The Open Mechanical Engineering Journal

2014, 8 : 197-200
Published online 2014 September 16. DOI: 10.2174/1874155X01408010197
Publisher ID: TOMEJ-8-197

Relation Between Track Irregularity of Speed-Increased Railway and Dynamic Speed Limits Through Simulation

Wang Zhi-Chen , Song Ying and Wang Jian-Xi
School of Electrical & Information Engineering, Northeast Petroleum University, Daqing. Postcard: 163318, China.

ABSTRACT

Based on the vehicle-track coupled dynamics theory and the corresponding simulation software ADAMS/Rail software package, a vehicle-track coupling system model is established, and the track irregularity is introduced to the coupling system model as an excitation source. Firstly, the dynamic responses of speed-increased railway vehicle and track components due to different types of track irregularity are obtained. Secondly, the sensitive wavelength of different track irregularities in high-speed operation is discussed. Finally, suggestions about the maximum operation speed to meet the standards value of daily maintenance target, comfortable value, emergency repair and speed management target are put forward.

Keywords:

Dynamic speed limits, speed-increased railway, track irregularity, vehicle-track coupled model.