Numerical Simulation Analysis of Air Pressure Wave in EMU Train

Abstract

Air pressure pulses generated in passing of EMU trains has been made, and the results have been analyzed in details. The measured results have also been compared with the results of numerical simulation. The following conclusions have been drawn from research: Under the condition of the train meeting at the constant velocity of 250 km/h, the maximum magnitude of the air pressure pulses on the EMU car body reaches 1195 Pa, which has no effect on the running safety of the trains travelling on the lines with 4.4 m spacing distance; the measured results conform with numerical simulation, their difference being 5.31%.