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Mechanical Engineering

2019

Series

University of Texas Rio Grande Valley

HBD accuracy and efficacy

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An Investigation Into Wayside Hot-Box Detector Efficacy And Optimization, Constantine Tarawneh, James Aranda, Veronica Hernandez, Stephen Crown, Joseph Montalvo Jun 2019

An Investigation Into Wayside Hot-Box Detector Efficacy And Optimization, Constantine Tarawneh, James Aranda, Veronica Hernandez, Stephen Crown, Joseph Montalvo

Mechanical Engineering Faculty Publications and Presentations

Wayside hot-box detectors (HBDs) are devices used to assess the health of railcar components including bearings, axles, and brakes by monitoring their temperatures. HBDs use infrared (IR) sensors to record the temperatures of railroad bearings. Bearings that trigger an alarm or exhibit warm trending are removed and sent for inspection. In many cases, no discernable defects were found in the flagged bearings. Motivated by this finding, an investigation was conducted which included performing a controlled field test as well as exhaustive laboratory testing utilizing an HBD simulator. Data acquired from field and laboratory testing was used to evaluate the accuracy ...