粘性摩擦 的英文怎麼說
中文拼音 [niánxìngmócā]
粘性摩擦
英文
viscous drag-
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Then the judging method is proposed, and the proposed method can consider the stress history and viscosity shear strength of soft soil. in this paper, a fem program dpfbm1. 0 ( double plastic foundation beam method ( version 1. 0 ) ) is established. with this program, the influence of some parameters on foundation excavation is fully studied, the parameters include : compression modulus, cohesive strength, angle of internal ficiction, effective angle of internal friction, the embedded length of the wall and building load
針對當前國內外彈性地基梁法存在的缺陷，基於對軟土流變性的研究，採取了剪應力判斷彈塑性狀態，以改進和完善基坑工程彈性地基梁法，推導了彈性狀態下地基反力系數的近似解，提出了採用剪應力組合判斷土彈簧彈塑性狀態的方法，編制了相應的彈塑性共同變形法分析程序dpfbm1 . 0 （ doubleplasticfoundationbeammethod （ version1 . 0 ） ） ，並採用該程序分析了壓縮模量、粘聚力、內摩擦角等參數變化對基坑工程的影響。Abstract : on the basis of general principles of mechanics and critical state soil mechanics theory, a theoretical formula determining the coefficient of earth pressure at rest for cohesionless soil is derived by means of combining hypoplasticity with critical state soil mechanics. the formula has a simple form and is only related to the effective angle of internal friction of soil. there is a slight difference between the calculated value of the formula and that of other formulae. the further investigation of the formula shows that it can be used to determine the coefficient of earth pressure at rest of cohesionless soil
文摘:在滿足一般力學原理和臨界狀態土力學理論的基礎上，本文將亞塑性理論與臨界狀態土力學相結合，推出了一個計算無粘性土靜止土壓力系數的理論公式.該公式形式簡單，僅與土的有效內摩擦角有關，其計算結果與常見的多個經驗公式的計算結果只有微小的差別.文中討論結果表明，該公式可用於確定無粘性土的靜止土壓力系數The results of test and theoretical calculation indicate that the friction device does not slide under minute earthquake, thus the control effort of f - ved corresponds with ved, and the action of frd is the same as pure brace. when disastrous earthquake occurs, the viscoelastic material reaches its shear limits and the friction device begins to slide, so the control effort of f - ved is the best
試驗結果和理論計算結果表明，在多遇地震下摩擦機構不起滑，粘彈性-摩擦阻尼器的減振效果和純粘彈性阻尼器相當，而摩擦阻尼器的作用相當于純支撐；在罕遇地震下粘彈性材料達到剪切極限，摩擦機構起滑，故粘彈性-摩擦阻尼器的減振效果最好。As a whole, the research work of this dissertation can be summarized follows : 1. in accordance with my design patent, namely, reinforced earth retaining wall of r c net, and based on the analysis of the work mechanism, failure pattern, bearing capacity and stability of the reinforced earth, a new concept is expounded, namely, the reinforced earth wall which is thought of as a compound structure increase not only c but also ~ in comparison with non - reinforced earth. some bearing capacity formula are first introduced under the circumstances that the reinforced earth wall fails because of the breakage of material or inadequate cohesion between reinforcements and soil
歸納起來，具體的研究和所獲得的一些重要成果如下： 1 、結合本人的設計專利? 「鋼筋混凝土網格式加筋擋墻」及工程實踐，在對加筋土的加筋機理、破壞模式、承載力和穩定性等方面進行深入分析的基礎上，提出了一個新概念，即經過加筋后的土體作為復合結構與原土體相比，不僅提高了內聚力，而且也提高內摩擦角；並在此前提下首次導出拉力破壞和粘著破壞兩種情形下的承載力公式，然後進行了穩定性分析。Novak layer method is introduced to obtain the vertical dynamic impedances of both an end - bearing pile and a floating pile in a homogenous stratum. and the vertical dynamic impedances of single pile are analyzed in homogenous elastic soil, inhomogenous viscoelastic soil homogenous viscoelastic soil. at the same time, the factors to influence the impedances of single pile are examined
本論文採用novak薄層法，推導了在均質地基中，端承單樁和摩擦單樁的動阻抗；並全面分析和對比了均質彈性、均質粘彈性和非均質粘彈性地基模型中的單樁的動力阻抗，考察了各種因素對單樁動力阻抗的影響程度。Moreover, it is a compatible raw material under the terms of the food sanitation law. also, through the use of newly developed complex technology, we have given this coating excellent non - adhesion, low friction and sliding capabilities, etc. thanks to these capabilities it has become possible to adjust the surface treatment performance to match a wide range of application purposes, equipment, etc
聚氨酯本身具有耐磨損性，高摩擦系數特性，還有防止靜電的導電特性，保證工廠安全的自動溶解特性，亦可用作食品衛生法對應的原料，此外通過最新開發的復合技術具備了無粘性，低摩擦性，光滑性等諸多優點，用途更廣泛，可適用於各種器械的表面處理施工。And also, the wear resistance at ambient temperature and of za27 alloyed with mn when lightly loaded is desirable but becomes worse at high temperature. the wear mechanism of the one mixed with both adhesive and abrasive wear under sliding friction conditions ( at high temperature )
Si的加入量為1 - 3時， za27合金的磨損量最少，高溫摩擦性能最好；加入mn后， za27合金在低溫輕載下耐磨性能較好，高溫耐磨性能不理想；在滑動摩擦條件下（高溫）的磨損以粘著磨損和磨料磨損兩種方式共同存在。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。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。In order to develop and consummate the analysis theory and calculation method of base - isolated structures, based on the research on restoring force model of isolation systems and the analysis on the nonlinear seismic response of base - isolated structures, the analysis on multi - dimensional and lateral - torsional coupled seismic response of base - isolated structures is developed in this paper. according to the mechanical performance of isolation systems, detailed analysis and improvement of the present research, an unilateral and a bilateral coupled visco - elastic hysteretic model for rubber bearings, an unilateral and a bilateral coupled visco - elasto - plastic differential hysteretic model for lead rubber bearings, an unilateral and a bilateral coupled modified visco - plastic differential hysteretic model for sliding friction bearings are proposed
為進一步發展和完善基礎隔震結構分析理論和計算方法，本文以隔震系統恢復力模型研究及基礎隔震結構非線性地震反應分析為基礎，對基礎隔震結構的多維地震反應及平?扭耦聯地震反應開展了以下幾方面的研究工作：根據隔震系統力學性能的特點，在現有研究成果的基礎上，對隔震系統恢復力計算模型進行了改進和創新，提出了普通疊層橡膠支座單向及雙向耦合粘彈性恢復力計算模型，鉛芯疊層橡膠支座單向及雙向耦合粘彈塑性微分型恢復力計算模型，摩擦滑動支座單向及雙向耦合修正粘塑性微分型恢復力計算模型。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。( 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。The tendency of the simulated curves of pull out forces vs. displacements agrees well with experimental results, indicating the use and power of the present approach
模擬出的抽拔力隨位移的變化曲線，能明確顯示出界面脫粘的開始、結束，以及完全脫粘后克服摩擦力的滑移過程，驗證了其應用的合理性。Analysis of the stick - slip vibration induced by rotating friction
旋轉摩擦誘發粘滑振動特性分析We built a test road and after one year, we used surface wave exploration to test. the result is that the repaired layer felt old road well and have no empty spot. we used the pendulum friction tested and the results are the wear - resisting property is better than cement concrete pavement and pendulum friction is higher than cement concrete pavement
此種材料同原有水泥混凝土路面的粘結性能強，強度上升快，韌性大，抗凍性好，防水抗滲；通過試驗路運營一年多的檢測結果表明：通過面波儀測定修補層與原路面粘結良好，沒有脫空點；利用擺式摩擦儀測定其耐摩耗性能優于原水泥混凝土路面。Adhesive friction, as of a wheel on a track or a tire on a road
附著摩擦力粘附性摩擦，如車輪在軌道上或輪胎在路面上的Special - shaped column frame, its seismic behavior is studied and a new dissipating - seismic - energy structure, r. c. special - shaped column frame with viscoelastic friction damper ( f - ved ) is proposed and studied. a three - dimension solid element model is established for a special - shaped column frame to study its seismic behavior and time history responses under earthquake, some conclusion is drawn about its characteristics of force and displacement under horizontal earthquake action
為了進一步推廣和擴大異型柱框架結構的應用范圍，本文對異型柱框架結構在水平地震作用下的受力特點和抗震性能進行了研究，並提出在異型柱框架中設置粘彈性?摩擦阻尼器（ viscoelastic - frictiondamper ，簡稱f - ved ） ，對其進行了水平地震作用下的減震控制研究。The calculations of aerodynamic heating and viscous friction forces on the surface of hypersonic flight vehicle
高超聲速飛行器表面氣動熱和粘性摩擦力計算In this paper, a theoretical investigation of the drag reduction for underwater submarine by riblet biomimetic non - smooth surface and microbubble carried out, the prime mechanism of two drag reduction technology is open out, and provide theoretical foundation for engineering, which proved efficiency of thruster
粘性摩擦阻力在低速前進時對航行器的阻力起主導作用，而在高速航行時壓差阻力是主要的，因此在設計當中綜合考慮了兩方面因素，使表面結構具有雙重減阻特性。分享友人