Structural Health Monitoring of Railroad Wheels Using Wheel Impact Load Detectors |
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Authors: | Brant Stratman Yongming Liu Sankaran Mahadevan |
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Affiliation: | (1) Vanderbilt University, Nashville, TN 37235, USA |
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Abstract: | This paper proposes two quantitative criteria for removing railroad wheels from service, based on real-time structural health
monitoring trends that are developed using data collected from trains while in service. The data is collected using wheel
impact load detectors (WILDs). These impact load trends are able to distinguish wheels with a high probability of failure
from high-impact wheels with a low probability of failure. The trends indicate the critical wheels that actually need to be
removed, while at the same time allowing wheels that aren’t critical to remain in service. As a result, the safety of the
railroad will be much improved by being able to identify and remove wheels that have high likelihood of causing catastrophic
failures. |
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Keywords: | Catastrophic failure Crack growth rate Data interpretation Failure analysis Nondestructive testing Structural health monitoring |
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