Scaling Strategy of a New Experimental Rig for Wheel!Rail Contact

A new small–scale test rig developed for rolling contact fatigue (RCF) investigations in wheel–rail material. This paper presents the scaling strategy of the rig based on dimensional analysis and mechanical modelling. The new experimental rig is indeed a spinning frame structure with multiple wheel components over a fixed rail-track ring, capable of simulating continuous wheelrail contact in a laboratory scale. This paper describes the dimensional design of the rig, to derive its overall scaling strategy and to determine the key elements’ specifications. Finite element (FE) modelling is used to simulate the mechanical behavior of the rig with two sample scale factors of 1/5 and 1/7. The results of FE models are compared with the actual railway system to observe the effectiveness of the chosen scales. The mechanical properties of the components and variables of the system are finally determined through the design process.

[1]  A. H. Wickens,et al.  The Application of Roller Rigs to Railway Vehicle Dynamics , 1999 .

[2]  Xuesong Jin,et al.  Three-dimensional elastic–plastic stress analysis of wheel–rail rolling contact , 2011 .

[3]  Olivier Chiello,et al.  Curve squeal of urban rolling stock—Part 2: Parametric study on a 1/4 scale test rig , 2006 .

[4]  Seok-Jin Kwon,et al.  Numerical stress analysis and rolling contact fatigue of White Etching Layer on rail steel , 2011 .

[5]  J. J. Kalker,et al.  Wheel–rail rolling contact theory , 1990 .

[6]  S. Bogdański,et al.  Numerical stress analysis of rail rolling contact fatigue cracks , 1996 .

[7]  Hi Sung Lee,et al.  Design of Small-Scaled Derailment Simulator for Investigating Bogie Dynamics , 2011 .

[8]  P. Clayton,et al.  Effect of interlamellar spacing on the wear resistance of eutectoid steels under rolling-sliding conditions , 1990 .

[9]  C. Esveld.  Modern railway track , 1989 .

[10]  P. Clayton,et al.  Tribological aspects of wheel-rail contact: a review of recent experimental research , 1996 .

[11]  Coralie Heliot.  SMALL-SCALE TEST METHOD FOR RAILWAY DYNAMICS , 1986 .

[12]  P. Clayton,et al.  Rolling contact fatigue of a rail steel , 1987 .

[13]  Sunil Prabhakar,et al.  Chapter 15 , 2001 .

[14]  Alfred Jaschinski,et al.  Parameter Identification and Experimental Investigations of Unconventional Railway Wheelset Designs on a Scaled Roller Rig , 1996 .

[15]  P. Clayton,et al.  Investigation of rolling contact fatigue in a head-hardened rail , 1991 .

[16]  Siamak Talatahari,et al.  A Robust Finite Element Analysis of the Rail-Wheel Rolling Contact , 2013 .

[17]  Uwe Zerbst,et al.  Introduction to the damage tolerance behaviour of railway rails – a review , 2009 .

[18]  Rolf Dollevoet,et al.  The vertical and the longitudinal dynamic responses of the vehicle–track system to squat-type short wavelength irregularity , 2013 .

[19]  Moritz Gretzschel,et al.  Design of an Active Wheelset on a Scaled Roller Rig , 2004 .

[20]  P. Clayton,et al.  Surface initiated fatigue of pearlitic and bainitic steels under water lubricated rolling/sliding contact , 1996 .

[21]  Zili Li,et al.  The solution of frictional wheel–rail rolling contact with a 3D transient finite element model: Validation and error analysis , 2011 .

[22]  Simon Iwnicki,et al.  Handbook of railway vehicle dynamics , 2006 .

[23]  David Thompson,et al.  Use of a reduced scale model for the study of wheel/rail interaction , 2006 .