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Rob Caldwell

Implementing an Anti-Shelling Wheel Profile

January 3, 2014 | Filed under: Wheel Maintenance, Wheel/Rail Profile

By Rob Caldwell • October, 2005 Wheel Shelling has presented serious problems on Canadian railroads in recent years, particularly in winter months. Tread shelling on wheels on Quebec Cartier Mining (QCM) railway’s heavy-haul fleet, for example, reached condemnable limits within one year of use, during the early 1990s. In some cases, …

Pre-engineering the Wheel/Rail Interface

October 13, 2013 | Filed under: Friction Management, Rail Maintenance, Wheel/Rail Interaction, Wheel/Rail Profile

By Rob Caldwell • October 2010 The wheel/rail interface is a complex system – one that benefits greatly from careful pre-engineering. There are significant benefits from properly addressing the wheel/rail interface, and serious consequences from allowing the interface to govern itself. While there are examples of both pre- and post-engineering scenarios, there …

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