Contrary to previous works in the literature, the newly proposed system in this paper aims to determine the coefficient of friction (COF) of a soil for aiding in the safe movement of blind and visually impaired
μst is the static friction coefficient between the lower and ground plates, Δμ is the difference between the maximum friction coefficient and the dynamic friction coefficient, α is a constant, and fB is the force normal to the friction surface. From: Vibration Control and Actuation of Large...
Adhesion is a function of the friction at the contact point of wheel/rail—that is, effective tractive effort is the production of the total weight on the drivers multiplied by the coefficient of friction between wheel and rail. The friction or adhesion factor represents the percentage of ...
Collisions between objects are a relatively common phenomenon in nature. Analyses of collision processes can greatly contribute to solving problems such as impact-rub faults and particle impacts. The coefficient of restitution is a critical parameter in
The following formula can calculate the tangent value of the obstacle angle of the triangular grid. This angle represents the ability of meshes to hinder flow. The larger the obstacle angle is, the stronger the flow friction is $$I_{i} = \tan \theta^{*} = - \tan \theta \cdot \cos...
5.The formula of calcuating average coefficient of refraction is inferred.推导出大气折光平均折射系数的计算公式。 6.NUMERICAL CALCULATION OF HIGH ORDER ABERRATION COEFFICIENTS OF RADIAL GRIN LENS梯度透镜折射率分布高次项系数的数值计算 7.A Practice of Asset Discount Function in the Constant Coefficient ...
Characteristic coefficient of particles α Area ratio between pore and representative elementary volume 1. Introduction Pressure drop loss of fluid flow through porous media is present in a great deal of important environmental and industrial applications such as groundwater hydrology, soil depollution, ...
With the application of the friction theory and the vector geometry, the formula of anti-slide stability safety coefficient is presented based on the non-linear FEM analysis. 从摩擦理论和矢量几何出发,基于非线性有限元计算成果,导出了三维可能滑体的抗滑稳定安全系数计算公式,并根据工程稳定问题的力学机...
Thethermal diffusion coefficientof the crystal was also measured by the l. 用激光脉冲法测量了晶体的热扩散系数,比较了晶体a轴和c轴的热扩散系数随温度的变化关系。 2. The relationship among density, component content,thermal diffusion coefficientand friction properties of C/SiC composites was studied. ...
Using the triaxial test data and the centrifugal test results, quantitative estimation and analysis of the effect of soil friction angle on the bearing capacity factor (N γ )has been presented. 运用三轴试验以及离心试验结果 ,从数值上计算并分析了土的内摩擦角对承载力因数Nγ 的影响 ,承载力因数N...