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Vibration energy transmission in high-speed train-track-bridge coupled systems
https://orcid.org/0000-0002-2766-2077
Highlights Vibration energy transmission of high-speed train-track-bridge systems is characterized. Hybrid modelling integrating multi-body dynamics and finite element models is performed. Interactions between the train, track, and bridge as well as track irregularity are considered. A power flow method is utilized to characterize vibration energy transmission. Effects of key variables of ballastless track and bridge on energy transmission are evaluated.
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.
Vibration energy transmission in high-speed train-track-bridge coupled systems
https://orcid.org/0000-0002-2766-2077
Highlights Vibration energy transmission of high-speed train-track-bridge systems is characterized. Hybrid modelling integrating multi-body dynamics and finite element models is performed. Interactions between the train, track, and bridge as well as track irregularity are considered. A power flow method is utilized to characterize vibration energy transmission. Effects of key variables of ballastless track and bridge on energy transmission are evaluated.
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.
Vibration energy transmission in high-speed train-track-bridge coupled systems
https://orcid.org/0000-0002-2766-2077
Highlights Vibration energy transmission of high-speed train-track-bridge systems is characterized. Hybrid modelling integrating multi-body dynamics and finite element models is performed. Interactions between the train, track, and bridge as well as track irregularity are considered. A power flow method is utilized to characterize vibration energy transmission. Effects of key variables of ballastless track and bridge on energy transmission are evaluated.
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.
Vibration energy transmission in high-speed train-track-bridge coupled systems
Gou, Hongye (Autor:in) / Gao, Hao (Autor:in) / Ban, Xinlin (Autor:in) / Meng, Xin (Autor:in) / Bao, Yi (Autor:in)
Engineering Structures ; 297
05.10.2023
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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