Kozuch, E., 2018 (Lubricants,v6,n4,99).pdf (2.61 MB)
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Effect of shaft surface roughness on the performance of radial lip seals

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posted on 21.11.2018 by Emilia Kozuch, Petros Nomikos, Ramin Rahmani, Nick Morris, Homer Rahnejat
Reduction of leakage from the shaft–radial lip seal conjunction is critical in ensuring enduring performance of entire lubrication system. This paper investigates leakage from three types of shaft surfaces, finished using different manufacturing processes. The measurement of surface topography is conducted in order to determine the pertinent roughness parameters which correspond to the observed sealing performance in real practical applications. It is found that the skewness of the surface topography correlates well with the anecdotal leakage failure rate. To quantify this association, a hydrodynamic model, accounting for shaft roughness in a deterministic manner is developed. The results from the numerical analyses confirm that the lubricant mass flow rate is reduced in the case of negatively skewed surface height distributions, when compared with the positively skewed profiles.

Funding

This research received funding from UK EPSRC through DTP scheme (EP/N509516/1, Project Reference Number: 1880270) and Neapco, Germany.

History

School

  • Mechanical, Electrical and Manufacturing Engineering

Published in

Lubricants

Volume

6

Issue

4

Pages

? - ? (16)

Citation

KOZUCH, E. ... et al, 2018. Effect of shaft surface roughness on the performance of radial lip seals. Lubricants, 6 (4), 99.

Publisher

MDPI AG © The Authors

Version

VoR (Version of Record)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution 4.0 International (CC BY 4.0) licence. Full details of this licence are available at: http://creativecommons.org/licenses/ by/4.0/

Acceptance date

07/11/2018

Publication date

2018-11-13

Notes

This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

eISSN

2075-4442

Language

en

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