Results 21 to 30 of about 6,118 (211)

Development of an efficient finite element model for the dynamic analysis of the train-bridge interaction [PDF]

open access: yes, 2010
The design of high-speed railway bridges comprises a set of demands, from safety and serviceability aspects, to new types of equipment and construction solutions.
Azevedo, A., Calcada, R., Neves, Sérgio
core   +1 more source

Separate Track Impact Factor Application Depending on Track Types through Correlative Analysis with Track Support Stiffness

open access: yesInfrastructures, 2020
Track impact factor (TIF) is a coefficient for estimating the increase of train dynamic load and is a major factor for the evaluation of dynamic stability of railway tracks.
Jae-Ik Lee, Kyu-Hwan Oh, Yong-Gul Park
doaj   +1 more source

Analysis of a typical railway turnout sleeper system using grillage beam analogy [PDF]

open access: yes, 2012
A simplified grillage beam analogy was performed to investigate the behaviour of railway turnout sleeper system with a low value of elastic modulus on different support moduli.
Aravinthan, Thiru   +3 more
core   +1 more source

Numerical Analysis of Additional Stresses in Railway Track Elements Due to Subgrade Settlement Using FEM Simulation

open access: yesApplied Sciences, 2021
The prediction of additional stresses in ballasted track due to subgrade deformation is the main objective of the present paper. In this context, a 2D finite element model of ballasted railway track was built using the ANSYS Workbench program.
Ahmed Nabil Ramadan   +3 more
doaj   +1 more source

Fully three-dimensional analysis of high-speed traintracksoil-structure dynamic interaction [PDF]

open access: yes, 2010
In this paper, a general and fully three dimensional multi-body-finite element-boundary element model, formulated in the time domain to predict vibrations due to train passage at the vehicle, the track and the free field, is presented.
Domínguez Abascal, José   +2 more
core   +1 more source

Study on the Applicability of Dynamic Stability Evaluation Criteria by Comparison of Trackside Measurement Results of Different Track Structures

open access: yesApplied Sciences, 2020
Countries such as Korea adopt design codes, evaluation criteria and specifications from standards originating abroad; this leads to a lack of distinction of the separate applications of dynamic stability evaluation parameters between various track ...
Kyuhwan Oh   +3 more
doaj   +1 more source

Vibration assessment of railway viaducts under real traffic using bridge-track models [PDF]

open access: yes, 2006
The main purpose of this work is to evaluate and compare the dynamic response of a ballasted single-span simply supported viaduct using available models for the track system composed by the rails, the sleepers and the ballast.
Rebelo, Carlos   +2 more
core   +1 more source

Study of Problems Related to Laying Ballastless Track in the Turnout of Ballasted Track at High-Speed Railway Stations

open access: yesAdvances in Materials Science and Engineering, 2022
Due to the complex dynamic interactions of the vehicle-track system in the turnout of high-speed railway stations on a ballasted track, the geometric position of the line changes rapidly. In order to improve the stability of the line, the ballasted track
Ma Xue-Ning   +4 more
doaj   +1 more source

Experimental Study on Settlement Behavior of Ballasted Tracks with Polymer Compound-Coated Gravel

open access: yesApplied Sciences, 2022
The ballast used in ballasted railway tracks transmits load from the rails and ties to the subgrade during train travel, and directly affects the overall track support performance and elastic behavior of the ballasted track.
Jung-Youl Choi
doaj   +1 more source

Experimental settlement and dynamic behavior of a portion of ballasted railway track under high speed trains [PDF]

open access: yes, 2008
International audienceThe study of railway tracks under high speed trains is one of the most important researches in the domain of transport. A reduced scale experiment with three sleepers is presented to study the dynamic behavior and the settlement of ...
Al-Shaer, Ali   +4 more
core   +4 more sources

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