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contributor authorP. Bourgin
contributor authorB. Gay
date accessioned2017-05-08T23:18:59Z
date available2017-05-08T23:18:59Z
date copyrightApril, 1984
date issued1984
identifier issn0742-4787
identifier otherJOTRE9-28435#285_1.pdf
identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/99097
description abstractAdditives 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.
publisherThe American Society of Mechanical Engineers (ASME)
titleDetermination of the Load Capacity of a Finite Width Journal Bearing by a Finite-Element Method in the Case of a Non-Newtonian Lubricant
typeJournal Paper
journal volume106
journal issue2
journal titleJournal of Tribology
identifier doi10.1115/1.3260906
journal fristpage285
journal lastpage290
identifier eissn1528-8897
keywordsLubricants
keywordsStress
keywordsFinite element methods
keywordsJournal bearings
keywordsEquations
keywordsGradients
keywordsLubricating oils
keywordsPartial differential equations
keywordsStress tensors
keywordsLubrication theory
keywordsLoad bearing capacity
keywordsTensors
keywordsApproximation
keywordsShear (Mechanics)
keywordsPressure
keywordsFluids AND Viscosity
treeJournal of Tribology:;1984:;volume( 106 ):;issue: 002
contenttypeFulltext


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