Results 11 to 20 of about 13,628 (207)

Computer Modeling of Interaction Dynamics of the Railway Car Wheelset with Braking Shoes

Механика машин, механизмов и материалов, 2021
The paper considers the problem of keeping cars from rolling away on station railway tracks with a permissible slope of 0–2.5 ‰. The study presents the computer simulation results for the dynamic interaction of wheels with brake shoes installed on rails ...
Alexandr O. Shimanovsky, Marina G. Kuzniatsova, Volha U. Dzemyanchuk   +2 more
doaj   +1 more source

An Improved Feature Pyramid Network and Metric Learning Approach for Rail Surface Defect Detection

Applied Sciences, 2023
When deep learning methods are used to detect rail surface defects, the training accuracy declines due to small defects and an insufficient number of samples.
Zhendong He, Shiju Ge, Yan He, Jie Liu, Xiaoyu An   +4 more
doaj   +1 more source

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

Metals, 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, Yanming Quan, Junjie Wan, Lang Yu   +3 more
doaj   +1 more source

Study of Surface Temperature Distribution for High-Temperature U75V Rail Steel Plates in Rolling Process by Colorimetry Thermometry

Metals, 2022
Surface temperature is a critical operating parameter that influences the phase transition time and rolling quality of U75V rail steel plates in the rolling process.
Dongdong Zhou, Feng Gao, Junjian Wang, Ke Xu   +3 more
doaj   +1 more source

Surface Defect System for Long Product Manufacturing Using Differential Topographic Images

Sensors, 2020
Current industrial products must meet quality requirements defined by international standards. Most commercial surface inspection systems give qualitative detections after a long, cumbersome and very expensive configuration process made by the seller ...
F.J. delaCalle Herrero, Daniel F. García, Rubén Usamentiaga   +2 more
doaj   +1 more source

Development of rail surface roughness continuous measurement trolley using asymmetrical chord method and application for rail corrugation measurement

Nihon Kikai Gakkai ronbunshu, 2019
Rail corrugation is a periodic rail surface roughness that is formed as the rolling stock runs repeatedly on the rail. The rail corrugation occurs in various track alignment and track structures, but the generation mechanism and wavelength determination ...
Hirofumi TANAKA, Kazuhiro KAJIHARA, Atsushi SHIMIZU, Mitsuo ABOSHI   +3 more
doaj   +1 more source

Influence of change in frictional condition of track rail surfaces on interaction forces in the “wheel/rail” contact [PDF]

E3S Web of Conferences, 2021
Determination of frictional condition of the running surface and side surface of the top of rail (lubrication) that ensures the best interaction of the rolling stock wheels and the rail, reduces the force action and thus ensures the track stability and ...
Parakhnenko Inna, Akkerman Sergey, Romanov Andrey, Shalamova Oksana   +3 more
doaj   +1 more source

Parameter influence analysis and optimization of wheel–rail creepage characteristics in high-speed railway curves [PDF]

Railway Sciences
Purpose – To investigate the influence of vehicle operation speed, curve geometry parameters and rail profile parameters on wheel–rail creepage in high-speed railway curves and propose a multi-parameter coordinated optimization strategy to reduce wheel ...
Bolun An, Jiapeng Liu, Guang Yang, Feng shou Liu, Tong Shi, Ming Zhai   +5 more
doaj   +1 more source

Parameters Studies on Surface Initiated Rolling Contact Fatigue of Turnout Rails by Three-Level Unreplicated Saturated Factorial Design

Applied Sciences, 2018
Surface initiated rolling contact fatigue (RCF), mainly characterized by cracks and material stripping, is a common type of damage to turnout rails, which can not only shorten service life of turnout but also lead to poor running safety of vehicle.
Xiaochuan Ma, Ping Wang, Jingmang Xu, Rong Chen   +3 more
doaj   +1 more source

A Method for Damage Detecting of Large Reflector Antennas Wheel-Rail Based on Electromagnetic Ultrasonic Technology

IEEE Access
The azimuth wheel-rail of large reflector antennas is one of the key components, it not only supports the whole weight of the antenna, but also directly affects the antennas’ pointing performance by its surface accuracy.
Cong Jin, You Ban, Shufei Feng
doaj   +1 more source