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The modernization of the rolling stock of the Paris metro and line B of the RER has led the infrastructure manager to attempt to predict the evolution of maintenance costs, with the help of MBS simulation (available at the tender phase). This approach relies on the correlation of corrective maintenance costs with the contact forces calculated by MBS over a known network. Ten parameters damaging function is defined consistent with steel fatigue evaluation method. Those parameters are adjusted by optimizing the correlation coefficient between the damaging function and the associated maintenance cost. In other words, the maintenance costs are modelled as a function of wheel-rail contact forces along the track. The method appears to work on an overloaded section of track, at least for the rail renewal maintenance activity. Tamping and reprofiling maintenance activity forecast produce mixed results. It is proposed to extend this method to the least loaded section of track as metro lines.

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An Attempt for Quantifying Train Effect on Track Rolling Stock Rating Based on MBS Simulation and Maintenance Data

  • 会议论文

  • 发表日期：

    2025年

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  • Xavier Quost,
  • Alfonso Panunzio,
  • Pierre Boutet,
  • Samuel Simon

摘要

The modernization of the rolling stock of the Paris metro and line B of the RER has led the infrastructure manager to attempt to predict the evolution of maintenance costs, with the help of MBS simulation (available at the tender phase). This approach relies on the correlation of corrective maintenance costs with the contact forces calculated by MBS over a known network. Ten parameters damaging function is defined consistent with steel fatigue evaluation method. Those parameters are adjusted by optimizing the correlation coefficient between the damaging function and the associated maintenance cost. In other words, the maintenance costs are modelled as a function of wheel-rail contact forces along the track. The method appears to work on an overloaded section of track, at least for the rail renewal maintenance activity. Tamping and reprofiling maintenance activity forecast produce mixed results. It is proposed to extend this method to the least loaded section of track as metro lines.