Results 1 to 10 of about 28,952 (207)

Pantograph–catenary electrical contact system of high-speed railways: recent progress, challenges, and outlooks

Railway Engineering Science, 2022
As the unique power entrance, the pantograph–catenary electrical contact system maintains the efficiency and reliability of power transmission for the high-speed train.
Guangning Wu, Keliang Dong, Zhilei Xu, Song Xiao, Wenfu Wei, Hua Chen, Jiekang Li, Zhangli Huang, Jingwei Li, Guoqiang Gao, Guozheng Kang, Chuanjun Tu, Xingyi Huang   +12 more
exaly   +2 more sources

A spatial coupling model to study dynamic performance of pantograph-catenary with vehicle-track excitation

Mechanical Systems and Signal Processing, 2021
In the high-speed railway industry, the pantograph-catenary system is responsible to provide continuous electric energy for the high-speed train. The pantograph-catenary system suffers multiple impacts from the complex work environment. The vehicle-track
Yang Song, Zhiwei Wang
exaly   +2 more sources

How to reduce the greenhouse gas emissions and air pollution caused by light and heavy duty vehicles with battery-electric, fuel cell-electric and catenary trucks

Environment International, 2021
The reduction of greenhouse gas emissions is one of the greatest global challenges through 2050. Besides greenhouse gas emissions, air pollution, such as nitrogen oxide and particulate matter emissions, has gained increasing attention in agglomerated ...
Janos Lucian Breuer, Remzi Can Samsun, Detlef Stolten   +2 more
exaly   +2 more sources

Contact Wire Irregularity Stochastics and Effect on High-speed Railway Pantograph-Catenary Interactions

IEEE Transactions on Instrumentation and Measurement, 2020
In high-speed rail operations, contact wire irregularity (CWI) in a catenary is a common disturbance to the pantograph–catenary interaction performance, which directly affects the quality of current collection.
Yang Song, , Petter Nåvik
exaly   +2 more sources

Catenary Electromagnetics for Ultra‐Broadband Lightweight Absorbers and Large‐Scale Flat Antennas

Advanced Science, 2019
Catenary functions are exciting and fundamental building blocks in constructing various kinds of waves in subwavelength structures. Here, a simple yet powerful approach inspired by catenary optics is proposed to realize efficient manipulation of ...
Yijia Huang, Mingbo Pu, Xiangang Luo
exaly   +2 more sources

Wind deflection analysis of railway catenary under crosswind based on nonlinear finite element model and wind tunnel test

Mechanism and Machine Theory, 2022
Yang Song, Mingjie Zhang, Anders Rønnquist   +2 more
exaly   +2 more sources

YOLOv5s-D: A Railway Catenary Dropper State Identification and Small Defect Detection Model

Applied Sciences, 2023
High-speed railway catenaries are vital components in railway traction power supply systems. To ensure stable contact between the pantograph and the catenary, droppers are positioned between the messenger wire and contact line. The failure of one or more
Ziyi Li, Zhiqiang Rao, Lu Ding, Biao Ding, Jianjun Fang, Xiaoning Ma   +5 more
semanticscholar   +1 more source

Soft catenaries [PDF]

Journal of Fluid Mechanics, 2011
AbstractUsing the classical catenary as a motivating example, we use slender-body theory to derive a general theory for thin filaments of arbitrary rheology undergoing large combined stretching and bending, which correctly accounts for the nonlinear geometry of deformation and uses integrated state variables to properly represent the complete ...
Kamrin, Kenneth N., Mahadevan, L.
openaire   +3 more sources

Hardware-in-the-Loop Test Bench for Simulation of Catenary–Pantograph Interaction (CPI) with Linear Camera Measurement

Italian National Conference on Sensors, 2023
Catenary–pantograph contact force is generally used for assessment of the current collection quality. A good current collection quality not only increases catenary lifetime but also keeps a stable electric supply and helps to avoid accidents. Low contact
Antonio Correcher, C. Ricolfe-Viala, M. Tur, S. Gregori, Mario Salvador-Muñoz, Francisco Javier Fuenmayor Fernández, J. Gil, A. Pedrosa   +7 more
semanticscholar   +1 more source

Dynamic Characteristics Analysis of Double Pantograph Catenary of AC Rigid Catenary System

IEEE Access, 2023
The Euler-Bernoulli beam theory is used to establish the vibration differential equation of the rigid catenary, the cantilever support device is equivalent to the spring, and the pantograph is equivalent to the three mass block model.
Ying Wang, Qiang Huang, Xiaoqiang Chen, Ganghui Zhao, X. Mu   +4 more
semanticscholar   +1 more source