A Conceptual Design of a Self-Centering Centre Plate

Authors: Jose A. Romero-Navarrete, Frank Otremba, Gerardo Hurtado-Hurtado

Abstract:

Turning maneuvers originate higher forces exerted on the rail and the loss of locomotive energy, at a rate that is function of several parameters that influence the magnitude of the developed horizontal wheel-rail forces, including the friction at the centre plate and the bogie´s yaw stiffness. However, such a friction at the contact surfaces of the centre plate is needed to mitigate the hunting phenomenon when the train moves on straight track segments. In this paper, a self-centering centre plate is proposed, consisting of a lubricated centre plate, equipped with a spring- and damper-based self-centering mechanism. Simulation results of the proposed mechanism suggest that the energy performance in turns of a train car equipped with such self-centering centre plate is comparatively better, as the peak friction forces linked to the dry friction at the contact surfaces of current centre plate designs, are avoided. The assessment of the hunting performance of the proposed device in straight track segments is proposed as the continuation of this work.

Keywords: Bogie´s yaw stiffness, bogie´s yaw friction, centre plate, self-centering mechanism, turning.

References:

[1] Grassie, S.L. (2014) Traction, curving and Surface damage or rails, Part 2: Rail damage, Proc. IMechE. Part F: J Rail and Rapid Transit 229(3): 330-339.
[2] J. N. Varandas, P. Hölscher, M. AG Silva, "Settlement of ballasted track under traffic loading: Application to transition zones", Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit 228: 242-259, 2014.
[3] NTSB, "Derailment of Canadian National Freight Train M33371 and Subsequent Release of Hazardous Materials in Tamaroa, Illinois February 9, 2003", Railroad accident report NTSB/RAR-05/01, NTSB, Washington, D.C., 2005.
[4] Hosseini, S.D., and Verma, M. (2017) A value-at-risk (VAR) approach to routing rail hazmat shipments, Transportation Research Part D 54: 191-211.
[5] Zakar, F. and Mueller, E. (2016) Investigation of a Columbus, Ohio train derailment caused by fractured rail, Case studies in Engineering Failure Analysis 7: 41-49.
[6] Liu, X., Saat, M.R., Barkan, Ch. P.L. (2017) Freight-train derailment rates for railroad safety and risk analysis, Accident Analysis and Prevention 98:1-9.
[7] Magel, E., Mutton, P., Ekberg, A., and Kapoor, A. (2016) Rolling contact fatigue, wear and broken rail derailments, Wear 366-367: 249-257.
[8] Wang, W.J., Guo, J., Liu, Q.Y., Zhu, M.H., and Zhou, Z.R. (2009) Study on relationship between oblique fatigue crack and rail wear in curve track and prevention, Wear 267: 540-544.
[9] Schöne, D., Bork, C.-P. (2010) Fatigue investigations of damaged railway rails of UIC 60 profile, Proceedings, 18th European Conference on Fracture: Fracture of Materials and Structures from Micro to Macro Scale, 8p.
[10] Olshevskiy, A., Kim, Ch-W., Yang, H-I, Olshevskiy, A., Wear simulation for the centre plate arrangement of a freight car. Vehicle System Dynamics 53(6), 856-876 (2015).
[11] C.E. Tickell, P. Downing, and C.J. Jacobsen, C.J., Rail wheel squeal – some causes and a case study of freight-car wheel squeal reduction, Proceedings of Acoustics 2004, 3-5 November, Gold Cost, Australia. Pp 239-244.
[12] H. Wu and J. Robeda, Effects of bogie centre plate lubrication on vehicle curving and lateral stability, Vehicle System Dynamics Supplement 42 (2004), pp 292-301.
[13] J. A. Romero Navarrete, F. Otremba, A variable friction centre plate. In: Uhl T. (eds) Advances in Mechanism and Machine Science. IFToMM WC 2019. Mechanisms and Machine Science, vol 73. Springer, Cham.
[14] Juvinall, R.C., and Marshek, K.M. (2012) Fundamentals of Machine Component Design, 5th edition, John Wiley and Sons, Inc. N.J. 929 pp.
[15] Aizpun, M., Alonso, A., and Vinolas, J. (2016) A new parameter identification methodology for the bogie rotational resistance test of a rail vehicle. Proc. IMechE Part F: J Rail and Rapid Transit 230(3), 879-890.
[16] Meirovitch, L. (1986) Fundamentals of vibrations. McGraw-Hill, International Edition, 826 pp.