Journal of Engineering and Applied Sciences
ISSN: Online 1818-7803ISSN: Print 1816-949x
Abstract
The impact of dynamic loading on ballasted railway track has become an important issue due to increased demand for high-speed freight and public transport and because it leads to progressive deterioration and settlement of railway. In this study, the LS-DYNA computer code is used to conduct finite element calculations for the dynamic analysis of a high-speed train running on ballasted railway track. The rails are modelled as beams of a plastic kinematic material and the ballast and sub-ballast structure are modelled using rectangular prisms of an elastic material. The elastic beams representing the sleepers are placed 0.6 m apart.The load of a high-speed train is applied using a simplified finite element model. The commands RAIL_TRACK and RAIL_TRAIN LS_DYNA are applied to simulate the train’s interaction with the track. The CONTACT_SINGEL_SURFACE and CONTACT_SURAFCE_SURFCE commands which have not been applied in previous research are used to model the contact between connected parts. The results indicate that the LS-DYNA program can be used to model a high-speed train running on ballasted railway track and to calculate stress-strain, deformation and contact forces as well as sliding energy which are crucial for in railway track maintenance and in designing new ballasted railway track.
How to cite this article:
Melaku Sisay Abebe and Hongsheng Qiu. Finite Element Dynamic Analysis of a High-Speed Train on Ballasted Track.
DOI: https://doi.org/10.36478/jeasci.2016.303.310
URL: https://www.makhillpublications.co/view-article/1816-949x/jeasci.2016.303.310