Results 1 to 10 of about 16,923,133 (204)

A Real-Time Fault Early Warning Method for a High-Speed EMU Axle Box Bearing [PDF]

open access: yesSensors, 2020
An axle box bearing is one of the most important components of high-speed EMUs (electric multiple units), which runs at a very fast speed, suffers a heavy load, and operates under various complex working conditions.
Lei Liu   +3 more
doaj   +5 more sources

Design of permanent magnet traction system for a new generation of high-speed EMU

open access: yes机车电传动, 2023
In order to promote scientific and technological innovation in the field of high-speed railway equipment, a new generation of 400 km/h EMU is attempted to create, which is faster, safer, more environment-friendly, energy-saving, intelligent. Based on the
WANG Lei   +3 more
doaj   +2 more sources

TOPOLOGY OPTIMIZATION DESIGN OF HIGH SPEED EMU GEARBOX

open access: yesJixie qiangdu, 2022
As the core component of high-speed EMU bogie, gearbox should meet the requirements of lightweight and high reliability in order to ensure the safety and comfort of vehicle operation. Taking the gearbox of a domestic high-speed EMU as the research object,
GAO Yang   +3 more
doaj   +2 more sources

The integration of optimizing train timetables with EMU route plans [PDF]

open access: yesScientific Reports
Generally, to address the resource management issues in high-speed railway operations, particularly in the context of large-scale networked high-speed train transportation organizations, a phased optimization approach is introduced. This approach divides
Wenjun Li   +3 more
doaj   +2 more sources

Multi-objective aerodynamic optimization design of high-speed maglev train nose [PDF]

open access: yesRailway Sciences, 2022
Purpose – The nose length is the key design parameter affecting the aerodynamic performance of high-speed maglev train, and the horizontal profile has a significant impact on the aerodynamic lift of the leading and trailing cars Hence, the study analyzes
Shuanbao Yao, Dawei Chen, Sansan Ding
doaj   +1 more source

Study of the Precipitation Kinetics, Microstructures, and Mechanical Properties of Al-Zn-Mg-xCu Alloys

open access: yesMetals, 2022
Microstructures and mechanical properties of Al-5Zn-2.6Mg alloys with 0.24, 0.43, and 0.91 wt.% Cu were studied and the precipitation rate and activation energy at 378, 393, and 408 K were calculated using the Arrhenius equation in this work.
Aiqin Tian   +3 more
doaj   +1 more source

Investigation on the fluid-solid coupling effect in high-speed train’s windshield structure

open access: yesAlexandria Engineering Journal, 2023
The high-speed train’s windshield structure is vital to the boundary layer development and drag reduction design. Up to date, windshield structures are assumed as rigid body in most train aerodynamic numerical simulations.
Jiangchuan Ma   +7 more
doaj   +1 more source

Fault Analysis System for High Speed EMU Control Network Based on Fault Tree

open access: yesKongzhi Yu Xinxi Jishu, 2022
At present, fault analysis of high speed EMU is to classify and list all the fault causes according to the working principle, characteristics, functions and structure of the system.
XU Qing, LI Chuanyu
doaj   +3 more sources

Analysis of loading characteristics of windshield wiper structure on high-speed train

open access: yesHigh-Speed Railway
This paper studies the structural response of high-speed train wipers under the combined action of complex flow fields and scraping actions. The stress concentration areas are determined through simulation analysis, and the stress and aerodynamic load ...
Honglei Yuan, Quanwei Che, Sicong Zhao
doaj   +1 more source

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

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