...Shaofei Shang; Xiaoshan Cao; Zhiqiang Liu; Junping Shi In this study, the normal stiffness of elastic contact between rough surfaces with asperities following Gaussian distribution is investigated using ubiquitiform theory, developed from fractal theory. In the generalized ubiquitiformal Sierpinski...

... contribute in carrying the imposed load. The plastic deformation of asperities during the running-in is taken into consideration. In the application of the load-sharing method, it is often assumed that asperity heights have a Gaussian distribution. This assumption has been relaxed in this model. Prediction...

... a normally (Gaussian) distributed elastic modulus. In this investigation, in order to determine the fatigue life, the model proposed by Raje et al. (“A Numerical Model for Life Scatter in Rolling Element Bearings,” ASME J. Tribol., 130, pp. 011011-1–011011-10 ), which is based on the Lundberg–Palmgren theory...

...) of the normalized contact semi-width, b ∕ a , versus the dimensionless load parameter W for different values of the dimensionless roughness parameter Q for nominal line contacts ( β = 1 ) 24 02 2004 28 04 2007 fractals Gaussian distribution...

... to describe the surface height distributions of engineering surfaces with various non-Gaussian distributions. The basic principle of this translatory system is to transform the distribution variables such that the translated system has a Gaussian distribution. These asperity-scale governing equations...

...Kyosuke Ono; Masami Yamane We numerically investigated the characteristics of contact force, adhesion force, and contact stiffness between a smooth contact pad and a small rough surface, such as a current magnetic disk surface. The computer-generated asperity had an isotropic Gaussian distribution...

.... In this study, an algorithm is developed to generate bimodal surfaces by superimposing particles with radii following a Gaussian distribution on a Gaussian rough surface. Two different cases are presented to produce composite surfaces with particles; the first case is particles sitting on a surface...

... are considered to be circles. The Gaussian distribution of heights and exponential ACF are considered as a benchmark to compare the results of the new model with the existing models. Using results from numerical models developed by other groups, the new model is validated. Comparing A n e...

... behaviors in the lubricating film with the absorbed layers and their interfaces as determined by rough surfaces with Gaussian distribution. The layers are expressed as functions of the standard deviations of each surface to characterize flow patterns between both rough surfaces. Velocity variations and heat...

...Ning Yu; Andreas A. Polycarpou The random Gaussian surface model proposed by Nayak is important to many statistical summit-based microcontact models. A Gaussian distribution is usually assumed for the summit heights as many surfaces have a Gaussian distribution of surface heights. In this work...

... ϕ * = distribution function of the normalized asperity heights ϕ G * = normalized Gaussian distribution of asperity heights ϕ W = Weibull distribution function of the asperity heights ϕ W * = normalized Weibull...