Climbing up

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With Aufklettern or upgrade the pushing up of a rail technology is in the railway wheel by the friction of the wheel flange of the rail indicated by lateral tracking forces.

For example, when driving through a curved track, the outer rail takes over the guidance of the train, with the flange being pressed against the rail head depending on the curve radius and the speed. If the pressure is too high, the wheel with the flange can climb up and slide outwards over the rail, so that the wheelset no longer experiences any lateral guidance and the train derails. A wheel flange lubrication can reduce this effect.

The raising of the car body of rail vehicles in the event of a collision is also referred to as climbing . Since the relatively stiff underframe of the climbing vehicle hits the less stiff structure of the collision partner and can destroy it, anti-climbing protection is often attached to modern rail vehicles

Individual evidence

1. ^ Encyclopedia of Railways . 2nd Edition. Urban & Schwarzenberg, Berlin / Vienna 1923 ( zeno.org [accessed on December 3, 2018] "... therefore the wheel flanges cannot be mounted (derailed).").
2. ↑ Kiessner Ritscher, Presentation, page 8 (PDF; 5.8 MB)