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Y. Sun¹, M. Xing² and Z. Shi³

¹College of Transportation Science and Engineering, Nanjing Tech University, Nanjing, China
²College of Rail Transit, Wuxi University, Wuxi, China
³Department of Industrial Engineering of Florence (DIEF), University of Florence, Italy

doi:10.4203/ccc.7.9.6

Y. Sun, M. Xing, Z. Shi, "A Wheel Wear Prediction Model Based on the Wheel-Rail Rigid Slip Considering Curve Contact Area", in J. Pombo, (Editor), "Proceedings of the Sixth International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 7, Paper 9.6, 2024, doi:10.4203/ccc.7.9.6

Keywords: railways, wheel wear, wheel-rail rigid slip, non-Hetzian contact, curve contact area, plane contact area.

Abstract

Distribution of the wheel-rail rigid slip is a crucial parameter in predicting wheel wear. A new method based on the curve contact area is proposed to calculate the curve distributed wheel-rail rigid slip and the wheel wear distribution. The wheel wear distributions of Chinese CRH 2 EMU are calculated using the curve contact area, and those calculated using the planar contact area are compared. The simulation results indicate that the wheel-rail rigid slip based on the curve contact area is the same as that based on the plane contact area at the wheel-rail initial contact point, however, it is lower than that based on the plane contact area at other positions. Under the effect of different wheel-rail rigid slip distributions, the predicted wheel wear for the curve contact area achieves a larger depth than that for the plane contact area at the position closer to the flange, in comparison, it achieves a smaller wear depth than that for the plane contact area at the position far from the flange.

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Front Page Browse CCC CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Conferences ISSN 2753-3239 CCC: 7 PROCEEDINGS OF THE SIXTH INTERNATIONAL CONFERENCE ON RAILWAY TECHNOLOGY: RESEARCH, DEVELOPMENT AND MAINTENANCE Edited by: J. Pombo Paper 9.6 A Wheel Wear Prediction Model Based on the Wheel-Rail Rigid Slip Considering Curve Contact Area Y. Sun¹, M. Xing² and Z. Shi³ ¹College of Transportation Science and Engineering, Nanjing Tech University, Nanjing, China ²College of Rail Transit, Wuxi University, Wuxi, China ³Department of Industrial Engineering of Florence (DIEF), University of Florence, Italy doi:10.4203/ccc.7.9.6 Full Bibliographic Reference for this paper Y. Sun, M. Xing, Z. Shi, "A Wheel Wear Prediction Model Based on the Wheel-Rail Rigid Slip Considering Curve Contact Area", in J. Pombo, (Editor), "Proceedings of the Sixth International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 7, Paper 9.6, 2024, doi:10.4203/ccc.7.9.6 Keywords: railways, wheel wear, wheel-rail rigid slip, non-Hetzian contact, curve contact area, plane contact area. Abstract Distribution of the wheel-rail rigid slip is a crucial parameter in predicting wheel wear. A new method based on the curve contact area is proposed to calculate the curve distributed wheel-rail rigid slip and the wheel wear distribution. The wheel wear distributions of Chinese CRH 2 EMU are calculated using the curve contact area, and those calculated using the planar contact area are compared. The simulation results indicate that the wheel-rail rigid slip based on the curve contact area is the same as that based on the plane contact area at the wheel-rail initial contact point, however, it is lower than that based on the plane contact area at other positions. Under the effect of different wheel-rail rigid slip distributions, the predicted wheel wear for the curve contact area achieves a larger depth than that for the plane contact area at the position closer to the flange, in comparison, it achieves a smaller wear depth than that for the plane contact area at the position far from the flange. download the full-text of this paper (PDF, 8 pages, 696 Kb) go to the previous paper go to the next paper return to the table of contents return to the volume description
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