Results 21 to 30 of about 2,598 (227)

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

Simulation of rail roughness growth on small radius curves using a non-Hertzian and non-steady wheel–rail contact model [PDF]

open access: yes, 2014
A time-domain model for the prediction of long-term growth of rail roughness (corrugation) on small radius curves is presented. Both low-frequency vehicle dynamics due to curving and high-frequency vehicle–track dynamics excited by short-wavelength rail ...
Nielsen, Jens C. O.   +2 more
core   +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

Modelling rail track deterioration and maintenance: current practices and future needs [PDF]

open access: yes, 1997
As commercialisation and privatisation of railway systems reach the political agendas in a number of countries, including Australia, the separation of infrastructure from operating business dictates that track costs need to be shared on an equitable ...
Ferreira, Luis, Murray, Martin H.
core   +2 more sources

Rail roughness and rolling noise in tramways [PDF]

open access: yes, 2016
Companies which manage railway networks have to cope continually with the problem of operating safety and maintenance intervention issues related to rail surface irregularities. A lot of experience has been gained in recent years in railway applications
Chiacchiari, Laura   +4 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

Rolling-sliding laboratory tests of friction modifiers in dry and wet wheel-rail contacts [PDF]

open access: yes, 2010
Friction management has been carried out extensively in the majority of railway networks in the last few years. A popular practice is the application of friction modifiers to increase the adhesion level in contaminated wheel-rail contacts.
Arias-Cuevas   +24 more
core   +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

Wheel–rail contact: experimental study of the creep forces–creepage relationships [PDF]

open access: yes, 2014
The wheel–rail contact problem plays an important role in the simulation methods used to solve railway dynamics problems. As a consequence, many different mathematical models have been developed to calculate wheel–rail contact forces.
A. Alonso   +5 more
core   +2 more sources

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

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