Wheel Flats in the Dynamic Behavior of Ballasted and Slab Railway Tracks
نویسندگان
چکیده
Wheel flats induce high-impact loads with relevance for the safety of vehicle in operation as they can contribute to broken axles, hot axle boxes, and damaged rolling bearings wheels. The high also damage track components such rails sleepers. Although this subject has been studied numerically experimentally over last few years, wheel flat problem focused on ballasted tracks, there is a need understand phenomena slab tracks. In research, numerical approach was used show effects different geometric configurations dynamic behavior classical continuous track. Several geometries speeds were considered. nonlinear Hertzian contact model because variation interaction load between rail. results evidenced that, same traffic conditions, force higher than one, contrary maximum vertical displacement, which due differences regarding stiffness frequency response. are useful railway managers who wish monitor deterioration under regulatory limits.
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ژورنال
عنوان ژورنال: Applied sciences
سال: 2021
ISSN: ['2076-3417']
DOI: https://doi.org/10.3390/app11157127