TY  - JOUR
T1  - Finite Element Dynamic Analysis of a High-Speed Train on Ballasted Track
AU - Sisay Abebe, Melaku AU - Qiu, Hongsheng 
JO  - Journal of Engineering and Applied Sciences
VL  - 11
IS  - 3
SP  - 303
EP  - 310
PY  - 2016
DA  - 2001/08/19
SN  - 1816-949x
DO  - jeasci.2016.303.310
UR  - https://makhillpublications.co/view-article.php?doi=jeasci.2016.303.310
KW  - Dynamic analysis
KW  -ballasted railway
KW  -high-speed train
KW  -finite element
KW  -track
AB  - 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.
ER  -