Journal
INTERNATIONAL JOURNAL OF COMPUTATIONAL METHODS
Volume 11, Issue 3, Pages -Publisher
WORLD SCIENTIFIC PUBL CO PTE LTD
DOI: 10.1142/S021987621343007X
Keywords
Moving element method; track transition; wheel-rail interaction; track irregularity
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In this paper, a computational study using the moving element method (MEM) was carried out to investigate the dynamic response of a high-speed train track system. Results obtained using Hertz contact model and linearized Hertz contact model are compared and discussed. The dynamic responses of a train travelling across a uniform foundation and a transition region are also investigated. Parametric study is performed to understand the effect of various factors on the occurrence and patterns of the jumping wheel phenomenon such as the variation of foundation stiffness, travelling speed of the train and the severity of railhead roughness.
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