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Characterising the acoustic emission from a simulated gear contact in mixed lubrication conditions

Hutt, S. M., Clarke, A., Pullin, R. and Evans, H. P. 2019. Characterising the acoustic emission from a simulated gear contact in mixed lubrication conditions. Presented at: 6th International Conference on Condition Monitoring of Machinery in Non-Stationary Operations, Santander, Spain, 20 - 22 June 2018. Published in: Fernandez Del Rincon, Alfonso, Viadero Rueda, Fernando, Chaari, Faader, Zimroz, Radoslaw and Haddar, Mohamed eds. Advances in Condition Monitoring of Machinery in Non-Stationary Operations: Proceedings of the 6th International Conference on Condition Monitoring of Machinery in Non-Stationary Operations, CMMNO’2018, 20-22 June 2018, Santander, Spain. Applied Condition Monitoring Cham: Springer, pp. 400-408. 10.1007/978-3-030-11220-2_41

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Abstract

Acoustic Emission (AE) measurement has been long established as a sensitive tool for detecting damage and failure in engineering structures, where sensors are used to detect the elastic stress waves originating from crack growth, impact damage, plastic deformation and other failure mechanisms. This paper examines the sensitivity of AE to mixed lubrication conditions, in order to evaluate the technique for monitoring heavily loaded power transmission gear systems where roughness scale fatigue phenomena such as micro-pitting are a problem. Experiments were conducted using a power-recirculating twin disc rig designed to investigate elastohydrodynamic contacts. Speed and temperature were varied in order to instigate a range of lubrication conditions from full film to heavily mixed lubrication. The AE was found to be precisely dependent on the level of asperity contact and a general relationship between AE and the specific film thickness was determined for these results.

Item Type: Conference or Workshop Item (Paper)
Date Type: Publication
Status: Published
Schools: Engineering
Publisher: Springer
ISBN: 978-3-030-11220-2
ISSN: 2363-6998
Last Modified: 28 Aug 2019 09:19
URI: http://orca.cf.ac.uk/id/eprint/121880

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