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The wheel/rail interface is one of the most complex interfaces tribologists have to deal with. It is an open system with constantly varying contact forces and slip. This means that it presents a wide range of behaviours in terms of friction and wear which at their extremes can compromise train safety. It also means that replicating the behaviour in the laboratory and predicting its behaviour is very difficult.
This talk will cover work carried out and ongoing to create small-scale experiments to understand fundamental mechanisms; development of modelling tools and applied solutions to for a range of wheel/rail interface issues. The work is focussed on low adhesion; wear and rolling contact fatigue and rail grinding case studies.
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12:00 - Online lecture programme
07:00 New York
17:30 New Delhi
12:00 GMT Online lecture begins
12:40 GMT Q&A session
13:00 GMT Online lecture ends
Roger Lewis: Professor of Mechanical Engineering, University of Sheffield
Roger Lewis is currently Professor of Mechanical Engineering in the Department of Mechanical Engineering at The University of Sheffield. He is also currently a RAEng/Rail Safety and Standards Board Research Chair in Wheel/Rail Interface Low Adhesion Management. He has been at the University since starting his undergraduate degree in 1992. He has had over 20 years experience of working on a wide range of tribological issues, but now mainly focusses on wheel/rail interface and human tribology research.
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