Author(s)

Wenjuan Sun, Hongli Yuan

Corresponding Author

Wenjuan Sun

Abstract

The spectrum characteristics of noise energy distribution of high-speed train at different locations are obtained by calculating the percentage of noise energy distribution. The results show that noise ratio in the middle of train body is the largest, followed by the bottom of the train body and the top of the train body is the smallest. The proportion of noise energy distribution of high-speed train at different speeds is compared, analysis shows that the noise energy percentage at high frequencies increases with speed, while the noise energy percentage at low and medium-low frequencies essentially unchanged with speeds. Our work has certain guiding significance to guide the development of noise control technology of high-speed train.

Keywords

High-speed train, radiative noise, noise spectrum