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The study compares the accuracy of contact-based profilometers, namely, MiniProf and non-contact laser scanners for capturing wheel and rail profiles in vehicle-track interaction. While contact-based profilometers provide highly accurate measurements, they require trains to stop. Laser scanners, though less precise and reliable, can continuously gather profiles over a short period. The simulation results showed satisfactory agreement between laser-scanned and MiniProf profiles for the examined Y/Q ratios. Further research on processing techniques for raw laser scanner data could potentially enhance the usability of laser-scanned profiles for more in-depth contact analysis.

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Comparison of Vehicle Dynamics Simulation Results Using Laser and Contact-Based Profilometer Measurements as Inputs

  • 会议论文

  • 发表日期：

    2025年

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  • Yi Wang,
  • David Crosbee,
  • Elliot Rothwell,
  • Kevin Oldknow

摘要

The study compares the accuracy of contact-based profilometers, namely, MiniProf and non-contact laser scanners for capturing wheel and rail profiles in vehicle-track interaction. While contact-based profilometers provide highly accurate measurements, they require trains to stop. Laser scanners, though less precise and reliable, can continuously gather profiles over a short period. The simulation results showed satisfactory agreement between laser-scanned and MiniProf profiles for the examined Y/Q ratios. Further research on processing techniques for raw laser scanner data could potentially enhance the usability of laser-scanned profiles for more in-depth contact analysis.