Scuffing detection of TU3 cam–follower contacts by electrostatic charge condition monitoring
Scuffing detection of TU3 cam–follower contacts by electrostatic charge condition monitoring
The increasing costs associated with lubricant development and qualification has driven the need for condition monitoring techniques to be deployed on test engines to maximise information gained from expensive testing programmes. This paper discusses the results from a motorised TU3 engine with electrostatic sensors focused on the cams. System characterisation tests and an oil starvation test were used to decouple charge mechanisms associated with a lubricated wear test, accelerated through the use of carbon black. Cross-correlation of various charge signal processing techniques, scanning electron microscopy and profilometry revealed that tribocharging dominated during running-in/mild wear and contact potential difference (CPD) dominated during the progression of severe adhesive wear. Tribocharging (the charge generated by a low conductivity fluid) has been shown to be affected by oil temperature, cam rotation speed and the presence of charged species within the lubricant. Contact potential differences was principally generated by the work function difference between oxidised and nascent regions associated with adhesive wear on the cam surface. Electrostatic monitoring which is sensitive to lubricant chemistry and wear, and can be implemented in an industry standard engine, has great potential for the lubricant industry
adhesive wear, cams and followers, condition monitoring, electrostatic charge, carbon black
113-128
Booth, J.E.
59846f5f-9568-4b42-b526-820f624b4fa7
Harvey, T.J.
3b94322b-18da-4de8-b1af-56d202677e04
Wood, R.J.
d9523d31-41a8-459a-8831-70e29ffe8a73
Powrie, H.E.G.
7a4ce31f-8441-47a3-827a-5463dcdfedfb
February 2010
Booth, J.E.
59846f5f-9568-4b42-b526-820f624b4fa7
Harvey, T.J.
3b94322b-18da-4de8-b1af-56d202677e04
Wood, R.J.
d9523d31-41a8-459a-8831-70e29ffe8a73
Powrie, H.E.G.
7a4ce31f-8441-47a3-827a-5463dcdfedfb
Booth, J.E., Harvey, T.J., Wood, R.J. and Powrie, H.E.G.
(2010)
Scuffing detection of TU3 cam–follower contacts by electrostatic charge condition monitoring.
Tribology International, 43 (1-2), .
(doi:10.1016/j.triboint.2009.05.004).
Abstract
The increasing costs associated with lubricant development and qualification has driven the need for condition monitoring techniques to be deployed on test engines to maximise information gained from expensive testing programmes. This paper discusses the results from a motorised TU3 engine with electrostatic sensors focused on the cams. System characterisation tests and an oil starvation test were used to decouple charge mechanisms associated with a lubricated wear test, accelerated through the use of carbon black. Cross-correlation of various charge signal processing techniques, scanning electron microscopy and profilometry revealed that tribocharging dominated during running-in/mild wear and contact potential difference (CPD) dominated during the progression of severe adhesive wear. Tribocharging (the charge generated by a low conductivity fluid) has been shown to be affected by oil temperature, cam rotation speed and the presence of charged species within the lubricant. Contact potential differences was principally generated by the work function difference between oxidised and nascent regions associated with adhesive wear on the cam surface. Electrostatic monitoring which is sensitive to lubricant chemistry and wear, and can be implemented in an industry standard engine, has great potential for the lubricant industry
This record has no associated files available for download.
More information
Published date: February 2010
Additional Information:
The National Centre for Advanced Tribology at Southampton (nCATS)
Keywords:
adhesive wear, cams and followers, condition monitoring, electrostatic charge, carbon black
Organisations:
Engineering Sciences
Identifiers
Local EPrints ID: 72245
URI: http://eprints.soton.ac.uk/id/eprint/72245
ISSN: 0301-679X
PURE UUID: d2cc2b9b-268a-42e0-8bb1-13056a3921c2
Catalogue record
Date deposited: 03 Feb 2010
Last modified: 14 Mar 2024 02:37
Export record
Altmetrics
Contributors
Author:
J.E. Booth
Author:
H.E.G. Powrie
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics