Researchers: Janet Lin
The rolling stock wheel is one of the most important railway subsystems and is essential to service. Its service life can be significantly reduced by failure or damage, as both lead to excessive cost and accelerated deterioration. There are some problems in current practice: 1) re-profiling data are not generally used to review wheel-set maintenance strategies; 2) most existing studies focus on the component level not on the system level, or the system of systems level; 3) although some studies have considered information from the system or system of systems level, results are not used in an integrated way. This means valuable information can be lost, especially because the maintenance context changes at each level. This project aims to address the challenge in prolonging the lifetime of rolling stock wheels by developing what we call an integrated maintenance strategy review and optimization (MSRO) approach.
Figure: Ratio between re-profiling wear rate and natural wear rate