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Braking capacity of railway wheels ─ state-of-the-art survey

Shahab Teimourimanesh (Institutionen för tillämpad mekanik, Dynamik) ; Roger Lundén (Institutionen för tillämpad mekanik, Dynamik) ; Tore Vernersson (Institutionen för tillämpad mekanik, Dynamik)
Proceedings of the 16th International Wheelset Congress (IWC16) p. 18 pp.. (2010)
[Konferensbidrag, refereegranskat]

An overview of design methods for tread braking systems is given with special focus on the braking capacity of the wheels. Several aspects of the tread braking system, important for the dimensioning of railway wheels, are assessed, such as brake block materials, residual stresses and temperature gradients through wheel rim and wheel disc. The influence of heat partitioning between wheel, brake block and rail on wheel temperatures for different braking cycles is considered. Two examples with numerical results on thermomechanical behaviour of tread braking systems are given regarding the freight and metro applications.

Nyckelord: Braking capacity, railway tread braking, temperatures, thermal loading, wheel damage



Denna post skapades 2010-04-28.
CPL Pubid: 120733