Results 191 to 200 of about 88,133 (255)

A novel Reynolds equation of non-Newtonian fluid for lubrication simulation

Tribology International, 2016
Abstract The non-Newtonian phenomenon is significant in hydrodynamic lubrication of some special lubricants, or elastohydrodynamic lubrication (EHL). However, the conventional methods to solve the non-Newtonian lubrication problem are either too complicated or inaccurate.
Qianqian Yang, Ping Huang, Yanfei Fang
openaire   +2 more sources

Computing hydrodynamic pressure in mixed lubrication by modified Reynolds equation

Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, 2012
Nowadays, even with the available computing power, complete deterministic solutions of large or dynamically loaded bearings are not possible in acceptable amounts of computing time. Therefore, in order to model mixed lubrication conditions, the Reynolds equation is modified by the introduction of flow factors that take into account the roughness ...
Aurelian Fatu, Dominique Bonneau, Ramona Fatu   +2 more
openaire   +2 more sources

A new modified Reynolds equation for ultrathin film gas lubrication

IEEE Transactions on Magnetics, 1996
A new modified Reynolds equation for solving the ultrathin film gas lubrication is proposed to overcome the complicated and time-consuming difficulties of solving the linearized Boltzmann equation. The model equation is based on modified high-order slip-flow velocity distribution with three adjustable coefficients, which are corrected according to the ...
null Chi-Chuan Hwang, null Rong-Fong Fung, null Rong-Fu Yang, null Cheng-I Weng, null Wang-Long Li   +4 more
openaire   +2 more sources

Generalized Reynolds Equation for Solid-Liquid Lubricated Bearings

Journal of Applied Mechanics, 1994
The continuum theory of mixture was employed to derive a generalized form of the Reynolds equation for the lubrication problems involving lubricants that contain solid particles. The derivation of the governing equations and the boundary conditions are presented. The governing equations are two coupled partial differential equations that must be solved
Dai, F., Khonsari, M. M.
openaire   +2 more sources

Solvability of the Reynolds Equation of Gas Lubrication

Journal of Mathematical Sciences, 2001
The first boundary-value problem for the Reynolds equation of the theory of gas lubrication with smooth data is studied. The existence and uniqueness of a solution are established. Bibliography: 7 titles.
B. S. Grigor'ev, S. V. Lupulyak, Yu. K. Shinder   +2 more
openaire   +1 more source

On lower-dimensional models in lubrication, Part B: Derivation of a Reynolds type of equation for incompressible piezo-viscous fluids

, 2020
The Reynolds equation is a lower-dimensional model for the pressure in a fluid confined between two adjacent surfaces that move relative to each other.
A. Almqvist, E. Burtseva, K. Rajagopal, P. Wall   +3 more
semanticscholar   +1 more source

Isogeometric analysis of Reynolds equation for hydrodynamic lubrication

2017 International Conference on Advances in Mechanical, Industrial, Automation and Management Systems (AMIAMS), 2017
This paper proposes exact geometry based Isogeometric analysis (IGA) to solve Reynolds equation for pressure distribution in hydrodynamic lubrication. The proposed methodology is established for hydrodynamic lubrication of thrust pad bearing, considering both infinitely wide thrust pad bearing and finite thrust pad bearing. The methodology is validated
Subrata Kumar Mondal, Hari K. Voruganti, Syed Ismail   +2 more
openaire   +1 more source

Symmetry Reduction of Reynolds Equation and Applications to Film Lubrication

Journal of Applied Mechanics, 1992
A symmetry reduction using a one-parameter spiral group is performed on a Reynolds equation in order to analyze this equation arising in the study of film lubrication. Approximate solutions are found for the time-independent case-both numerically and by the method of perturbation.
Abell, M. L., Ames, W. F.
openaire   +2 more sources

Generalized One-Dimensional Reynolds' Equation for Micropolar Fluid Film Lubrication

International Journal of Nonlinear Sciences and Numerical Simulation, 2002
Summary: This paper presents a theoretical study of some basic lubrication problems with micropolar fluids as lubricants. A generalized modified classical one-dimensional Reynolds' type equation for micropolar fluid film lubrication has been derived. This equation shows that the boundary condition on the spin makes the fluid to behave as a classical ...
Chenchu Raju, V. C., Vasudeva, R. Y., Yegnanarayana, G.   +2 more
openaire   +2 more sources

A new model for textured surface lubrication based on a modified Reynolds equation including inertia effects

Tribology International, 2019
For textured surface lubrication problems, a small texture aspect ratio and a large Reynolds number can lead to strong recirculation in the textures and significant convective inertia effects. When these effects cannot be neglected, the Stokes system and
M. Rom, S. Müller
semanticscholar   +1 more source