Subscale Tribofilm Tribological Modelling in Boundary Lubrication Using Multivariate Analysis
| Autor: | M J Payne, R Roshan, C P Warrens, Anne Neville, Ardian Morina, Martin Priest, X Xia |
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| Rok vydání: | 2011 |
| Předmět: |
Materials science
Mechanical Engineering Metallurgy 02 engineering and technology Surfaces and Interfaces Tribology 021001 nanoscience & nanotechnology Surfaces Coatings and Films 020303 mechanical engineering & transports 0203 mechanical engineering Partial least squares regression Principal component analysis Lubrication Composite material Lubricant 0210 nano-technology Boundary lubrication Performance model |
| Zdroj: | Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology. 225:58-71 |
| ISSN: | 2041-305X 1350-6501 |
| Popis: | A subscale tribofilm tribological performance model has been developed to investigate the sensitivity of the model to lubricant chemistries and tribological factors in boundary lubrication conditions. Tribological modelling of tribofilm performance in boundary lubrication deals with a large number of variables. Thus, multivariate techniques were used to obtain the subscale tribofilm friction and wear models in terms of additive concentration in the oil and tribological factors. Soft Independent Modelling of Class Analogy classification techniques such as principal component analysis and partial least squares regression were used to correlate the outputs friction, wear, and lambda ratio with additive concentration in a model oil and tribological factors. The results show that boundary lubrication can be divided into three ‘subscale’ lubrication regimes which can be defined as (a) severe, (b) moderate, and (c) mild boundary lubrication conditions. The predictions from the friction and wear models showed varied dependence on the variables within the subscale lubrication regimes. |
| Databáze: | OpenAIRE |
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