Results 11 to 20 of about 94,810 (281)

Degradation - Prediction Models of the Railway Track Quality [PDF]

open access: yesCivil and Environmental Engineering, 2019
During the railway track life, its operational quality is represented by the key information on the extent and method of its degradation, applying indicators which were appropriately selected, surveyed and evaluated within the diagnostic activities.
Šestaková Janka   +2 more
doaj   +2 more sources

A Survey on Track Geometry Degradation Modelling

open access: yes, 2015
Railway transportation is exposed to a higher demand that necessitates the use of trains with higher speed and heavier axle loads. These increase the track geometry degradation rate, which needs a more effective control on geometry degradation.
Iman Soleimanmeigouni   +3 more
core   +2 more sources

Degradation of the State of a Ball Track at the ZP 6600 [PDF]

open access: yesManagement Systems in Production Engineering, 2017
The article deals with the examination of the state of the ball track of the heavy mining machine ZP6600/Z79. It gives results of material exams which were taken on given samples and describes the progress and results of the numerical computation of the ...
Klouda Petr   +4 more
doaj   +4 more sources

Analysis and prediction of tram track degradation

open access: yes, 2018
Transportation is the means to carry people and goods from one place to another, and has been very important in each stage of human civilization. Therefore, engineers have developed the transportation network day-by-day, aiming to provide for people’s ...
Najwa Elkhoury (20056641)
core   +2 more sources

A threshold-regression model for track geometry degradation

open access: yesProceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit, 2018
Track-related failures are a major factor contributing to train derailments in the United States. Therefore, determining the failure time is critical for safety purposes.
Silvia Galván-Núñez, Nii Attoh-Okine
core   +2 more sources

Track geometry degradation and maintenance modelling : A review

open access: yesProceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit, 2018
Increased demand for railway transportation is creating a need for higher train speeds and axle loads. These, in turn,increase the likelihood of track degradation and failures.
Ahmadi, Alireza,   +2 more
core   +2 more sources

Predictive Modelling for Estimation of Railway Track Degradation

open access: yes, 2015
The degradation processes affecting railway track condition depends both on the resistance of the track and on the stresses subjected to it. Regarding the stresses, both their magnitudes and cycles are of importance when considering the degradation ...
Bjarne Bergquist   +3 more
core   +2 more sources

Track batteries degrading in real time [PDF]

open access: yesNature, 2017
Monitor deforming electrodes to speed development of renewable-energy storage, write Liqiang Mai, Mengyu Yan and Yunlong Zhao.
Liqiang, Mai, Mengyu, Yan, Yunlong, Zhao
openaire   +2 more sources

Spatial degradation mapping and component-wise degradation tracking in polymer–fullerene blends [PDF]

open access: yesJ. Mater. Chem. C, 2014
P3HT degrades homogeneously and the degradation rate is reduced by a factor of 3 in the presence of PCBM. Spatial photodegradation maps are obtained by scanning transmission X-ray microscopy near the carbon absorption edge.
Pedersen, Emil Bøje Lind   +6 more
openaire   +1 more source

Prediction of Railway Track Condition for Preventive Maintenance by Using a Data-Driven Approach

open access: yesInfrastructures, 2022
For scheduling track maintenance, infrastructure managers perform inspections to assess the track condition. When the irregularities are higher than the threshold limits, a track has a defect that should be corrected to avoid future failures or traffic ...
Cecília Vale, Maria Lurdes Simões
doaj   +1 more source

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