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Effects of profile errors on lubrication performance of helical gears

Lookup NU author(s): Dr Robert Frazer, Professor Brian Shaw

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Abstract

Analysis of the elastohydrodynamic lubrication (EHL) of gears generally assumes that the tooth flanks are smooth surfaces. There is considerable interest in establishing the extent to which smooth surface analyses are distorted by the presence of surface roughness. The current paper concerns a different scale of deviation from the specified surface profile, namely involute profile error. The paper quantifies the deviation from the smooth surface behaviour using standard profile error measurements, and also considers how the means by which profile error is measured influences the outcome/conclusions. Transient EHL analyses of the meshing cycle of helical gears taking profile error data from a gear measuring machine are compared with analyses using equivalent measurements determined by the waviness from surface profilometer measurements.

Publication metadata

Author(s): Clarke A, Jamali HU, Sharif KJ, Evan HP, Frazer R, Shaw B

Publication type: Article

Publication status: Published

Journal: Tribology International

Year: 2017

Volume: 111

Pages: 184-191

Print publication date: 01/07/2017

Online publication date: 22/02/2017

Acceptance date: 21/02/2017

Date deposited: 16/03/2017

ISSN (print): 0301-679X

ISSN (electronic): 1879-2464

Publisher: Pergamon Press

URL: https://doi.org/10.1016/j.triboint.2017.02.034

DOI: 10.1016/j.triboint.2017.02.034

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