Random simulation method of track irregularities and its application in vehicle-track dynamic analysis

• Published in: International journal of rail transportation (Online) Vol. 11; no. 2; pp. 169 - 187
• Main Authors: Song, Li, Liu, Hubing, Xu, Lei, Yu, Zhiwu
• Format: Journal Article
• Language: English
• Published: Abingdon Taylor & Francis 04.03.2023; Taylor & Francis Ltd
• Subjects: Irregularities; Karhunen-Loève expansion; Number theory; number theory method; Power spectral density; Random vibration; Rigid-body dynamics; Rolling contact; Simulation; Statistical analysis; System dynamics; Track interaction models; track irregularity probability model; track irregularity simulation; Vehicle-track interaction; Vibration analysis

Track irregularity holds strong randomicity, evolvability, and large data sets during the long-term operation of a rail line, possessing a significant influence on the dynamic performance of vehicle-track systems. In this work, methods for simulating track random irregularities are developed by comb...