Thermal elastohydrodynamic analysis of circular contacts Part 2: Non-Newtonian model

Autor:	H. J. Kim, P Ehret, D Dowson, C. M. Taylor
Rok vydání:	2001
Předmět:	Physics::Instrumentation and Detectors Mechanical Engineering Surfaces and Interfaces Physics::Classical Physics Surfaces Coatings and Films
Zdroj:	Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology. 215:353-362
ISSN:	2041-305X 1350-6501
DOI:	10.1243/1350650011543592
Popis:	The numerical developments described in Part 1 are extended to incorporate the consideration of non-Newtonian effects, and fully coupled solutions of the thermal non-Newtonian elastohydrodynamic lubrication point contact problem are presented. The numerical findings are compared with a series of experimental results performed by Cann and Spikes with a steel-sapphire point contact in pure sliding conditions. Fair agreement with the experimental results is obtained in terms of surface temperature. Comparison of the results under identical conditions but with a steel-steel contact is also undertaken and shows that a steel-sapphire contact represents a good simulator of a steel-steel contact in terms of temperature and film thickness. The influence of the viscosity relationship is also considered and reveals that the Yasutomi et al. equation leads to only a marginal difference compared with the Roelands equation for the cases considered.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7032e6c40b2b84fad2b0dd13dca87817 https://doi.org/10.1243/1350650011543592 Zobrazit plný text záznamu