Results 21 to 30 of about 845 (210)

Generation mechanism and remedy method of rail corrugation at a sharp curved metro track with Vanguard fasteners

open access: yesJournal of Low Frequency Noise, Vibration and Active Control, 2020
In Chinese metro lines, Vanguard fastener system is widely used as vibration damping fastener. However, the rails mounted with this fastener system are deeply affected by rail corrugation.
BW Wu, GX Chen, JZ Lv, Q Zhu, X Kang
doaj   +1 more source

Field measurement and model prediction of rail corrugation [PDF]

open access: yes, 2020
In a field test, three corrugation profiles of rails and their corresponding vibrations were measured, and the wavelengths and frequencies of rail corrugations were obtained.
Ouyang, H   +6 more
core   +1 more source

The Identification and Assessment of Rail Corrugation Based on Computer Vision

open access: yesApplied Sciences, 2019
The identification and assessment of rail corrugation are two of the essential tasks of daily railway inspection to guarantee the safety of train operation and promote the development of an efficient maintenance strategy.
Dehua Wei   +4 more
doaj   +1 more source

A Methodology for Continuous Monitoring of Rail Corrugation on Subway Lines Based on Axlebox Acceleration Measurements

open access: yesApplied Sciences, 2023
Rail corrugation is a degradation phenomenon that manifests as a quasi-periodic irregularity on the running surface of the rail. It is a critical problem for urban railway lines because it induces ground-borne vibrations transmitted to the buildings near
Leonardo Faccini   +5 more
doaj   +1 more source

Nonlinear dynamic responses of locomotive excited by rail corrugation and gear time-varying mesh stiffness

open access: yesTransport, 2022
Rail corrugation is usually generated in modern railway transportations, such as high-speed railway, urban railway, and heavy-haul railway. It is one of the major excitations to the wheel–rail dynamic interaction, which will cause extra vibration and ...
Zaigang Chen   +3 more
doaj   +1 more source

Modeling of high-speed wheel-rail rolling contact on a corrugated rail and corrugation development [PDF]

open access: yesJournal of Zhejiang University Science A, 2014
Short pitch rail corrugations were observed on a recently opened Chinese high-speed line. On the basis of field measurements and observations of corrugations occurred on the high-speed line, a 3D transient rolling contact model is developed using the explicit finite element (FE) method to investigate high-speed vehicle-track interactions in the ...
openaire   +1 more source

Dynamic characteristics and growth curve of rail corrugation at saturation stage

open access: yesNihon Kikai Gakkai ronbunshu, 2021
Rail corrugation, which causes the vibration and the noise, is a phenomenon in which roughness patterns of approximately regular wavelengths are formed on the rail running surface by trains running.
Mitsuo ABOSHI, Hirofumi TANAKA
doaj   +1 more source

Theoretical Simulation and Experimental Investigation of a Rail Damper to Minimize Short-Pitch Rail Corrugation [PDF]

open access: yes, 2017
The Cologne-egg fastening systems applied in metro lines, which can be subjected to rail corrugation, are considered in this paper. To understand the mechanism of the formation and development of rail corrugation, dynamic models of the wheel and the ...
Xi Sheng   +3 more
core   +1 more source

Mechanisms and mitigation of short pitch rail corrugation

open access: yes, 2022
Short pitch corrugation is a (quasi-) periodic rail surface defect with shiny crests and dark valleys. It primarily occurs on tangent tracks or gentle curves with a typical wavelength in the range of 20-80 mm.
Zhang, P., Zhang, P. (author)
core   +1 more source

Influence of rail corrugation on the vertical jumping behavior of high-speed vehicles at 400 km/h on ballastless tracks

open access: yesKSCE Journal of Civil Engineering
This study investigates the impact of rail corrugation on rail jumping behavior in 400 km/h high-speed trains. A vertical vibration model of the high-speed vehicle-CRTS III slab ballastless track was created using multi-body dynamics and finite element ...
Kai Gong   +3 more
doaj   +1 more source

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