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Please use this identifier to cite or link to this item: https://dspace.lboro.ac.uk/2134/22680

Title: Tribological investigation of truncated thermo-elastohydrodynamic elliptical point contacts in high performance transmissions
Authors: Elisaus, Vishak
Mohammadpour, Mahdi
Theodossiades, Stephanos
Rahnejat, Homer
Keywords: High performance transmissions
Spur Gear
Thermo-elastohydrodynamics
Non-Newtonian traction
Issue Date: 2016
Publisher: © the Authors
Citation: ELISAUS, V. ...et al., 2016. Tribological investigation of truncated thermo-elastohydrodynamic elliptical point contacts in high performance transmissions. Presented at the 3rd Biennial International Conference on Powertrain Modelling and Control (PMC 2016), Loughborough University, 7-9th Sept.
Abstract: In high performance cars, light-weighting is a major development driver. Consequently, the transmission can be particularly compact whilst being subject to large variations in torque and power. Pitch line velocities of up to 52 m/s and contact pressures of up to 3 GPa are routinely encountered under race conditions. Contact patch asymmetry due to angular misalignments between input and output shafts leads to the generation of high contact edge pressures, with the potential of inducing fatigue spalling, which can be exacerbated by observed and yet unexplained contact footprint truncation. Crowning is widely used as a palliative measure for these undesired conditions. The paper provides a time-efficient analytical method to solve the non-Newtonian mixed thermo-elastohydrodynamic (TEHD) problem under the extreme prevalent conditions in such high performance vehicle transmission systems. The approach expounded in this paper for the extreme tribological conditions has not hitherto been reported in literature.
Description: This is a conference paper.
Version: Accepted for publication
URI: https://dspace.lboro.ac.uk/2134/22680
Publisher Link: http://www.pmc2016.net/
Appears in Collections:Conference Papers and Contributions (Mechanical, Electrical and Manufacturing Engineering)

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