Results 101 to 110 of about 1,819 (228)

A Study on the Pantograph Slide Wear Model Based on Energy Dissipation

open access: yesApplied Sciences
During train operations, the contact surface between the pantograph slide and the catenary wire is subjected to mechanical friction and an electrical current, leading to an increase in the wear of the pantograph slide and a reduction in the service life ...
Yiming Dong   +4 more
doaj   +1 more source

Critical Components Selection for a Prognostics and Health Management System Design: an Application to an Overhead Contact System [PDF]

open access: yes, 2016
In recent years, improving quality of rail services by increasing availability, saving energy, and cutting the costs of infrastructure and rolling stock maintenance has become a central concern in the railway industry.
Brahimi, Mehdi   +3 more
core  

Improvement of the Energy Recovery of Traction Electrical Drives using Supercapacitors

open access: yes, 2008
In the paper the possibility of improving the energy recovered during the braking of railway vehicles and reduction of power peaks during accelerating are discussed.
D. Iannuzzi
core   +1 more source

Pneumatic Active Control System for Pantograph-catenary interaction

open access: yes, 2013
Pantograph-catenary interaction is one of the most important items for operation of high speed trains, reliable current collection being the necessary pre-condition to speed up trains. Severe limitations can come from the variability of the contact force acting between the pantograph and the catenary, which can lead to poor current collection or ...
Tieri, Roberto   +4 more
openaire   +1 more source

Modelado con elementos finitos y actualización con ensayos modales experimentales de un cantón de catenaria rígida [PDF]

open access: yes, 2017
La catenaria rígida, comúnmente instalada en metropolitanos subterráneos, presenta ciertas ventajas respecto a otros sistemas convencionales de alimentación eléctrica en el transporte ferroviario, como es la catenaria flexible. La catenaria rígida aún se
Almenara, Luis Fernando   +4 more
core  

Efficiency and cost estimation for a static frequency converter and a rail power conditioner based on an indirect modular multilevel converter in railways applications [PDF]

open access: yes, 2017
This paper presents a comparative study between two different power electronics solutions for electrified railway substations to overcome some drawbacks which could appear on the public grid side.
Afonso, João L.   +5 more
core  

Optimización de la captación de corriente con catenaria rígida [PDF]

open access: yes, 2004
La catenaria rígida presenta algunas características que la hacen especialmente apropiada para su montaje en líneas de metro, si bien el aumento del límite de velocidad de los vehículos destinados a las líneas modernas exige un diseño más eficiente para ...
Paulin, Jenny   +2 more
core  

Definition of a linear equivalent model for a non-linear system with impacts [PDF]

open access: yes, 2012
Modal characteristics of non-linear system are typically studied through response to harmonic excitation and using various definitions of non-linear modes. However, few results are available for systems under broadband excitation.
BALMES, Etienne   +2 more
core   +3 more sources

Research and Simulation of Metro Pantograph-catenary SystemBased on Least Square Support Vector Machine

open access: yes机车电传动, 2016
A model of pantograph-catenary system based on the error correlation was put forward, and the least squares supportvector machine (LSSVM) method was used to study the parameters of the model.
Jiang Wei, Huang Yuping
doaj  

Countermeasures for Abnormal Arcing and Burning of Pantograph-Catenary System in Urban Rail Transit Vehicle Base

open access: yesChengshi guidao jiaotong yanjiu
[Objective] Abnormal arcing and burning of contact wire are commonly observed in urban rail transit vehicle bases, primarily concentrated in pantograph-corresponding areas at train parking lots.
LI Zeyu
doaj   +1 more source

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