Dynamic analysis of Indian railway track

Abstract

This paper presents the dynamic response of the Indian railway track. Two track models are considered for the dynamic response in terms of vertical displacement and acceleration at different wheel speeds, keeping the moving point load of constant magnitude. One treats the rail as a beam on viscoelastic foundation and the other assumes it to be on the discrete elastic support system.The governing equation is studied through finite element software package ANSYS 14.0.For the validation of the models results are compared with those available in published literature and the maximum deviation for displacement at the midpoint of rail is found less than 5%. Different wheel speed generates variation in displacement and acceleration on the track. The study can be viewed as the foundation for the comparison of FEA based simulation of rail track to specify its dynamic response useful for safer design of the track layout. © 2017, Institute of Advanced Scientific Research, Inc. All rights reserved.