Results 11 to 20 of about 3,207 (218)

Optimization of Multi-Day Flexible EMU Routing Plan for High-Speed Rail Networks

open access: yesApplied Sciences
With the continuous expansion and increasing operational complexity of high-speed railway networks, there is a growing need for more flexible and efficient EMU (Electric Multiple Unit) routing strategies.
Xiangyu Su   +3 more
doaj   +3 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

INFLUENCE OF WHEEL POLYGON ON DYNAMIC PERFORMANCE OF HIGH SPEED EMU

open access: yesJixie qiangdu, 2020
With the continuous improvement of the running speed of the EMU,the wear of the wheels during the operation is intensified,which increases the maintenance cost and deteriorates the service environment of the train.
ZHANG JieJuan   +5 more
doaj   +1 more source

Review on Fault Diagnosis Technology for High-speed EMU Gearboxes

open access: yesJixie chuandong, 2023
The gearbox is an important component of the system of high-speed trains, which is susceptible to damage and failure due to the long-term high-speed and heavy-load working environment, so it is important to diagnose the faults of high-speed train ...
Zhang Jianchao   +4 more
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

Study on the technologies development trend of high speed EMUs

open access: yesHigh-speed Railway, 2023
High speed railway technologies are rapidly development in the world. The total distance of the high speed railway is more than 40,000 kilometers in China, and many types of high speed Electrical Multi-Units (EMUs) are operated. The top operation velocity of the train reaches 350 km/h. New science and technologies are developing rapidly. New generation
Chunfang Lu, Zunsong Ren, Chengxian Ma
openaire   +2 more sources

Research on Local Vibration Control of High-speed EMU Floor

open access: yesJixie Gongcheng Xuebao/Chinese Journal of Mechanical Engineering, 2021
exaly   +2 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  

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

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