TY - JOUR
T1 - Vibration energy transmission in high-speed train-track-bridge coupled systems
AU - Gou, Hongye
AU - Gao, Hao
AU - Ban, Xinlin
AU - Meng, Xin
AU - Bao, Yi
N1 - Publisher Copyright:
© 2023 Elsevier Ltd
PY - 2023/12/15
Y1 - 2023/12/15
N2 - 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.
AB - 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.
KW - Energy transmission
KW - High-speed railway
KW - Hybrid simulation
KW - Multi-body dynamics
KW - Power flow
KW - Track irregularity
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U2 - 10.1016/j.engstruct.2023.117019
DO - 10.1016/j.engstruct.2023.117019
M3 - Article
AN - SCOPUS:85173485163
SN - 0141-0296
VL - 297
JO - Engineering Structures
JF - Engineering Structures
M1 - 117019
ER -