- Volume 20 Issue 2
DOI QR Code
Correlation Analysis between Dynamic Wheel-Rail Force and Rail Grinding
차륜-레일 상호작용력과 레일연마의 상관관계 분석
- Received : 2016.12.27
- Accepted : 2017.02.27
- Published : 2017.04.30
In this study, the influences of rail surface roughness on dynamic wheel-rail forces currently employed in conventional lines were assessed by performing field measurements according to grinding of rail surface roughness. The influence of the grinding effect was evaluated using a previous empirical prediction model for dynamic wheel-rail forces; model includes first-order derivatives of QI (Quality Index) and vehicle velocity. The theoretical dynamic wheel-rail force determined using the previous prediction equation was analyzed using the QI, which decreased due to rail grinding as determined through field measurements. At a constant track support stiffness, an increase in the QI caused an increase in dynamic wheel-rail forces. Further, it can be inferred that the results of dynamic wheel-rail analysis obtained using the measured data, such as the variation of QI due to rail grinding, can be used to predict the peak dynamic forces. Therefore, it is obvious that the optimum amount of rail grinding can be determined by considering the QI, that was regarding an operation characteristics of the target track (vehicle velocity and wheel load).
Rail surface roughness;Dynamic wheel-rail forces;Quality index of rail surface (QI);Rail grinding;train speed
- The European Standard EN 13231-3 (2006) Part 3 : Acceptance of rail grinding, milling and planning work in track, Railway Applications Track Acceptance of works, EN 1323-3.
- M.J.M.M. Steenbergen, C. Esveld, R.P.B.J. Dollevoet (2005) New Dutch Assessment of Rail Welding Geometry, European Railway Review, 11, pp. 71-79.
- C. Esveld, M.J.M.M. Steenbergen (2005) Force-based Assessment of Weld Geometry, Proceedings of the 8th International Heavy Haul Conference, RiodeJaneiro, Brazil, pp. 1-7.
- M.J.M.M. Steenbergen, C. Esveld (2006) Relation between the Geometry of Rail Welds and the Dynamic Wheel-Rail Response: Numerical Simulations for Measured Weld, Journal of Rail and Rapid Transit, 220, pp. 409-423. https://doi.org/10.1243/0954409JRRT87
- J.Y. Choi (2013) Influence of track support stiffness of ballasted track on dynamic wheel-rail forces. ASCE, Journal of Transportation Engineering, 139, pp. 709-718. https://doi.org/10.1061/(ASCE)TE.1943-5436.0000543
- M.J.M.M. Steenbergen, C. Esveld (2006) Rail weld geometry and assessment concepts, Journal of Rail and Rapid Transit, 220, pp. 257-271. https://doi.org/10.1243/09544097JRRT38
- C. Esveld, M.J.M.M. Steenbergen (2006) Force-based Assessment of Rail Welds, WCRR, Montreal, Canada.
- RAILPROF Manual (2011) Esveld Consulting Services BV, Zaltbommel, The Netherlands.
- Y.G. Park (2013) Development on the Criteria for Maintenance and Periodic Replacement of rail in Conventional Railway (in Korean), Seoul National University of Science and Technology.
- D.Y. Sung, K.S. Chang, Y.G. Park (2012) Analysis for optimal rail grinding amount by rolling contact fatigue test in high speed railway, Journal of the Korean Society for Railway, 15(2), pp. 141-146. https://doi.org/10.7782/JKSR.2012.15.2.141
- D.Y. Sung, D.C. Go, Y.G. Park, S.Y. Kong (2010) Experimental study for establishing rail grinding period in the urban railway, Journal of the Korean Society for Railway, 13(4), pp. 447-454.