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On the Stability of Narrow Curving Motion of Railway Wheelsets

Meinke P., Blenkle C.

Machine Dynamics Problems

2000

Vol. 24, No. 1

131-136

The quasi-stationary curving behaviour, which is a common concept in wheel/rail interaction theory, must not necessarily be stable. An example is given, which demonstrates, that in narrow curving a bending/torsion coupled vibration occurs at the wheelset. It comes out, that this vibration is a classical nonlinear self-excited unstable vibration with limit-cycle. In real railway systems this described effect creates corrugation at the inner rail of the curving.