摩擦指數 的英文怎麼說
中文拼音 [mócāzhǐshǔ]
摩擦指數
英文
frictional index-
The frictional dissipation will introduce an exponential decay.
摩擦耗散可導致指數式的衰減。The slope stability question is influenced by many kinds of inherent factors, for instance geological structure, intensity of rock body, development state of joint and crack, cohesive force ( c ) of the rock, interior angle of friction ( f ), groundwater, etc., these objective factors reflect generally their sizes with some quantitative parameter indexes in the past
邊坡穩定問題受多種內在因素影響，如地質構造、巖體強度、節理裂隙發育狀況、巖石的內聚力（ c ） 、內摩擦角（ ） 、地下水等，這些客觀因素過去一般用某些定量參數指標來反映其大小。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。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。According to deduction and calculation the critical inclination of failure face has a linear relation with the slope angle, a quadratic function relation with the friction angle of failure face, a logarithmic relation with the height of failure part, a negative exponent relation with the cohesion of failure face, and a quadratic function relation with the unit weight of failure body
通過推導和計算得知，滑面的臨界傾角與邊坡傾角呈線性關系，與破壞面摩擦角呈二次函數關系，與滑體高度呈對數關系，與破壞面的黏聚力呈負指數關系，與巖體重度呈二次函數關系。Using vogel ' s wear index as the rail side wear index, the paper analyzes the side wear variations of rail head when the parameters in the wheel / rail system vary, analyzes the influences of track irregularity on rail uneven wear on gauge corner emphatically. this paper analyzes the rail side wear dates measured by track division of shan hai guan since 1990, then gains the relationship between side wear and traffic volume and sums up the characteristics and regularities in the formation and development of side wear. in the end, some measures for regarding the side wear on curves are put forward
從輪軌摩擦、輪軌接觸幾何關系、輪軌接觸應力和輪軌蠕滑等方面對鋼軌側面磨耗機理進行了探討，從軌道幾何參數、機車車輛運營條件等方面對鋼軌側面磨耗的影響因素進行了重點分析和總結；應用輪軌系統動力學，建立了輪軌空間耦合振動時變模型，採用vogel側磨指數作為鋼軌側磨指標，系統分析了輪軌參數變化的情況下，軌頭側面磨耗的變化規律，重點分析了軌道不平順對鋼軌不均勻側磨的影響；對山海關工務段1990年以後現場測得的曲線鋼軌側磨數據進行了分析，通過擬合得到了鋼軌側磨量與運量的關系曲線，並總結了曲線上股鋼軌側面磨耗的特徵和發生、發展規律；最後提出了一些減緩曲線鋼軌側面磨耗的措施。According to the instance of the arch dam built, take the discount quotiety, the verification flood water level, the frictional quotiety and, the agglomerate force and as stochastic variable quotiety, calculate the reliability index of the abutment with the calculational programme after the average value and variable quotiety is known
對于所取的拱壩實例，以揚壓力折減系數，校核洪水位，摩擦系數、 ，凝聚力、為隨機變量，在已知其均值並設定變異系數的前提下，利用電算程序計算其壩肩巖體的可靠指標。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。Standard practice for calculating the international runway friction index
國際飛機跑道摩擦指數計算的標準規程Standard guide for measuring and reporting friction coefficients
摩擦系數的測量和報告的標準指南From a nonlinear equation with boussinesq similarity on the f plane including friction dissociation and using a new kind of general energy as lyapunov function, we got the nonlinear subcritical symmetric instability criterion which a new kind of symmetric stability criterions. the nonlinear subcritical symmetric instability indicates that the larger amplitude disturb may cause the its instability to increase and then excite the mesoscale rainstorm
非線性亞臨界對稱不穩定判據是從含摩擦耗散的f平面上boussinesq近似下的非線性方程出發，以一種新的廣義能量作為lyapunov函數，導得的一種新的對稱穩定性判據，理論指出較大振幅的擾動可能出現非線性亞臨界對稱不穩定增長，從而激發中尺度暴雨擾動的生成。At first it analyzes the bedding rock slope ' s bedded rock and its incontinuity face, and studies the stress, strain, stability ' s condition of the bedding rock slope, fully considering the cohesive force of rock layer and incontinuity face. geologic mechanics models of two types of bedding rock slope are set up, the instability coefficient of bedding rock slope under different mechanical parameters is computed, and the conclusion that the stability of bedding rock slope is relation to rock layerer, cohesive force of incontinuity face, inner friction angle and rock layer obliquity has been gotten. based on the above discussion, the thesis comes down the influence of rock layer and the incontinuity face on the bedding rock slope to incontinuity face ' s influence factors, and discusses other factors that influence the bedding rock slope ' s stability, so gains the evaluating and forecasting index marks
本文首先對順層邊坡的層狀巖體及其中的層理面和不連續面進行了分析，對其應力應變進行了研究，得出了順層邊坡的穩定性不僅與巖體中巖石的強度有關，還與巖體中層理面及不連續面的內聚力、內摩擦角及其傾角有關；論文建立了層理面和節理面的地質力學模型，討論了其力學參數變化對邊坡穩定性的影響，並在此基礎上將層理面和節理面歸納為順層邊坡穩定性的結構面影響因素，同時討論了影響順層邊坡穩定性的其他因素，從而得出順層邊坡穩定性的評價預測指標。Standard practice for calculating international friction index of a pavement surface
計算路面國際摩擦指數的標準實施規范After analyzing state - of - the - art of active and semi - active structural control in the world, the dissertation focus on semi - active structural control based on the magneto - rheological dampers. and a semi - active control method is put forward, which is based on lq ( linear quadratic ) optimum control theory, and imitates the optimum active - control force with bound value to control the structural response. then two structural models " simulation is conducted to compare the effectiveness and usefulness of the semi - active control with the passive control, and present the normed criteria to analysis the results
首先分析了mr可控阻尼機理，及mr阻尼器的兩種力學模型；然後根據最優控制理論中的二次型問題，提出採用限值擬合連續最優主動控制力的半主動控制策略，並以此控制方法針對半主動控制的強非線性控制問題，對兩種結構模型進行了模擬計算，並將半主動控制下的結構響應與採用摩擦型阻尼的被動控制結構及無控結構進行了詳細的比較分析，對計算結果提出採用范數指標進行補充評價的綜合評價方法；通過三種控制狀態下的模擬計算驗證了結構半主動控制的有效性與實用性。The influence of cross - correlations among three pairs of soil parameters on the reliability of reinforced retaining wall under various destructive models is discussed in this chapter. the three pairs of soil parameters are ( 1 ) the cohesion and friction angle, ( 2 ) the friction coefficient between fill and geotexile, and friction angle, and ( 3 ) the friction coefficient between fill and ground, and friction angle. the decision making of the reinforced retaining wall is carried on based on reliability theory by taking the minimum cost as the target
第四章對加筋土擋墻可靠性分析中有關參數的概率特性進行分析，以某加筋土擋墻為例，採用一次二階矩法對筋材抗拉、抗拔，擋墻整體抗傾、抗滑和地基承載力進行可靠性分析，並對兩種加筋方案情況下加筋土擋墻的可靠性進行分析比較;進行土性參數對可靠指標的敏感性分析;分析三對土性參數的互相關性，即土的粘聚力和內摩擦角、填土與筋材的摩擦系數和填土內摩擦角、填土與地基的摩擦系數和填土內摩擦角之間的互相關性對加筋土擋墻不同破壞模式可靠指標的影響。分享友人