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《Journal of Railway Science and Engineering》 2007-01
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Research on the responses of vertical vibration of train-track system due to voided sleepers

XIANG Jun,YANG Hua,HE Dan(School of Civil Engineering and Architecture,Central South University,Changsha 410075,China)  
The settlement of ballast bed which is loose,elastic and plastic structure is caused by repeated traffic loading.Since the amount of settlement is different,the sleepers are always unsupported,even voided.Based on the analysis method of vertical vibration of train-track system,the dynamic responses of the system with one or several voided sleepers were investigated.The calculation results show that when a train passes the voided sleepers the wheel and rail interactions increase,the vertical displacement and vertical acceleration of sleepers increase obviously,and the more sleepers are voided the increase is more obvious;the vertical displacement and vertical acceleration of the sleepers which are well supported adjacent to the voided one will also remarkably increase;that will speeds up the track deterioration rate and even does harm to driving safety.
【Fund】: 国家自然科学基金资助项目(50678176 50078006);; 高等学校博士学科点专项科研基金资助项目(20010533004);; 中南大学教育创新工程项目
【CateGory Index】: U213.3
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【References】
Chinese Journal Full-text Database 1 Hits
1 ZHANG Jian1,WU Changhua1,XIAO Xinbiao2,WEN Zefeng2,JIN Xuesong2(1.State Key Laboratory of Structural Analysis for Industrial Equipment,Dalian University of Technology,Dalian 116024,China;2.State Key Laboratory of Traction Power,Southwest Jiaotong University,Chengdu 610031,China);Effect of Unsupported Sleepers on Sleeper Dynamic Response[J];Journal of Southwest Jiaotong University;2010-02
【Co-references】
Chinese Journal Full-text Database 2 Hits
1 Xiao Xinbiao Jin Xuesong Wen Zefeng (State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu (310031, China);EFFECT OF TRACK SUPPORT FAILURE ON DYNAMIC RESPONSE OF TANGENT TRACK[J];Chinese Journal of Theoretical and Applied Mechanics;2008-01
2 Zhai Wanming;Huang Zhihui Research Institute of Rail Vehicles;Nonlinear Numerical Methods for Train Dynamic Analysis[J];Journal of Southwest Jiaotong University;1991-01
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