ETR – Eisenbahntechnische Rundschau | Ausgabe International/2022
Design and construction of a test rig for wheel-track defects diagnosis in Hefei metro
While developing defect diagnostic systems in urban rapid transit, it is not easy to experimentally obtain all the necessary input datasets under various operating and defect conditions. Alternatively, to solve this difficulty in terms of volume, variety, and velocity of datasets, a test rig is being designed and constructed using additive manufacturing while maintaining original structural characteristics in downscaling. Prior knowledge obtained from its physical and digital twins is expected to accelerate the actual development process of machine learning-based defect diagnostic algorithms through knowledge transfer from test rig to reality...