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Wheel/Rail Contact Creep Curve Measurement and Low Speed Wheel Climb Derailment Investigation

Part of the Lecture Notes in Mechanical Engineering book series (LNME)

Abstract

This paper presents wheel/rail (W/R) contact friction coefficients and creep curves measured by using the Rolling Contact Fatigue Simulator (RCFS). Measurements showed W/R contact friction coefficients and slopes of the creep curves during the transition from partial slip to full slip increase with the decrease of contact stresses under dry contact conditions. Even though the friction coefficient is smaller due to water lubrication, it has little effect on the creep curve transition slope. NUCARS® (NUCARS® is a registered trademark of TTCI) turnout simulations showed that friction coefficient variation with wheel loads may have detrimental effect on flange climb derailment for the case of new wheels running on new rails. Measured W/R contact creep curves under different wheel load conditions are recommended for flange climb derailment investigations.

Keywords

  • Wheel climb derailment
  • Friction coefficient
  • Creep curve
  • Lubrication
  • Test rig
  • Modeling

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References

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Acknowledgments

The research described in this paper was funded jointly by the Federal Railroad Administration Research and Development program and the Association of American Railroads Strategic Research Initiatives program. The test rails were provided by EVRAZ North America, Pueblo, CO, USA.

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Correspondence to Xinggao Shu .

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Shu, X., Zeng, Y., Wilson, N., Thompson, R., Tajaddini, A. (2020). Wheel/Rail Contact Creep Curve Measurement and Low Speed Wheel Climb Derailment Investigation. In: Klomp, M., Bruzelius, F., Nielsen, J., Hillemyr, A. (eds) Advances in Dynamics of Vehicles on Roads and Tracks. IAVSD 2019. Lecture Notes in Mechanical Engineering. Springer, Cham. https://doi.org/10.1007/978-3-030-38077-9_77

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  • DOI: https://doi.org/10.1007/978-3-030-38077-9_77

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-030-38076-2

  • Online ISBN: 978-3-030-38077-9

  • eBook Packages: EngineeringEngineering (R0)