铁道科学与工程学报Issue(3)：31-36,6.
基于相似原理的磁浮车桥耦合振动研究
Study on coupling vibration of maglev vehicle-bridge based on the similarity theory
摘要
Abstract
Aiming at the study of vertical coupling vibration of maglev vehicle-suspension control-bridge,the maglev vehicle-suspension control-bridge vertical coupling dynamic model was established based on the simi-larity theory.The similar proportion coefficients with respect of the parameters in simulation systems were deter-mined through combining the existing maglev vehicle with bridge parameters.The comparative analysis of vibra-tion frequency and dynamic response between the experimental bridge and the real bridge was accomplished by system simulation.The results show that,based on the similarity theory,the first resonance frequencies are prac-tical same between the experimental bridge and the real bridge.The dynamic responses representing the vehicle runs are also consistent.Due to the weaker flexural rigidity of experimental bridge,the vibration acceleration at the midspan is about four times larger than that in the actual bridge.And the peek of the vibration acceleration occurs when vehicles ingress or egress the bridge.关键词
磁浮列车/相似理论/车桥耦合振动/模型试验Key words
maglev train/similarity theory/vehicle-bridge coupling vibration/model test分类
交通工程引用本文复制引用
梁鑫,罗世辉,马卫华..基于相似原理的磁浮车桥耦合振动研究[J].铁道科学与工程学报,2014,(3):31-36,6.基金项目
国家自然科学基金资助项目（51005190）；教育部新世纪优秀人才支持计划（NCET -11-0712）；四川省科技计划项目（2012GZ0103）；中国博士后基金一等资助项目 （）
