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P.D. Temple¹, M. Harmon¹, R. Lewis¹, M.C. Burstow² and B. Temple³

¹Centre for Doctoral Training in Integrated Tribology, University of Sheffield, United Kingdom
²Network Rail, Milton Keynes, United Kingdom
³L.B. Foster Rail Technologies (UK) Ltd, Sheffield, United Kingdom

Keywords: wheel rail contact, grease, pick up, lubricant modelling, bulb size.

Summary

Insufficient grease pick up by passenger trains travelling through trackside lubricators is a challenge, which can lead to insufficient lubrication of curves and subsequently higher rail and wheel wear. To investigate the effects of different trackside devices, and the influence of parameters governing grease pick up including lateral wheel displacement and pump durations, a bespoke test rig has been built at the University of Sheffield. The rig uses a scaled wheel, a short section of rail and a modern trackside lubricator setup. Experiments involving different lateral wheel displacements and pumping durations have been carried out as well as modelling of grease bulb sizes. The modelling showed how a grease bulb grows. It also indicated that a worn profile is likely to require greater wheel displacement to cause contact with grease bulbs than a new wheel profile. The experimental results show that an increased pick up of grease is to be expected where using an additional component called a GreaseGuide fitted to a regular grease dispensing unit (GDU) on the rail. The efficiency of grease pick up was investigated and test results exploring increasing pump durations indicated a relationship between pick up and bulb size.

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Front Page Browse CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Proceedings ISSN 1759-3433 CCP: 110 PROCEEDINGS OF THE THIRD INTERNATIONAL CONFERENCE ON RAILWAY TECHNOLOGY: RESEARCH, DEVELOPMENT AND MAINTENANCE Edited by: J. Pombo Paper 147 Optimisation of Grease Application to Railway Tracks P.D. Temple¹, M. Harmon¹, R. Lewis¹, M.C. Burstow² and B. Temple³ ¹Centre for Doctoral Training in Integrated Tribology, University of Sheffield, United Kingdom ²Network Rail, Milton Keynes, United Kingdom ³L.B. Foster Rail Technologies (UK) Ltd, Sheffield, United Kingdom doi:10.4203/ccp.110.147 purchase the full-text of this paper Full Bibliographic Reference for this paper P.D. Temple, M. Harmon, R. Lewis, M.C. Burstow, B. Temple, "Optimisation of Grease Application to Railway Tracks", in J. Pombo, (Editor), "Proceedings of the Third International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Stirlingshire, UK, Paper 147, 2016. doi:10.4203/ccp.110.147 Keywords: wheel rail contact, grease, pick up, lubricant modelling, bulb size. Summary Insufficient grease pick up by passenger trains travelling through trackside lubricators is a challenge, which can lead to insufficient lubrication of curves and subsequently higher rail and wheel wear. To investigate the effects of different trackside devices, and the influence of parameters governing grease pick up including lateral wheel displacement and pump durations, a bespoke test rig has been built at the University of Sheffield. The rig uses a scaled wheel, a short section of rail and a modern trackside lubricator setup. Experiments involving different lateral wheel displacements and pumping durations have been carried out as well as modelling of grease bulb sizes. The modelling showed how a grease bulb grows. It also indicated that a worn profile is likely to require greater wheel displacement to cause contact with grease bulbs than a new wheel profile. The experimental results show that an increased pick up of grease is to be expected where using an additional component called a GreaseGuide fitted to a regular grease dispensing unit (GDU) on the rail. The efficiency of grease pick up was investigated and test results exploring increasing pump durations indicated a relationship between pick up and bulb size. purchase the full-text of this paper (price £22) go to the previous paper go to the next paper return to the table of contents return to the book description purchase this book (price £85 +P&P)
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