基于Matlab-Midas的车辆-大跨度连续刚构桥竖向振动特性

doi:10.3969/j.cnki.jdxb.2016.01.013

journal6 ›› 2016, Vol. 37 ›› Issue (1): 54-59.DOI: 10.3969/j.cnki.jdxb.2016.01.013

基于Matlab-Midas的车辆-大跨度连续刚构桥竖向振动特性

戴可以，陈锐林，陈欢，任海龙，陆亚平

（湘潭大学土木工程与力学学院，湖南湘潭 411105）

出版日期:2016-01-25 发布日期:2016-01-21
作者简介:戴可以（1990—），男，湘潭大学土木工程与力学学院硕士研究生，主要从事桥梁结构设计理论与车桥耦合振动分析研究.
基金资助:
教育部高等学校博士学科点专项科研基金资助项目(20104301120004);教育部科学技术重点资助项目(211127);湖南省教育厅优秀青年资助项目(10B105)

Study of Vertical Vibration of Vehicles-Long-Span Continuous Rigid Frame Bridge Based on Matlab-Midas

DAI Ke-Yi, CHEN Rui-Lin, CHEN Huan, REN Hai-Long, LU Ya-Ping

(College of Civil Engineering and Mechanics，Xiangtan University，Xiangtan 411105，Hunan China)

Online:2016-01-25 Published:2016-01-21

摘要/Abstract

摘要：为了研究车辆-大跨度连续刚构桥竖向振动特性，根据蠕滑理论并结合Matlab软件快速求出轮轨力，将模拟的轮轨力输入到用Midas建立的桥梁有限元分析模型中，求解出桥梁的竖向振动响应.仿真结果表明，采用于Matlab-Midas模型求解车桥系统竖向振动特性的方法具有较高的可行性和便捷性.以某大跨度连续刚构桥为例，选取和谐号CRH1，CRH2，CRH3，CH4型电力动车组，分析了4种不同型号电力动力车组的竖向动力响应，结果显示CRH4型的竖向位移动力响应大于其他3种类型，但是4种车型总的变化趋势一致.

关键词： 车桥耦合振动, 轮轨力, 竖向振动, 竖向扰度, 动力响应

Abstract: To study the characteristics of vertical vibration of vehicles-long-span continuous rigid frame bridge，the solution of wheel-track force was automatically figured out based on creep theory in combination with Matlab program.The simulative wheel rail force was then input into the finite element analysis model of bridge to get the vertical vibration of the bridge.The simulation results show that the Mablab-Midas model solution of vertical vibration response of bridge is highly feasible and convenient.Taking a certain large continuous rigid frame bridge as an example,the vertical dynamic responses from the electric motor trains of CRH1,CRH2,CRH3,CH4 are analyzed respectively.Results show that the type CRH4 vertical displacement of the dynamic response is greater than the other three types, but general trend of change on four kinds of models is consistent.

Key words: vehicle-bridge coupled vibration, wheel-track force, vertical vibration, vertical immunity, dynamic response

戴可以, 陈锐林, 陈欢, 任海龙, 陆亚平. 基于Matlab-Midas的车辆-大跨度连续刚构桥竖向振动特性[J]. journal6, 2016, 37(1): 54-59.

DAI Ke-Yi, CHEN Rui-Lin, CHEN Huan, REN Hai-Long, LU Ya-Ping. Study of Vertical Vibration of Vehicles-Long-Span Continuous Rigid Frame Bridge Based on Matlab-Midas[J]. journal6, 2016, 37(1): 54-59.

基于Matlab-Midas的车辆-大跨度连续刚构桥竖向振动特性

Study of Vertical Vibration of Vehicles-Long-Span Continuous Rigid Frame Bridge Based on Matlab-Midas

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