On the problem of the dynamical reactions of a rolling wheelset to real track irregularities

作     者：Hans True Lasse Engbo Christiansen Andreas Lindhardt Plesner Andreas Lønstrup Ammitzbøll Bjørn Jerram Dahl Hans True;Lasse Engbo Christiansen;Andreas Lindhardt Plesner;Andreas L?nstrup Ammitzb?ll;Bj?rn Jerram Dahl

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.