Results 21 to 30 of about 3,122 (211)
Multi-objective aerodynamic optimization design of high-speed maglev train nose [PDF]
Railway 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
Jixie 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
Metals, 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
Alexandria 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
High-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
Design of permanent magnet traction system for a new generation of high-speed EMU
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
Research on Local Vibration Control of High-speed EMU Floor
Jixie Gongcheng Xuebao/Chinese Journal of Mechanical Engineering, 2021 exaly +2 more sources
Fault Analysis System for High Speed EMU Control Network Based on Fault Tree
Kongzhi 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
High-Speed RailwayThis 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
Chengshi 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