Results 21 to 30 of about 3,139 (153)

Effects of Crash Dynamic Parameters of Urban Rail Transit Train on Climbing Behavior

open access: yesChengshi guidao jiaotong yanjiu
[Objective] In order to strengthen the passive safety design ability of urban rail transit trains during operation, it is necessary to study the effects of train crash dynamics parameters on climbing behavior.
Jiao XU   +4 more
doaj   +1 more source

One-Step Electrochemical Synthesis and Assembly of MnO2/Graphene and its Application for Supercapacitors

open access: yesInternational Journal of Electrochemical Science, 2020
We developed a facile, rapid, scalable, and environmentally friendly route to synchronously achieve ultrathin, high-quality graphene and MnO2 nanosheets, which spontaneously migrated and coassembled on a cathodic 3D Ni foam.
Xin Cao   +10 more
doaj   +1 more source

Study on Electromagnetic Interference of high-speed railway EMU

open access: yesTELKOMNIKA Indonesian Journal of Electrical Engineering, 2014
Electromagnetic radiation generated by pantograph-catenaries detachment is one of the inevitable problems with the development of high-speed railway this paper is focusing on the generating mechanism and characteristics of electromagnetic noise caused by pantograph-catenaries system.
LIU Jin-jiang, CHENG Qiang, CHENG Ning
openaire   +1 more source

Impact of Ground Current of HVDC Earth Electrode on High-speed EMU

open access: yes机车电传动, 2021
During the operation of HVDC system with the earth as the loop, the formed current  field in the ground has corrosion effect on the adjacent high-speed railway system.
Jie WU   +4 more
doaj  

Test Research on Vibration State of Transformer in High Speed EMU [PDF]

open access: yesJournal of Physics: Conference Series, 2020
Abstract Transformers are important under-vehicle equipment for high-speed EMUs and play an important role in ensuring the power transmission of EMUs. This article first introduces the vibration reduction theory of the equipment under the EMU, and then briefly introduces the structure of the transformer and the arrangement of the ...
Hai Deng, Huailong Shi, Yayun Qi
openaire   +1 more source

Noise Prediction Study of Traction Arc Tooth Cylindrical Gears for New Generation High-Speed Electric Multiple Units

open access: yesLubricants, 2023
As the speed of the new generation of high-speed electric multiple units (EMU) increases, the requirements for vibration and noise reduction in traction gear trains are becoming higher and higher.
Zhaoping Tang   +4 more
doaj   +1 more source

Energy Consumption Analysis of High-Speed Trains under Real Vehicle Test Conditions

open access: yesJournal of Advanced Transportation, 2022
The study collected statistics on the actual operation of national railway electric multiple units (EMUs) and compared the energy consumption of different EMU models at different speed levels.
Qing Zhang, Hongjun Yu, Xin Su, Yao Li
doaj   +1 more source

An optimization model of EMU circulation problem for high-speed railway [PDF]

open access: yesAIP Conference Proceedings, 2017
The electronic multiple unit (EMU) circulation plan schedule EMUs to perform train tasks based on a timetable while satisfying a number of constraints. This paper propose a model considering several constraints such as maintenance capability, accommodation capacity and maintenance management modes.
Wenjun Li, Lei Nie
openaire   +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  

Research on Noise Reduction Modification Design of High Speed EMU Traction Arc Toothed Cylindrical Gears

open access: yesApplied Sciences, 2023
Aiming at the deficiencies of the traction helical gear transmission system when the EMU is running at high speed, this paper proposes and designs a kind of arc toothed cylindrical gear adapted to the traction of higher speed EMU.
Jianping Sun   +4 more
doaj   +1 more source

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