Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : September 08, 2024 - September 11, 2024
In high-speed railways, the strength of the infrastructure and car bodies is highly dependent on the pressure fluctuations generated by trains passing through tunnels. Numerous experimental studies have been conducted to simulate these pressure fluctuations. Although axisymmetric 1 / 100 scale moving model rigs are useful, a more in-depth investigation of the three-dimensional effects is required to increase train speeds. In this study, a large-scale moving model rig was developed. Six pairs of rotating wheels were used to accelerate the carriage. A 1 / 20 scale train model weighing 14.6 kg weight connected to the carriage was launched at 400 km/h and safely stopped in a breaking box filled with foam beads. The developed model can lead to the design of safer and more durable infrastructure and train car bodies, and more optimized three-dimensional train nose shapes.
