Abstract
Bearing temperatures predicted by a misaligned grease-lubricated journal bearing simulation were compared with experimental data. The numerical simulation combines a steady state mixed thermo-elastohydrodynamic lubrication model with a semiempirical soap-thickened grease rheology model. Circumferential temperature profiles were measured using a test fixture and journal test specimens of 5.1 cm diameter and 1.9 cm wide over a range of bearing loads (3.8-30 kN) and angular misalignments (from - 0.08° to 0.05°) at 166 r/min rotational speed. The results show that the maximum temperatures in the numerical and experimental profile agree within 5 per cent over the range of loads and misalignments studied.
Original language | English (US) |
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Pages (from-to) | 423-435 |
Number of pages | 13 |
Journal | Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology |
Volume | 218 |
Issue number | 5 |
DOIs | |
State | Published - Oct 2004 |
Keywords
- Misaligned grease-lubricated journal bearing
- Rheology model
- Thermo-Elastohydrodynamic model
ASJC Scopus subject areas
- Mechanical Engineering
- Surfaces and Interfaces
- Surfaces, Coatings and Films