论文信息 - Behaviour of the Normal Contact Force Under Multiple Wheel/Rail Interaction

Behaviour of the Normal Contact Force Under Multiple Wheel/Rail Interaction

The wheel/rail contact forces are calculated in the frequency domain using a track model with multiple wheels on the rail. The effects of the wave reflections between the wheels on the contact force are studied. Different pad stiffnesses are used in the calculations to investigate the influence on the contact force. It is shown that the contact force can have up to four main peaks in the frequency region 550–1200?Hz due to the wave reflections between the wheels, so that the wavelengths of short pitch corrugation can be expected to be associated with multiple frequencies. As a conclusion, it is recommended that in a model for predicting short pitch corrugation the effects of multiple wheel/rail interactions need to be included.

T. X. Wu | David Thompson

[1] J. B. Neilsen. EVOLUTION OF RAIL CORRUGATION PREDICTED WITH A NON-LINEAR WEAR MODEL , 1999 .

[2] S. Muller. A LINEAR WHEEL–TRACK MODEL TO PREDICT INSTABILITY AND SHORT PITCH CORRUGATION , 1999 .

[3] A. Igeland,et al. Railhead Corrugation Growth Explained by Dynamic Interaction between Track and Bogie Wheelsets , 1996 .

[4] S. L. Grassie,et al. Periodic microslip between a rolling wheel and a corrugated rail , 1985 .

[5] K. Knothe,et al. An extended linear model for the prediction of short pitch corrugation , 1996 .

[6] K. L. Johnson,et al. The Dynamic Response of Railway Track to High Frequency Vertical Excitation , 1982 .

[7] T. X. Wu,et al. VIBRATION ANALYSIS OF RAILWAY TRACK WITH MULTIPLE WHEELS ON THE RAIL , 2001 .

[8] J Kalousek,et al. An Investigation of Short Pitch Wheel and Rail Corrugations on the Vancouver Mass Transit System , 1992 .

[9] Heike Ilias,et al. Rail head corrugation growth predictions based on non-linear high frequency vehicle/track interaction , 1997 .

[10] Jens C. O. Nielsen,et al. VERTICAL DYNAMIC INTERACTION BETWEEN TRAIN AND TRACK INFLUENCE OF WHEEL AND TRACK IMPERFECTIONS , 1995 .

[11] Klaus Knothe,et al. The formation of wear patterns on rail tread , 1991 .

[12] K Manabe. A hypothesis on a wavelength fixing mechanism of rail corrugation , 2000 .