Results 41 to 50 of about 291 (139)

Fast evaluation on the fatigue level of copper contact wire based on laser induced breakdown spectroscopy and supervised machine learning for high speed railway

High Voltage, Volume 9, Issue 6, Page 1302-1310, December 2024.
Abstract High‐strength copper contact wire is of great significance to the electrified railway power supply system, which constantly provides electric power to the trains during operation. However, contact wire is subject to pressure, vibration, and natural forces such as wind, rain, ice, etc.
Wenfu Wei, Langyu Xia, Zefeng Yang, Huan Zhang, Like Pan, Jian Wu, Guangning Wu   +6 more
wiley   +1 more source

A literature review on the applications of artificial intelligence to European rail transport safety

IET Intelligent Transport Systems, Volume 18, Issue 12, Page 2291-2324, December 2024.
In accordance with Directive (EU) 2016/797 relating to the inoperability of the European railway system, around a hundred articles (122) which deal with applications of artificial intelligence and in particular machine learning, neural networks, ontologies and knowledge graphs are studied and classified by types of railway subsystems.
Habib Hadj‐Mabrouk
wiley   +1 more source

Defect Diagnosis of Rigid Catenary System Based on Pantograph Vibration Performance

Actuators
The condition of a catenary is significant to ensure a high current collection quality. Owing to the dynamic interaction between the pantograph and the catenary system, the vibration of the pantograph can be used to analyze the condition of the catenary ...
Mengying Tan, Haishangyang Li, Lei Nie
doaj   +1 more source

An influence of track stiffness discontinuity on pantograph base vibrations and catenary–pantograph dynamic interaction

Studia Geotechnica et Mechanica, 2020
In this article, the computational methodology of the catenary–train–track system vibration analysis is presented and used to estimate the influence of vehicle body vibrations on the pantograph–catenary dynamic interaction.
Bryja Danuta, Hyliński Adam
doaj   +1 more source

Research of simulation and experiment on arc characteristics of gas mechanical switch

High Voltage, Volume 9, Issue 3, Page 626-635, June 2024.
Abstract An arc is the high‐temperature discharge plasma produced in the opening process of mechanical switches, which directly affects the breaking capability of a hybrid DC circuit breaker. According to the physical mechanism of an electric arc, the construction of an arc model for simulation analysis is an important technical means in the electrical
Cheng Jiang, Lu Qu, Zhangqing Yu, Zhizheng Gan, Xin yan, Rong Zeng, Yulong Huang, Shaofu Li   +7 more
wiley   +1 more source

Research on Rail Transit Current Receiving Characteristics of Pantograph/Flexible Catenary System

机车电传动, 2016
In order to improve the current receiving quality of pantograph/ flexible catenary system, the pantograph/flexible catenary operation simulation test rig was established to study the influence of rail transit catenary parameters on the contact force of ...
LI Amin, WANG Puyi, ZHAN Yongrui, HANG Rongjiu   +3 more
doaj  

The pantograph lift measurement method in overhead catenary system

Nihon Kikai Gakkai ronbunshu
Condition monitoring technology has advanced remarkably in recent years in various areas, including railways. Since the overhead catenary system and the pantograph in railway does not have enough redundancy, failures of the overhead catenary system or ...
Takayuki USUDA, Masaki TAKAHASHI, Yuki AMANO, Yoshitaka YAMASHITA   +3 more
doaj   +1 more source

Dynamic Analysis of Pantograph-Catenary System considering Ice Coating

Shock and Vibration, 2020
Ice coating on overhead contact system (OCS) will affect the sliding of pantograph, and arc discharge phenomena will occur between pantograph and catenary, which will threaten the normal operation of train.
Yongming Yao, Ning Zhou, Guiming Mei, Weihua Zhang   +3 more
doaj   +1 more source

Analysis and suppression of operational overvoltage and inrush current for high‐speed trains by automatic phase‐switching technique

High Voltage, Volume 9, Issue 3, Page 733-748, June 2024.
Abstract When a high‐speed train approaches the insulated phase‐splitting section embedded between neighbouring power supply arms, the vacuum circuit breaker (VCB) installed on trains must be disconnected to maintain the traction power supply system as a no‐load condition for completing phase‐switching action, as the train passes through the phase ...
Ye Cao, Song Xiao, Zhizong Ye, Guangning Wu, Yujun Guo, Guoqiang Gao, Chuanming Sun, Jiancheng Liu, Zheng Chen, Hao Hou, Zijing Wang, Puyang Liu, Yuhui Zhang, Jie Yu   +13 more
wiley   +1 more source

Study of Electromagnetic Radiation From High‐Speed Train Voice and Data Antennae on the Health of Pacemaker Wearers

International Journal of RF and Microwave Computer-Aided Engineering, Volume 2024, Issue 1, 2024.
In China, high‐speed trains have become a major means of transportation for the masses. When the passengers wearing pacemakers travel on high‐speed trains, electromagnetic environment in the carriage where the GSM‐R voice and data antennae are located should be concerned.
Rui Tian, Hao Wu, Mai Lu, Xiao Ding
wiley   +1 more source