Citation

Tian HQ, Xu P, Liang XF, Liu TH. Zhongguo Tiedao Kexue 2006; 27(6): 64-67.

Affiliation

Key Laboratory for Track Traffic Safety, Central South University, Changsha 410075, China

Copyright

(Copyright © 2006, Zhongguo Tiedao Kexue Yanjiuyuan)

DOI

unavailable

PMID

unavailable

Abstract

With the increase of train speed, the instantaneous pressure pulse of train passing will seriously influence the operational safety and the comfort degree of the passengers. Based on many results of full-scale test and theoretical analysis, train passing was classified into three categories; one train is static and the other is moving, both trains have uniform velocity and un-uniform velocity. The correlation between pressure wave of train passing and the train speed was studied under the abovementioned three conditions, (2) and a series of regressive expressions were obtained. The result shows that the amplitude of the pressure wave of static train is proportional to the square of the speed of the opposing train, and that of uniform velocity is proportional to the square of the speed of the opposing train and the relative speed. The amplitude of the pressure wave of the quicker train is larger than that of the slower one for the train crossing with un-uniform velocity, and the amplitude of the pressure wave with uniform velocity is larger than that of static train.