contributor author | P. Bourgin | |
contributor author | B. Gay | |
date accessioned | 2017-05-08T23:18:59Z | |
date available | 2017-05-08T23:18:59Z | |
date copyright | April, 1984 | |
date issued | 1984 | |
identifier issn | 0742-4787 | |
identifier other | JOTRE9-28435#285_1.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/99097 | |
description abstract | Additives are commonly used to improve the performance of lubricating oils. Correlatively, the lubricant viscosity depends on the rate of shear: the fluid becomes non-Newtonian. Assuming that the nonlinear relationship between the rate of strain tensor and the stress tensor is cubic, the film equations are derived within the approximations of lubrication theory. The governing equation, which generalizes the Reynolds’ equation, is a nonlinear partial differential equation, subject to two nonlinear constraints. The particular case of a finite width journal bearing is considered here; this problem is solved by the finite-element method, using a gradient technique. The numerical results are compared with established results for newtonian lubricants. The influence of the non-Newtonian parameter on the pressure field and on the bearing capacity is predicted. | |
publisher | The American Society of Mechanical Engineers (ASME) | |
title | Determination of the Load Capacity of a Finite Width Journal Bearing by a Finite-Element Method in the Case of a Non-Newtonian Lubricant | |
type | Journal Paper | |
journal volume | 106 | |
journal issue | 2 | |
journal title | Journal of Tribology | |
identifier doi | 10.1115/1.3260906 | |
journal fristpage | 285 | |
journal lastpage | 290 | |
identifier eissn | 1528-8897 | |
keywords | Lubricants | |
keywords | Stress | |
keywords | Finite element methods | |
keywords | Journal bearings | |
keywords | Equations | |
keywords | Gradients | |
keywords | Lubricating oils | |
keywords | Partial differential equations | |
keywords | Stress tensors | |
keywords | Lubrication theory | |
keywords | Load bearing capacity | |
keywords | Tensors | |
keywords | Approximation | |
keywords | Shear (Mechanics) | |
keywords | Pressure | |
keywords | Fluids AND Viscosity | |
tree | Journal of Tribology:;1984:;volume( 106 ):;issue: 002 | |
contenttype | Fulltext | |