Influence of the finite element type of the sleeper on vehicle-track interaction: a numerical study. Issue 10 (3rd October 2021)

• Record Type: Journal Article
• Authors: Xu, Lei; Lu, Tao
• Is Part Of: Vehicle system dynamics. Volume 59:Issue 10(2021)
• Page Start: 1533
• Page End: 1556
• Publication Date: 2021-10-03
• Subjects: Vehicle-track interaction -- sleeper finite element -- frequency response function; Motor vehicles -- Dynamics -- Periodicals; Electronic journals; 629.231
• DOI: 10.1080/00423114.2020.1769847
• Languages: English
• ISSNs: 0042-3114

Abstract

Abstract : In the framework of vehicle-track interaction, this work puts an emphasis on clarifying the influence of sleeper finite element types on system dynamic responses. Three sleeper element types, namely the rigid-body, extensible Euler-Bernoulli beam and solid element are used respectively in the track system modelling with detail mathematical formulations presented. The rails are modelled as Timoshenko beams. The ballasted track system is subject to a moving vehicle with coupled wheel-rail interactions. From aspects of both frequency- and time- domain analysis in the numerical study, the effectiveness of this model has been validated. The influences of the sleeper finite element type, the sleeper support stiffness and damping coefficient on the system responses have been investigated.