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Dynamic Model of a Railway Wheelset for Corrugation Problem Analysis

2009; SAGE Publishing; Volume: 40; Issue: 11 Linguagem: Inglês

10.1260/095745609790251579

2048-4062

Paloma Vila, Andrés Rovira Cardete, Juan Fayos, Luis Baeza,

Adhesion, Friction, and Surface Interactions

In the present work a model of flexible shafts is adapted for modelling the railway wheelset. The dynamic properties of the solid are obtained from a solid finite element model of a real wheelset. The model adopts an Eulerian coordinate set for numerical efficiency. Results of the crossed-receptance and mobility functions are presented, where the excitation is the vertical wheel-rail contact force and the displacement (or velocity) is measured in the wheel-rail contact plane. These results let us know that the gyroscopic effect may contribute to define the wavelength-fixing mechanism in some corrugation problems, even if the train speed is low.