Results 21 to 30 of about 5,108,447 (194)

Experimental study of fatigue life of wagon wheel of increased hardness when interacting with rail [PDF]

open access: yesОмский научный вестник, 2019
The analysis of the processes occurring during the interaction of the wheel with the rail. Studies of the processes occurring in the interaction of the wheel with the rail by the method of similarity were carried out. The occurrence of contact fatigue
M. I. Biserikan   +2 more
doaj   +1 more source

Spectral Characteristics of Rail Surface by Measuring the Growth of Rail Corrugation

open access: yesApplied Sciences, 2021
Continuous interaction between wheels and rails during train operation results in rail wear and tear. Corrugation of the rail surface is particularly caused by the contact mechanism between train wheel and rail and increases the vibration and dynamic ...
Wootae Jeong
doaj   +1 more source

An initial investigation on the potential applicability of Acoustic Emission to rail track fault detection. [PDF]

open access: yes, 2004
In light of recent accidents in the rail industry, the assessment of the mechanical integrity of rail-track is of vital importance. This encompasses the integrity of the track due to rolling contact fatigue and surface wear. Whilst numerous techniques
Mba, David, Bruzelius, Kristoffer
core   +1 more source

Developing Machine Learning-Based Models for Railway Inspection

open access: yesApplied Sciences, 2020
Smart railway maintenance is crucial to the safety and efficiency of railway operations. Successful deployment of technologies such as condition-based monitoring and predictive maintenance will enable railway companies to conduct proactive maintenance ...
Chunsheng Yang   +3 more
doaj   +1 more source

Optical Rail Surface Crack Detection Method Based on Semantic Segmentation Replacement for Magnetic Particle Inspection

open access: yesSensors, 2022
Railway damage detection is of great significance in ensuring railway safety. The cracks on the rail surface play a key role in studying the formation and development process of rail damage, predicting the occurrence of rail defects, and then improving ...
Lei Kou   +4 more
doaj   +1 more source

A 3D Laser Profiling System for Rail Surface Defect Detection

open access: yesSensors, 2017
Rail surface defects such as the abrasion, scratch and peeling often cause damages to the train wheels and rail bearings. An efficient and accurate detection of rail defects is of vital importance for the safety of railway transportation. In the past few
Zhimin Xiong   +3 more
doaj   +1 more source

Experimental Investigation on the Wear and Damage Characteristics of Machined Wheel/Rail Materials under Dry Rolling-Sliding Condition

open access: yesMetals, 2020
To guarantee the smooth operation of trains, rail grinding and wheel turning are necessary practices to remove surface defects. Surface integrity of machined wheel/rail materials is significant to affect their tribological performance.
Peijie Liu   +3 more
doaj   +1 more source

LASER SCATTEROMETRY FOR DETECTION OF SQUAT DEFECTS IN RAILWAY RAILS [PDF]

open access: yesArchives of Transport, 2015
The paper concerns a defectoscopy of squats occurring on the surface of the rail head. Disadvantages of traditional methods being used in detection of such defects were also presented. Authors proposed a new method based on simplified laser scatterometry
Piotr Lesiak   +2 more
doaj   +1 more source

Peridynamics Modelling of Rail Surface Defects in Urban Railway and Metro Systems

open access: yesProceedings, 2018
Rail squats and studs, which are one of critical rail surface defects, are typically classified as the propagation of any cracks that have grown longitudinally through the subsurface. [...]
Andris Freimanis   +2 more
doaj   +1 more source

Integration of an Ultrasonic Sensor within a Robotic End Effector for Application within Railway Track Flaw Detection

open access: yesApplied Sciences
The rail industry is constantly facing challenges related to safety with regard to the detection of surface cracks and internal defects within rail tracks.
Luke Cilia   +3 more
doaj   +1 more source

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