东南大学学报（自然科学版）2026，Vol.56Issue(1)：80-92,13.DOI:10.3969/j.issn.1001-0505.2026.01.009
600 km/h磁浮大跨度连续梁车-桥耦合振动特性及影响因素研究
Study on the vehicle-continuous bridge coupled vibration characteristics and influencing factors of 600 km/h high-speed maglev trains
摘要
Abstract
For the 600 km/h high-speed maglev(HSM)system,the vehicle-bridge coupled vibration character-istics of a long-span continuous bridge and its impact on vehicle operation safety are studied.A coupled model of the HSM train and continuous bridge is established through finite element and multibody dynamics simula-tions.The vehicle-bridge coupling vibration characteristics of three types of long-span bridges under varying section height,stiffness,guideway configuration,and train speed are investigated.The results indicate that the bridge span and section height significantly affect the train's vertical acceleration,bridge vibration re-sponse,and vehicle-bridge coupling effects.As the bridge span increases and the section height decreases,the natural frequency drops,and both the train's vertical acceleration and bridge vibrations increase substantially.Especially under high-speed conditions,long-period excitation may cause vertical resonance of the vehicle body.On the other hand,the stiffness of the guideway also has a significant impact on the overall stiffness of the bridge.Compared with point-supported guideways,continuous guideways help reduce dynamic responses of HSM train.To avoid resonance,it is crucial to control the impact of stiffness on the train's dynamic re-sponse when designing large-span bridges,with attention to the vertical natural frequency design and the avoid-ance of resonance between the excitation frequency and the train's resonance frequency.The research results can provide a theoretical basis for the design and operation of high-speed maglev long-span bridges.关键词
600 km/h高速磁浮/车-桥耦合振动/大跨度连续梁/有限元分析/多体动力学/共振效应/桥梁设计Key words
600 km/h high-speed maglev/vehicle-bridge coupled vibration/large-span continuous bridge/finite element analysis/multibody dynamics/resonance effect/bridge design分类
交通工程引用本文复制引用
王阳,国巍,伍卫凡,颜志华..600 km/h磁浮大跨度连续梁车-桥耦合振动特性及影响因素研究[J].东南大学学报（自然科学版）,2026,56(1):80-92,13.基金项目
"十四五"国家重点研发计划专项资助项目(2023YFB4302500) （2023YFB4302500）
中国国家铁路集团有限公司科技研究开发计划实验室基础研究专项资助项目(L2024G015(T001)) （L2024G015(T001）
中国铁路设计集团有限公司科技开发课题资助项目(2021A240606). （2021A240606）
