Results 21 to 30 of about 1,769,252 (349)

Railway infrastructure maintenance efficiency improvement using deep reinforcement learning integrated with digital twin based on track geometry and component defects

open access: yesScientific Reports, 2023
Railway maintenance is a complex and complicated task in the railway industry due to the number of its components and relationships. Ineffective railway maintenance results in excess cost, defective railway structure and components, longer possession ...
Jessada Sresakoolchai, S. Kaewunruen
semanticscholar   +1 more source

Switch and crossing for single line operation at double track section

open access: yesNihon Kikai Gakkai ronbunshu, 2020
This study aims to develop the switch and crossing for a single line operation at the double track section. First, the authors design and produce the simplified structure of the switch and crossing for passenger trains which can be installed without the ...
Shingo TAMAGAWA   +3 more
doaj   +1 more source

Simple dynamic model of predicting the axle-box acceleration when trains pass through the rupture part of rails

open access: yesNihon Kikai Gakkai ronbunshu, 2021
In this paper, the simple dynamic model for calculation of the axle-box acceleration (ABA) is established for conveniently detecting rail breakage on trains.
Hiroyuki AIZAWA   +2 more
doaj   +1 more source

Intelligent recognition of defects in high‐speed railway slab track with limited dataset

open access: yesComput. Aided Civ. Infrastructure Eng., 2023
During the regular service life of high‐speed railway (HSR), there might be serious defects in the concrete slabs of the infrastructure systems, which may further significantly affect public transportation safety.
Xiaopei Cai   +7 more
semanticscholar   +1 more source

Research on Cumulative Deformation Characteristics of Subgrade Filling under Cyclic Train Loading

open access: yesShock and Vibration, 2022
The smoothness of high-speed railway is extremely strict. As an important part of the high-speed railway foundation, the subgrade structure has strict deformation requirements.
Junkai Yao   +4 more
doaj   +1 more source

Railway Track Stress–Strain Analysis Using High-Precision Accelerometers

open access: yesApplied Sciences, 2021
We propose a new approach for railway path diagnostics on the basis of track line stress–strain analysis using the data provided by high-precision accelerometers.
A. Avsievich   +4 more
semanticscholar   +1 more source

Monitoring Track Transition Zones in Railways [PDF]

open access: yesSensors, 2021
This manuscript presents the first measurement program and data collection on the Dinatrans track transition solution after it was installed in a track section in the north of Spain (Galicia). The Dinatrans solution was created to address the limitations of several track transition solutions.
Sañudo Ortega, Roberto   +7 more
openaire   +4 more sources

A mathematical model of the rail track presented as a bar on elastic and dissipative supports under the influence of moving loads

open access: yesMATEC Web of Conferences, 2017
At present, the most common track model is the one in which rails are presented as bars of infinite length rested on continuous elastic foundation. However, some specialists consider the model to be rather ideal for railways in terms of track and the ...
Darenskiy Alexander   +4 more
doaj   +1 more source

Assessment of optimal tunnel boring machine (TBM) excavation method by analyzing stability of tunnels in squeezing rock conditions (Case Study: Chamshir Tunnel) [PDF]

open access: yesInternational Journal of Railway Research, 2023
The implementation of infrastructure projects, such as tunnels, in the transportation industry is always considered one of the most expensive projects for the development of countries.
Navid Sabet   +3 more
doaj  

Recent studies on railway-track substructure at TTCI

open access: yesTransportation Safety and Environment, 2021
Railway-track substructure is the foundation of the railway-track infrastructure and consists of four major components: ballast, sub-ballast, subgrade and drainage.
Dingqing Li, S. Wilk
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy