Acoustic emissions from lubricated hybrid contacts
Acoustic emissions from lubricated hybrid contacts
This study investigates condition monitoring of oil lubricated hybrid sliding contacts using acoustic emission (AE) techniques. Experiments were carried out on a pin-on-disc tribometer with a silicon nitride or M50 ball sliding on a silicon nitride or M50NiL steel flat disc at a sliding velocity of 3 m/s under high contact pressures. A commercially available aviation oil, EXXON Turbo 2380 (ET2380), was used as the lubricant. An oil starvation strategy was used to accelerate the failure of the contacts. The results show that the hybrid contacts have the lowest wear rates under steady state conditions. Cross-correlation analysis was used for the first time to explore the relationship between the instantaneous AErms signals and other signals. The results show that AErms have the best correlation with friction under the test conditions.
acoustic emission, lubricated, hybrid contacts, non-destructive evaluation, Si3N4, sensors, wear resistance
1629-1637
Wang, L.
c50767b1-7474-4094-9b06-4fe64e9fe362
Wood, R.J.K.
d9523d31-41a8-459a-8831-70e29ffe8a73
2009
Wang, L.
c50767b1-7474-4094-9b06-4fe64e9fe362
Wood, R.J.K.
d9523d31-41a8-459a-8831-70e29ffe8a73
Abstract
This study investigates condition monitoring of oil lubricated hybrid sliding contacts using acoustic emission (AE) techniques. Experiments were carried out on a pin-on-disc tribometer with a silicon nitride or M50 ball sliding on a silicon nitride or M50NiL steel flat disc at a sliding velocity of 3 m/s under high contact pressures. A commercially available aviation oil, EXXON Turbo 2380 (ET2380), was used as the lubricant. An oil starvation strategy was used to accelerate the failure of the contacts. The results show that the hybrid contacts have the lowest wear rates under steady state conditions. Cross-correlation analysis was used for the first time to explore the relationship between the instantaneous AErms signals and other signals. The results show that AErms have the best correlation with friction under the test conditions.
This record has no associated files available for download.
More information
Submitted date: July 2008
Published date: 2009
Keywords:
acoustic emission, lubricated, hybrid contacts, non-destructive evaluation, Si3N4, sensors, wear resistance
Organisations:
Engineering Sciences
Identifiers
Local EPrints ID: 65459
URI: http://eprints.soton.ac.uk/id/eprint/65459
ISSN: 0301-679X
PURE UUID: 51369321-7053-4fbc-9806-41caa7c2f706
Catalogue record
Date deposited: 17 Feb 2009
Last modified: 14 Mar 2024 02:46
Export record
Altmetrics
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
