Details
| Original language | English |
|---|---|
| Article number | 2541010 |
| Number of pages | 33 |
| Journal | International Journal of Structural Stability and Dynamics |
| Early online date | 7 Dec 2024 |
| Publication status | E-pub ahead of print - 7 Dec 2024 |
Abstract
The vibration behavior of the maglev train-bridge system has consistently been a primary concern in developing low-to-medium-speed maglev transportation. In this study, based on the planned maglev train crossing the Xiangjiang River Bridge, the total vibration potential energy of the maglev train is extracted using a mathematical method. Following the principle of minimum total dynamic potential energy in elastic systems and the "set-in-right-position"rule, the equations of motion for the maglev train-bridge coupled system are established. The analytical framework and solution process of the coupling equation are developed using the pseudo-excitation method and evolutionary spectrum theory. The dynamic responses of the long-span continuous girder bridge, subjected to moving maglev trains, are analyzed through a Fortran program. The natural frequency and dynamic coefficient of the bridge structure are calculated, and the dynamic response parameters are obtained. Finally, the vibration comfort of the bridge is evaluated using the Diekemann and Sperling indices. The results indicate that the bridge vibration is within acceptable limits, demonstrating that the analyzed dynamic response parameters can serve as reliable references for the construction and design of magnetically suspended long-span continuous girder bridges, both in daily operation and management.
Keywords
- explicit equations of motion, maglev train-bridge coupled system, Magnetic suspended long-span bridges, pseudo excitation method, vibration comfort
ASJC Scopus subject areas
- Engineering(all)
- Civil and Structural Engineering
- Engineering(all)
- Building and Construction
- Engineering(all)
- Aerospace Engineering
- Engineering(all)
- Ocean Engineering
- Engineering(all)
- Mechanical Engineering
- Mathematics(all)
- Applied Mathematics
Cite this
- Standard
- Harvard
- Apa
- Vancouver
- BibTeX
- RIS
In: International Journal of Structural Stability and Dynamics, 07.12.2024.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Dynamic Response Analysis of Vehicle-Bridge Coupled Systems of Low-to-Medium-Speed Maglev Long-Span Bridges
AU - An, Lipeng
AU - Li, Wenwu
AU - Yuan, Peng
AU - Li, Dejian
AU - Chen, Peng
AU - Cao, Lihong
N1 - Publisher Copyright: © 2025 World Scientific Publishing Company.
PY - 2024/12/7
Y1 - 2024/12/7
N2 - The vibration behavior of the maglev train-bridge system has consistently been a primary concern in developing low-to-medium-speed maglev transportation. In this study, based on the planned maglev train crossing the Xiangjiang River Bridge, the total vibration potential energy of the maglev train is extracted using a mathematical method. Following the principle of minimum total dynamic potential energy in elastic systems and the "set-in-right-position"rule, the equations of motion for the maglev train-bridge coupled system are established. The analytical framework and solution process of the coupling equation are developed using the pseudo-excitation method and evolutionary spectrum theory. The dynamic responses of the long-span continuous girder bridge, subjected to moving maglev trains, are analyzed through a Fortran program. The natural frequency and dynamic coefficient of the bridge structure are calculated, and the dynamic response parameters are obtained. Finally, the vibration comfort of the bridge is evaluated using the Diekemann and Sperling indices. The results indicate that the bridge vibration is within acceptable limits, demonstrating that the analyzed dynamic response parameters can serve as reliable references for the construction and design of magnetically suspended long-span continuous girder bridges, both in daily operation and management.
AB - The vibration behavior of the maglev train-bridge system has consistently been a primary concern in developing low-to-medium-speed maglev transportation. In this study, based on the planned maglev train crossing the Xiangjiang River Bridge, the total vibration potential energy of the maglev train is extracted using a mathematical method. Following the principle of minimum total dynamic potential energy in elastic systems and the "set-in-right-position"rule, the equations of motion for the maglev train-bridge coupled system are established. The analytical framework and solution process of the coupling equation are developed using the pseudo-excitation method and evolutionary spectrum theory. The dynamic responses of the long-span continuous girder bridge, subjected to moving maglev trains, are analyzed through a Fortran program. The natural frequency and dynamic coefficient of the bridge structure are calculated, and the dynamic response parameters are obtained. Finally, the vibration comfort of the bridge is evaluated using the Diekemann and Sperling indices. The results indicate that the bridge vibration is within acceptable limits, demonstrating that the analyzed dynamic response parameters can serve as reliable references for the construction and design of magnetically suspended long-span continuous girder bridges, both in daily operation and management.
KW - explicit equations of motion
KW - maglev train-bridge coupled system
KW - Magnetic suspended long-span bridges
KW - pseudo excitation method
KW - vibration comfort
UR - http://www.scopus.com/inward/record.url?scp=85211721313&partnerID=8YFLogxK
U2 - 10.1142/S021945542541010X
DO - 10.1142/S021945542541010X
M3 - Article
AN - SCOPUS:85211721313
JO - International Journal of Structural Stability and Dynamics
JF - International Journal of Structural Stability and Dynamics
SN - 0219-4554
M1 - 2541010
ER -