Zili LiAlfredo NúñezRolf Dollevoet
Wear and RCF
Computers & Structures
axle box acceleration, dynamic simulations, finite element method, railway track inspection, squats
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Squats are associated with high frequency vibrations of the wheel–rail system and can be registered using axle box acceleration (ABA) measurements. In this paper a three-dimensional finite-element (FE) model is proposed to capture the dynamic features of the ABA related to squats in the high frequency range. The FE model is validated relying on a set of real-life ABA measurements at two characteristic rail surface defects (light and severe squats), located in a section of the railway network in Assen. The Netherlands. The FE model managed to properly capture the dynamic features in the range of frequencies up to 2000 Hz.