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7. Conclusion
The wheel-rail bearing, the foundation of the railway system, is involved in all its components: rolling stock, infrastructure, energy required for train movement, traffic, operation and safety. Although based on proven technology, its components - in terms of geometry, materials and mechanical architecture - are constantly evolving. The wheel-rail contact allows for an increase in transported loads. With precise knowledge of the force compatible with contact friction, it is possible to use the available grip at its limits. The speed of traffic also depends on this; recent experiments at speeds of over 570 km/h have shown that usable grip is significant and allows traction force to be applied.
The development of guided rolling on tires has enabled a significant increase in transport capacity in urban environments without compromising fuel efficiency.
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Conclusion
Bibliography
Standards and norms
- Technical approval of monoblock wheels – Application document for standard EN 13979-1 - UIC 510-5 OR -
- Towed equipment – Axle spacing - UIC 511 O -
- Passenger transport equipment – Bogies – Running gear - UIC 515 OR -
- Passenger transport equipment – Carrier bogies – Rolling bearings – General provisions applicable to bogie components - UIC 515-1 OR -
- Méthode de détermination de la conicité...
Websites
Manufacturers – Suppliers – Distributors (non-exhaustive list)
ALSTOM Transport http://www.alstom.fr
GHH-VALDUNES Group: production of wheels, axles, wheelsets for railways http://www.ghh-valdunes.com
Régie autonome des Transports...
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