Abstract
In a lubricated, non-conformal conjunction piezoviscous effects associated with the lubricant and elastic distortion of the bounding surfaces can have a significant influence upon the generation of the lubricant film and consequently upon the oil pressure distribution. In many widely studied cases which have been concerned with surface motions of rolling/sliding, it has been shown that these effects enhance the load-generating capability of the oil-film. However, some machine elements experience more complicated bearing surface motions. For example, spinning as well as entraining occurs in the elliptical contact regions of angular contact bearings and some forms of continuously variable speed drives. In this paper, results from a study on the elastohydrodynamic lubrication of elliptical contacts with pure spin are reported. In contrast to the former situation, an unfavourable influence of the surface deflection upon the generation of the fluid film has been observed. Comparison with experimental observation demonstrated encouraging agreement.
Get full access to this article
View all access options for this article.