultaneously, thus this change of the contact pressure would affect the temperature distribution in return
對于相對滑動的粗糙表面,因實際接觸面積小而導致接觸壓力很大,這樣使得熱流密度會很大,同時由於滑動時間很短,熱來不及傳導,最高溫度發生在摩擦表面,在垂直於摩擦面的方向有很大的溫度梯度,使得熱應力很大,且最大應力發生在表面,同時產生熱彈性變形,這種變形使得接觸區域內的壓力分佈發生變化,這種變化又反過來影響了接觸區域的溫度分佈。Compared with those of as - sprayed ring, hardness and tension strength of area near processing face are increased by 45 % and 40 % respectively. friction mechanical performance of the ring is improved at large extent, and especially the wearing amount is merely 13 % of as - sprayed rings. after dual - direction cyclic pressing, the pore - closed state and the distributing of density and hardness are nearly identical in every part of ring. the friction mechanical property is close to that of single - direction - cyclic - press ring
靠近壓力加工面部位,硬度較沉積坯提高了45 % ,拉伸強度較沉積坯提高了40 % 。雙向楔壓后孔洞閉合、密度硬度分佈都比較均勻。單向楔壓后,用壓力加工面作為摩擦面, al - 20 % si / sicp復合材料的摩擦磨損性能得到大幅度提高,尤其磨損量為楔壓前的13 % 。Lining area brake
襯片摩擦面積每個制動器Lining area axle
襯片摩擦面積每軸分享友人