Mohammadpour_etal-JMBD-14-0053-R1.pdf (1.08 MB)
Roller bearing dynamics under transient thermal-mixed non-Newtonian elastohydrodynamic regime of lubrication
journal contribution
posted on 2015-03-09, 15:15 authored by Mahdi Mohammadpour, P.M. Johns-Rahnejat, Homer RahnejatThe paper describes a combined tribodynamics analysis (dynamics and contact tribology) of cylindrical roller bearings of
a heavy duty truck transmission under high applied loads. The dynamic analysis provides the transient variations in
contact load. It also determines the vibration spectrum of the bearing as well as that of contact dynamics. It is shown that
with sufficient preloading and/or interference fitting a widely spread loaded region results, which reduces bearinginduced
vibration. The transient tribological analysis, including thermal analysis with a novel and realistic lubricant
inlet boundary condition demonstrates that non-Newtonian mixed elastohydrodynamic regime of lubrication is prevalent,
but with reduced friction compared with unrealistic dry Coulombic friction, which is often assumed in literature.
Funding
The authors wish to acknowledge the support of Wolfson School’s PhD Scholarship Scheme.
History
School
- Mechanical, Electrical and Manufacturing Engineering
Published in
Part K: Journal of Multi-body DynamicsCitation
MOHAMMADPOUR, M., JOHNS-RAHNEJAT, P.M. and RAHNEJAT, H., 2015. Roller bearing dynamics under transient thermal-mixed non-Newtonian elastohydrodynamic regime of lubrication. Proceedings of the Institution of Mechanical Engineers, Part K: Journal of Multi-body Dynamics, forthcoming.Publisher
SAGE Publications / © IMechEVersion
- AM (Accepted Manuscript)
Publisher statement
This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/Publication date
2015Notes
This article was published in the serial, Proceedings of the Institution of Mechanical Engineers, Part K: Journal of Multi-body Dynamics [SAGE Publications / © IMechE]. The definitive version is available at: http://dx.doi.org/10.1177/1464419315569621ISSN
1464-4193Publisher version
Language
- en