Results 1 to 10 of about 4,348 (251)

Economic Analysis of Urban Rail Transit Train Service Life Extension Based on Whole Life-cycle Cost

Chengshi guidao jiaotong yanjiu
[Objective] In evaluating the service life extension of urban rail transit trains, economic calculation serves as a key basis for decision-making and plays a critical role in determining whether to carry out life extension and associated upgrade ...
ZHOU Jiong, ZHANG Zhisen, WANG Jinyang, GONG Xiaobo, ZHANG Yan, WAN Tiejun   +5 more
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Discussion of Metro Vehicle Traction Control under Washing Mode

机车电传动, 2014
Metro vehicle had low target speed under washing mode, which put forward higher requirements on traction system. Taking Wuxi metro line 1 as example, metro vehicle traction control under washing mode was discussed in detail. With speed-torque closed-loop
YU Tailiang, ZHANG Ming
doaj  

Study on Grounding System of the Metro Vehicles

, 2020
The function of the grounding system is related to the operation performance of the metro vehicles, so it has special significance to conduct a research. The classification and definition of the vehicle grounding was introduced, including protective earthing, functional bonding and EMC-related grounding.
Mingyuan HAO, Zhenliang FU, Xinghua WANG, Xueyan TIAN, Lijuan WANG   +4 more
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Calculation of Short-circuit Current of Metro Vehicle Based on External Characteristics of Rectifier Unit

机车电传动, 2019
Combined with the actual metro line and vehicle electric parameters, the electrical characteristics of rectifier unit was analyzed in detail and the calculation method of short-circuit current occurring on the metro vehicle was proposed based on the ...
Lei SUN, Mingli WU, Jixing SUN, Zihui HAO, Lei PAN, Tiance LI   +5 more
doaj  

Study on Condition Evaluation Method of Shanghai Rail Transit Vehicle Equipment

Chengshi guidao jiaotong yanjiu
[Objective] Shanghai Metro features diverse vehicle models and significant variations in equipment conditions, so it is necessary to establish a scientific and effective vehicle equipment status assessment system to ensure the safe and reliable operation
DING Yaqi
doaj   +1 more source

Load Characteristics of B-type Metro Vehicle Bogie Frame

Chengshi guidao jiaotong yanjiu
Objective The international standards adopted in metro vehicle design and verification in China do not fully align with the actual vehicle operating conditions, resulting in the phenomenon of fatigue cracks in some metro vehicle bogie frames before ...
WANG Yuguang, WANG Wenjing, LI Shuang, YANG Guangxue   +3 more
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Analysis on Aerodynamic Parameters for Rapid Metro Vehicle Design

DEStech Transactions on Engineering and Technology Research, 2017
Regarding rapid metro vehicle, the possible aerodynamic effects of vehicle are described and the analysis of vehicle design parameters related to the aerodynamic effect and their change rule are briefly introduced. This paper, from one side, provides a basis for the design of rapid metro vehicle.
WENTIAN TANG, LILI WANG
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Research on Dynamic Performance and Wheel Damage of Metro Vehicle with Radial Bogie

机车电传动, 2019
In order to study the dynamic performance of metro vehicles, the steering principle of radial mechanism was analyzed, three dynamic models of metro vehicles were established, which were traditional, self-steering and forced-steering and according to the ...
Jincheng LI, Junjun DING, Yang YANG, Pengpeng WU, Fu LI   +4 more
doaj  

Using the unbiased grey Markov chain optimization model to forecast passenger flows through existing urban rail transit stations

Digital Transportation and Safety
To accurately forecast the passenger flows of existing stations in urban rail transit and provide a scientific basis for subway operation management departments, a passenger flow prediction model optimized by an unbiased grey Markov chain was constructed.
Fuquan Pan, Wenzheng Li, Lixia Zhang, Xiaoxia Yang, Hailiang Tang, Yongkai Xia   +5 more
doaj   +1 more source

Nonlinear Impacting Dynamic Model of a Metro Vehicle

Journal of Mechanical Engineering, 2012
In the case of the consideration of the nonlinear stiffness and damping of couplers and buffers,friction force between wheel and rail,the nonlinear dynamic impacting model of metro vehicle group is established.The nonlinear stiffness and damping of the buffer are determined by means of test.Simulation results of impacting characteristics between one ...
openaire   +1 more source