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Elastohydrodynamic lubrication and surface fatigue modelling of spur gears over the meshing cycle

Khaustov, Serghey, Clarke, Alastair and Evans, Henry 2017. Elastohydrodynamic lubrication and surface fatigue modelling of spur gears over the meshing cycle. Presented at: 44th Leeds-Lyon Symposium on Tribology, Lyon, 4-6 September 2017.
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Abstract

This paper presents the results of a method for evaluating spur gears based on the transient elastohydrodynamic lubrication (EHL) simulation of the full meshing cycle, taking into account the transient variation of contact kinematics and loading during the meshing cycle. The simulation incorporates measured surface roughness, and evaluates elastic stresses in the gear flanks, calculating the transient variation of stress (the stress history) for the tooth material as it passes through the contact, and applying a range of stress and strain-life methods to calculate fatigue parameters and cumulative fatigue damage. This allows a prediction of gear surface fatigue life for gears operating under mixed lubrication conditions, whilst taking into account the real, measured surface roughness.

Item Type: Conference or Workshop Item (Paper)
Date Type: Completion
Status: Unpublished
Schools: Engineering
Subjects: T Technology > TJ Mechanical engineering and machinery
Date of First Compliant Deposit: 15 September 2017
Last Modified: 15 Sep 2017 09:05
URI: http://orca.cf.ac.uk/id/eprint/104600

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