Radiative Heat Transfer Analysis of Railroad Bearings Using a Single Bearing Test Rig for Wayside Thermal Detector Optimization

Testing of tapered-roller bearings for freight railcars is an area of active research at The University of Texas-Pan American (UTPA). Current efforts are aimed at bearing health monitoring utilizing emerging temperature and vibration sensor technologies. UTPA currently possesses two four-bearing test rigs that are used to perform laboratory experiments required to support the ongoing development of rolling stock condition monitoring research projects. Recently two bearing testers were built that allow for vertical, lateral, and impact loading capabilities in a dynamic single railroad bearing configuration. The newest single bearing test rig, built through a University Transportation Center for Railway Safety (UTCRS) funded project, provides a testing environment that more closely simulates the conditions experienced by railroad bearings in field service. The test rig will enable detailed laboratory testing that correlates realistic field service loading with railroad bearing temperature profiles. A better understanding of the correlation between loading conditions, including loads caused by defects, and temperature profiles at the bearing surface allow for greater predictive capabilities using wayside thermal detector data (e.g. data collected by Hot Box Detectors – HBDs). The data and correlations derived from the proposed in-depth thermal analysis will help identify key target areas for hot box detectors and greater understanding about the causes of particular thermal signatures detected. The impact on railway safety will be fewer temperature related failures that could potentially cause catastrophic derailments and fewer bearings pulled that do not pose a significant safety concern.

Language

  • English

Project

  • Status: Active
  • Funding: $89,134
  • Contract Numbers:

    DTRT13-G-UTC59

  • Sponsor Organizations:

    University of Texas Rio Grande Valley

    1201 W. University Dr
    Edinburg, Texas  United States  78539

    Research and Innovative Technology Administration

    University Transportation Centers Program
    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Managing Organizations:

    University of Texas Rio Grande Valley

    1201 W. University Dr
    Edinburg, Texas  United States  78539
  • Performing Organizations:

    University of Texas Rio Grande Valley

    1201 W. University Dr
    Edinburg, Texas  United States  78539
  • Principal Investigators:

    Crown, Stephen

    Tarawneh, Constantine

  • Start Date: 20150101
  • Expected Completion Date: 20170531
  • Actual Completion Date: 0
  • USDOT Program: University Transportation Centers
  • USDOT Program: University Transportation Centers Program

Subject/Index Terms

Filing Info

  • Accession Number: 01601740
  • Record Type: Research project
  • Source Agency: University Transportation Center for Railway Safety
  • Contract Numbers: DTRT13-G-UTC59
  • Files: UTC, RiP
  • Created Date: Jun 8 2016 6:02PM