Effect of vertical track irregularities on the vibration of railway bogie

The paper delves into the effect of the vertical irregularities of the track upon the vibrations in a bogie of a rail vehicle, based on the results derived from numerical simulations, which are later compared with experimental results. The vertical track irregularities are introduced into the numerical model of the vehicle-track system in the form of a pseudo-stochastic function obtained through an original synthesis method of the vertical alignment, depending on the geometric quality of the track and velocity. The results derived underline the amplification of the bogie vibrations during running on a low quality track, speed-independent. © 2019, Politechnica University of Bucharest. All rights reserved.