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contributor authorL. Lunde
contributor authorK. To̸nder
date accessioned2017-05-08T23:54:52Z
date available2017-05-08T23:54:52Z
date copyrightApril, 1997
date issued1997
identifier issn0742-4787
identifier otherJOTRE9-28526#315_1.pdf
identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/119495
description abstractNumerical simulations of the lubrication of rough surfaces have been done using the Finite Element Method. Only pure pressure flow conditions have been considered. The correlation coefficient between pressure and height, pressure and height gradients etc. are presented for two different isotropic suifaces. For comparison, one slightly anisotropic surface and one surface with pure transverse roughness have also been investigated. The three-dimensional surface roughnesses have been produced numerically using Finite Impulse Response (FIR) filters and FFT. The only two significant correlations are between the pressure and the height gradient in x-direction and between the height and the pressure gradient in x-direction. The correlation coefficients can be used to apply better boundary conditions when analyzing the lubrication of a rough bearing, and how this can be done has been roughly explained.
publisherThe American Society of Mechanical Engineers (ASME)
titleNumerical Simulation of the Effects of Three-Dimensional Roughness on Hydrodynamic Lubrication: Correlation Coefficients
typeJournal Paper
journal volume119
journal issue2
journal titleJournal of Tribology
identifier doi10.1115/1.2833216
journal fristpage315
journal lastpage322
identifier eissn1528-8897
keywordsLubrication
keywordsComputer simulation
keywordsSurface roughness
keywordsPressure
keywordsGradients
keywordsPressure gradient
keywordsFlow (Dynamics)
keywordsFinite element methods
keywordsImpulse (Physics)
keywordsBearings
keywordsBoundary-value problems AND Filters
treeJournal of Tribology:;1997:;volume( 119 ):;issue: 002
contenttypeFulltext


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