Effects of variable pass speed on wear-type corrugation growth

A feedback model for wear-type rail corrugation has been modified to account for vehicle speed variations over successive passages, so that the effect on corrugation amplitude growth can be investigated. The feedback model encapsulates the most critical interactions occurring between the wheel/rail structural dynamics, rolling contact mechanics and rail wear. Using this model, numerical and analytical investigations are performed to quantitatively identify the effect of deliberately changing the speed of successive vehicle passages in a statistically controlled manner. The effect of different initial track profiles on the results is also investigated. The results provide insight into a possible alternative means of retarding wear-type corrugation growth.

[1]  A. Johansson,et al.  Prediction of Rail Corrugation Generated by Three-Dimensional Wheel-Rail Interaction , 2004 .

[2]  Paul A. Meehan,et al.  Effects of wheel passing frequency on wear-type corrugations , 2006 .

[3]  Janos Galambos.  Products of random variables , 2004 .

[4]  David Thompson,et al.  Responses of infinite periodic structures to moving or stationary harmonic loads , 2005 .

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

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

[7]  Steffen Müller,et al.  Erratum to “A linear wheel-rail model to investigate stability and corrugation on straight track” [Wear 243 (1/2) (2000) 122–132]☆ , 2001 .

[8]  D. Thompson,et al.  An investigation into rail corrugation due to micro-slip under multiple wheel/rail interactions , 2005 .

[9]  Paul A. Meehan,et al.  A case study on the effect of speed variation on the growth of wear-type rail corrugation , 2007 .

[10]  J. Santamaria,et al.  A comprehensive track model for the improvement of corrugation models , 2006 .

[11]  Paul A. Meehan,et al.  Prediction of the growth of wear-type rail corrugation , 2005 .

[12]  Klaus Knothe,et al.  Review on rail corrugation studies , 2002 .

[13]  Akira Matsumoto,et al.  Study on the Formation Mechanism of Rail Corrugation on Curved Track , 1996 .

[14]  Thomas F. Edgar,et al.  Process Dynamics and Control , 1989 .

[15]  J. J. Kalker,et al.  A Fast Algorithm for the Simplified Theory of Rolling Contact , 1982 .

[16]  Paul A. Meehan,et al.  A CLOSED FORM ANALYTICAL SOLUTION FOR A SIMPLIFIED WEAR- TYPE RAIL CORRUGATION MODEL , 2004 .

[17]  Steffen Műller,et al.  A linear wheel–rail model to investigate stability and corrugation on straight track , 2000 .

[18]  Xuesong Jin,et al.  Effect of passenger car curving on rail corrugation at a curved track , 2006 .

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

[20]  K. L. Johnson,et al.  Wheel-rail dynamics with closely conformal contact Part 1: Dynamic modelling and stability analysis , 1997 .