Effect of Voided Sleepers on Track Structure Dynamics
Journal Title: Science Paper Online - Year 2006, Vol 1, Issue 2
Abstract
Based on the theory of vehicle-track coupling dynamics, the wheel/rail system dynamic responses are carried out through numerical simulation method when a vehicle passing over voided sleepers. The results show that the wheel/rail dynamical interactions increase when a vehicle passing over the voided sleeper, the displacements of voided sleepers and rail increase, rail/sleeper contact forces and sleeper/ballast contact forces at adjacent sleepers increase also. It is found that the dynamic responses of wheel/rail system increase obviously with the number of voided sleepers increasing, and this will speed up the track deterioration process. Influence of vehicle speed on wheel/rail system dynamic responses was investigated.
Authors and Affiliations
Yitao Han, Wanming Zhai , Jianmin Gao
Keywords
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