Results 91 to 100 of about 18,850 (212)

CCL-YOLO: Catenary Components Location Based on YOLO and Gather-Distribute Mechanism

open access: yesIEEE Access
The catenary is an important part of the railway power supply system, and the good health of its key components is an important condition for the operation of high-speed trains.
Shuai Xu   +4 more
doaj   +1 more source

Influence of environmental temperature on the elasticity of rigid catenary and pantograph-catenary current collection quality of subway lines

open access: yes机车电传动
In recent years, there have been large-scale incidents of abnormal wear on subway pantographs and catenaries across China, especially in winter. In 2022, more than 30 subway lines nationwide encountered this issue, resulting in economic losses amounting ...
YANG Gang   +4 more
doaj  

Design of a radiator shade for testing in a simulated lunar environment [PDF]

open access: yes
The National Aeronautics and Space Administration (NASA) and The Universities Space Research Association (USRA) have chosen the parabolic/catenary concept from their sponsored Fall 1991 lunar radiation shade project for further testing and development ...
Huff, Jaimi   +2 more
core   +1 more source

Multi-field coupling modeling and temperature rise analysis for the static pantograph-catenary electrical contact of metro trains

open access: yes机车电传动, 2023
Since the catenary still needs to supply current for the trains stopping at stations or stopping temporarily on the track for some reasons, the pantograph-catenary contact part in a stationary state may suffer from overheat, which may lead to a thermal ...
BI Yonglei, WU Aizhong, WENG Lin
doaj  

Analysis of webs of partial-tension-field beams subjected to lateral pressure loadings [PDF]

open access: yes
Webs of partial-tension-field beams subjected to lateral pressure ...
Furuike, T.   +3 more
core   +1 more source

Research on Detection and Optimization Measures of High-speed EMU Power Network Voltage Interruption

open access: yes机车电传动, 2020
With the increase of EMU speed, pantograph catenary offline has become a common and inevitable phenomenon in high-speed EMU operation. The network voltage interruption caused by pantograph catenary offline will affect the reliable operation of EMU ...
Hong SHEN, Dong CHEN, Gang FU
doaj  

An investigation into multi-domain simulation for a pantographcatenary system

open access: yesITM Web of Conferences, 2017
There is a need for modelling various phenomena present in a pantograph-catenary structure, (e.g. wave propagation and its reflections, friction, aerodynamic and electromagnetic forces), which allows for a more reliable study on the dynamic behaviours of
Zdziebko Paweł   +2 more
doaj   +1 more source

System Design and Application of On-board Overhead Catenary Monitoring Device

open access: yes机车电传动, 2020
Overhead catenary is an important device for traction equipments of electrical railway, therefore the condition of overhead catenary will impact the operation safety for the railway. In order to design a set of device on the operating EMUs to monitor the
Wen HE   +4 more
doaj  

Inspection Vehicle for High-speed Railway Catenary System (OCS)in Qinghai-Tibet Railway

open access: yes机车电传动, 2019
In order to meet the needs of intelligent detection and monitoring of catenary in the main line section of Lanzhou-Urumqi high-speed railway line above altitude 2 500 m, a catenary detection vehicle for Qinghai-Tibet railway high-speed section was ...
Wencong WANG   +3 more
doaj  

The true catenary

open access: yes, 2013
V tem diplomskem delu predstavimo problem idealne viseče homogene vrvi, ki jo imenujemo verižnica in opazujemo obnašanje oblike te krivulje. Najprej rešimo problem klasične verižnice na ravni zemlji, kjer je gravitacijsko polje konstantno in pravokotno na podlago, nato pa se osredotočimo na pravo verižnico v središčnem gravitacijskem polju, ki je ...
openaire   +1 more source

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