Vibration energy transmission in high-speed train-track-bridge coupled systems

Hongye Gou, Hao Gao, Xinlin Ban, Xin Meng, Yi Bao

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

This paper investigates the vibration energy transmission characteristics of high-speed train-track-bridge coupled systems based on a high-speed railway in China. A coupled system composed of a CRH380A high-speed train, CRTS II slab ballastless track, and standard 32-meter girder bridge was analyzed through hybrid simulations that integrated multi-body dynamics and finite element analysis. The hybrid model included the interactions between the train, track, and bridge of the coupled system as well as track irregularity. The vibration energy of the coupled system was quantitatively investigated under various train velocities. The effects of key variables of ballastless track and bridge on energy transmission characteristics were evaluated. The studied variables included fastener stiffness, fastener damping, mortar layer stiffness, bridge cross section, and bridge damages. The results show that these variables have significant effects on vibration energy transmission, suggesting that it is important to consider these variables in the design and operation of high-speed railways.

Original languageEnglish
Article number117019
JournalEngineering Structures
Volume297
DOIs
StatePublished - 15 Dec 2023

Keywords

  • Energy transmission
  • High-speed railway
  • Hybrid simulation
  • Multi-body dynamics
  • Power flow
  • Track irregularity

Fingerprint

Dive into the research topics of 'Vibration energy transmission in high-speed train-track-bridge coupled systems'. Together they form a unique fingerprint.

Cite this