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A dynamic model of ballasted rail track with bituminous sub-ballast layer [PDF]
Procedia - Social and Behavioral Sciences, 2012 The bituminous sub-ballast layer within the ballasted rail track allows some mechanical and environmental advantages. An analytical model of a ballasted rail track with sub-ballast layer has been proposed by considering the rail as viscous-elastic ...
Di Liberto, CM +3 more
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Ballasted Track Status Evaluation Based on Apparent Track Stiffness Index [PDF]
Applied Sciences, 2020 Currently, maintenance work for ballasted track is performed based on the Track Quality Index (TQI) without a fundamental cause investigation for track irregularity.
Bongsik Park +2 more
doaj +2 more sources
Sleeper end resistance of ballasted railway tracks [PDF]
Journal of Geotechnical and Geoenvironmental Engineering, 2014 This paper describes model tests used to investigate how ballast shoulder width and height contribute to a railway sleeper’s resistance to lateral movement for a range of shoulder widths and heights.
Bhandari, A.R., Le Pen, L., Powrie, W.
core +4 more sources
Modelling options for ballast track dynamics [PDF]
24th International Conference on Sound and Vibration 2017, London CallingAccurate modelling of railway ballasted track dynamics is an important issue for a variety of applications such as the assessment of wheel/rail contact force and critical speed of the vehicle.
Bezin, Yann +3 more
core +3 more sources
Vibrations induced by HST passage on ballast and non-ballast tracks [PDF]
Soil Dynamics and Earthquake Engineering, 2010 Soil Dynamics and Earthquake Engineering, Sept. 2010 - Special Issue in honour of Prof. Anestis Veletsos. PostprintThe use of ballastless slab track is significantly increasing in HST line technology.
Domínguez Abascal, José +2 more
core +5 more sources
Thermal buckling of ballasted tangent track [PDF]
Advances in Mechanical Engineering, 2020 Euler type analysis usually used for compression members in structural engineering does not work for railroad track. Euler type analytical formulas for horizontal and vertical buckling endorsed in a recent literature is reviewed to demonstrate its ...
Nazmul Hasan
doaj +2 more sources
DEM Analysis of Track Ballast for Track Ballast–Wheel Interaction Simulation [PDF]
Applied Sciences, 2020 This study aims to suggest a rational analysis method for a track ballast–wheel interaction that could be further developed to model the interaction in a train-derailment event, based on the discrete-element method (DEM). Track ballast is filled with gravel to form the trackbed.
Nam-Hyoung Lim +3 more
openaire +2 more sources
Wheel Flats in the Dynamic Behavior of Ballasted and Slab Railway Tracks
Applied Sciences, 2021 Wheel flats induce high-impact loads with relevance for the safety of the vehicle in operation as they can contribute to broken axles, hot axle boxes, and damaged rolling bearings and wheels. The high loads also induce damage in the track components such
Cecilia Vale
doaj +1 more source
Study on Representative Parameters of Reverse Engineering for Maintenance of Ballasted Tracks
Applied Sciences, 2022 Reverse engineering (RE) is a technology used to create three-dimensional (3D) models by scanning structures and can be used to examine the current condition of structures.
Suyeul Park, Seok Kim, Heechang Seo
doaj +1 more source
Study on Vertical Dynamic Characteristics of Composite Sleeper Ballasted Track in Tunnels [PDF]
MATEC Web of Conferences, 2019 In order to study the vertical dynamic characteristics of the composite sleeper ballasted track in tunnels, this paper establishes a dynamic model based on the finite element method, and compares the dynamic response of vehicle, wheel and rail systems ...
ZHAO Zhenhang +3 more
doaj +1 more source