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The onboard monitoring of the wheel-rail forces of heavy-haul freight cars is critical to the derailment evaluation due to in-train stability issues. In this paper, a wheel-rail force indirect measurement method is proposed based on the transfer characteristics of wheel-rail force and strain testing technology. Experimental and simulation results show that this wheel-rail force indirect test method has high identification accuracy, greatly reduces the test cost and the method is suitable for long-term safety monitoring of long and heavy load freight train.

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Indirect Wheel-Rail Force Measuring Method for Freight Cars and Derailment Evaluation

  • 会议论文

  • 发表日期：

    2025年

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  • Pingbo Wu,
  • Lai Wei,
  • Shi-feng Xu,
  • Jia Zhang

摘要

The onboard monitoring of the wheel-rail forces of heavy-haul freight cars is critical to the derailment evaluation due to in-train stability issues. In this paper, a wheel-rail force indirect measurement method is proposed based on the transfer characteristics of wheel-rail force and strain testing technology. Experimental and simulation results show that this wheel-rail force indirect test method has high identification accuracy, greatly reduces the test cost and the method is suitable for long-term safety monitoring of long and heavy load freight train.