A Dynamic Characteristic Analysis of Continuous Welded Rail Track under Different Longitudinal Stress
The paper presents a dynamic computational model and field test for analyzing the relationship between the rail natural frequencies and the longitudinal temperature stress by means of the finite element method. The essay use the infinite Timoshenko beam as the plane model to simulate continuous welded rail track structure and the rail model by means of the finite element method in order to its unit as a division of space elastomer. The test uses vertical incentive and horizontal incentive to encourage continuous welded rail track structure to get the rail natural frequencies. The measured data and the result of finite element analysis are compared, finds the results are consistent. The paper not only investigates the relationship between the rails dynamic characteristics and the longitudinal stress, but also provides a feasible method for test longitudinal stress of continuous welded rail track.
Continuous welded rail track Dynamic characteristics Longitudinal stress Finite element method
Yan Yun Luo Hu Zhang Yan Liu
Institute of Railway & Urban Rail Transit, Tongji University, 4800 Caoan Road, Shanghai 201804,Peoples Republic of China
国际会议
上海
英文
1134-1137
2011-10-21（万方平台首次上网日期，不代表论文的发表时间）