On the problem of the dynamical reactions of a rolling wheelset to real track irregularities
On the problem of the dynamical reactions of a rolling wheelset to real track irregularities作者机构:DTU ComputeTechnical University of DenmarkRichard Petersens Plads Building 3242800Kgs.LyngbyDenmark
出 版 物:《Railway Engineering Science》 (铁道工程科学(英文版))
年 卷 期:2023年第31卷第1期
页 面:1-19页
核心收录:
学科分类:08[工学] 0814[工学-土木工程] 0823[工学-交通运输工程] 082301[工学-道路与铁道工程]
主 题:Track monitoring Vehicle dynamical response Inverse problem Numerical analysis Estimate of errors Track irregularity
摘 要:We investigate numerically the dynamical reactions of a moving wheelset model to real measured track *** background is to examine whether the dynamics are suitable as the input to the inverse problem:determine the true track geometry from measured wheelset dynamical *** is known that the method works well for the vertical position of the rails but the computed lateral position is often *** find that the lateral motion of the wheelset often may differ from the track *** cases are investigated closely but the reasons remain *** the wheelset dynamics reflect the larger(4-6 mm)aperiodic track disturbances and single large disturbances quite well,this does not seem to be the case for general smaller or periodic track irregularities or sections behind single large *** resulting dynamics of a wheelset to lateral track irregularities are in general not sufficiently accurate to be used as the basis for a description of the track irregularities.