Journal ArticleDOI
Deterministic solutions and thermal analysis for mixed lubrication in point contacts
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TLDR
In this article, a deterministic numerical model for simulation of mixed lubrication in point contacts is developed, where the nominal contact area between rough surfaces can be divided into two parts: the regions for hydrodynamic lubrication and asperity contacts (boundary lubrication).About:
This article is published in Tribology International.The article was published on 2007-04-01. It has received 22 citations till now. The article focuses on the topics: Lubrication & Lubrication theory.read more
Citations
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Lubrication Mechanism of Concentrated Polymer Brushes in Solvents: Effect of Solvent Quality and Thereby Swelling State
TL;DR: In this article, the authors measured the frictional force and the coefficient μ between concentrated polymer brushes (CPBs) exhibiting ultralow frictional property was measured as a function of shear velocity υ and degree of swelling.
Journal ArticleDOI
A model to predict scuffing failures of a ball-on-disk contact
TL;DR: In this article, a point contact thermal elastohydrodynamic lubrication (EHL) model is combined with a heat transfer model to predict the friction coefficient, surface bulk temperature and surface local temperature distribution.
Journal ArticleDOI
An engineering approach for rapid evaluation of traction coefficient and wear in mixed EHL
TL;DR: In this paper, an engineering approach is introduced for estimating the traction coefficient and the wear rate in elastohydrodynamic lubrication of rough surfaces without the need of extensive numerical simulations.
Journal ArticleDOI
Polymer Brushes under Shear: Molecular Dynamics Simulations Compared to Experiments
TL;DR: Analysis of coarse-grained equilibrium and nonequilibrium molecular dynamics simulations to investigate dextran polymer brushes in an aqueous environment in molecular detail finds good agreement in the hydrodynamic regime and explains the observed leveling-off of the friction forces in the boundary regime by means of an effective polymer-wall attraction.
Journal ArticleDOI
Effects of raceway surface roughness in an angular contact ball bearing
TL;DR: In this article, a dynamic model is developed for angular contact ball bearings to investigate the effect of raceway surface roughness on motions of ball and subsurface stresses, in which the friction coefficient between ball and raceways is evaluated by an engineering approach with consideration of surface roughs and temperature rise due to the sliding.
References
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Book
Conduction of Heat in Solids
H. S. Carslaw,John Conrad Jaeger +1 more
TL;DR: In this paper, a classic account describes the known exact solutions of problems of heat flow, with detailed discussion of all the most important boundary value problems, including boundary value maximization.
Journal ArticleDOI
Contact of Nominally Flat Surfaces
TL;DR: In this article, the authors proposed a new theory of elastic contact, which is more closely related to real surfaces than earlier theories, and showed how the contact deformation depends on the topography of the surface, and established the criterion for distinguishing surfaces which touch elastically from those which touch plastically.
Journal ArticleDOI
An Average Flow Model for Determining Effects of Three-Dimensional Roughness on Partial Hydrodynamic Lubrication
Nadir Patir,H. S. Cheng +1 more
Journal ArticleDOI
A versatile method of discrete convolution and FFT (DC-FFT) for contact analyses
TL;DR: In this article, Discrete convolution and FFT (DC-FFT) is adopted instead of the method of continuous convolutions and Fourier transform for the contact problems.
A Full Numerical Solution to the Mixed Lubrication in Point Contacts full numerical solution for the mixed elastohydrodynamic lubrication (EHL) in point
Yuan-Zhong Hu,Dong Zhu +1 more
TL;DR: In this article, a new numerical approach that is simple and robust, capable of handling three-dimensional measured engineering rough surfaces moving at different rolling and sliding velocities is presented.
Related Papers (5)
A Computer Program Package for the Prediction of EHL and Mixed Lubrication Characteristics, Friction, Subsurface Stresses and Flash Temperatures Based on Measured 3-D Surface Roughness
Dong Zhu,Yuan-Zhong Hu +1 more