Dynamic Characteristics of High-Speed Train in Emergency Brake Condition

초록

In emergency brake condition, a railway vehicle must secure safety and stability due to massive transportation, and it must secure good performances. The dynamic characteristics of a train are composed of the traveling stability, safety and the ride comfort. Generally, the dynamic characteristic of the railway vehicle is analyzed by simulation analysis methods and test estimation methods. Currently, the most of commercial dynamic analysis programs are able to interpret in constant speed condition, and an analysis for torque control is confirmed by a test estimation method only. The dynamics analysis results of a train by commercial programs show different results comparing to actual test data and they have lack of reliability. Because there is not considered all various external circumstance enough. To solve the problem, the various actual operational conditions have been applied such as the rail irregularities, the gradients of and the resistance to motion. In this paper, the dynamic characteristic for the Korea High Speed Train (HSR350x) using the simulation analysis method is accomplished by considering various external circumstances. The verification of the reliability for the model is performed by comparing between the analysis results and the test results.