Results 51 to 60 of about 507 (175)

Research on Aerodynamic Noise Reduction for High-Speed Trains

Shock and Vibration, 2016
A broadband noise source model based on Lighthill’s acoustic theory was used to perform numerical simulations of the aerodynamic noise sources for a high-speed train.
Yadong Zhang, Jiye Zhang, Tian Li, Liang Zhang, Weihua Zhang   +4 more
doaj   +1 more source

Classifying Power Quality Issues in Railway Electrification Systems Using a Nonsubsampled Contourlet Transform Approach

Engineering Reports, Volume 7, Issue 8, August 2025.
Railway electrification systems indeed have unique challenges due to variable power demand and dynamic train operations. Power quality (PQ) monitoring for high‐speed trains (HSTs) is essential to guarantee the effectual and unfailing operation of the ESs.
Pampa Sinha, Kaushik Paul, I. M. Elzein, Mohamed Metwally Mahmoud, Ali M. El‐Rifaie, Wulfran Fendzi Mbasso, Ahmed M. Ewais   +6 more
wiley   +1 more source

Optimization Design Scheme for Aerodynamic Noise Reduction in Pantograph Area of High-speed Railway EMU

Chengshi guidao jiaotong yanjiu
［Objective］ With the increase of train operating speed, noise levels have gradually become a critical factor restricting the development of high-speed railways.
YU Yongge, WANG Chengtao, GAO Yang, YU Wanyi, MA Changfu, ZHANG Guoqin   +5 more
doaj   +1 more source

Research on the phased development characteristics of pantograph catenary arc under low air pressure and strong airflow

机车电传动, 2023
Pantograph catenary arc is an important factor threatening the current-receiving quality of high-speed trains. The motion characteristics and development law of pantograph arc under low air pressure are significantly different from those under ...
XU Yue, QIAN Pengyu, CHEN Huan, PENG Wei, YANG Zefeng   +4 more
doaj  

DEVELOPMENT OF HIGH-REACH PANTOGRAPHS FOR HIGH-SPEED RAILWAYS [PDF]

, 2023
The pantograph’s purpose is to transfer electrical power from the overhead contact line to the train’s electric propulsion unit. To perform its function adequately, it is necessary to maintain the static contact force between the pantograph and the contact line within the values prescribed by appropriate standards for the entire extension range of the ...
Peković, Ognjen, Aleksić, Ivan, Svorcan, Jelena, Volf, Goran, Matić, Dušan, Kirin, Snežana, Mitrović, Nenad   +6 more
openaire  

Strain Amplification via Helically Braided Fiber Reinforced Sleeve for Soft Material Energy Harvesting

Advanced Materials Technologies, Volume 10, Issue 13, July 8, 2025.
This study presents a braided fiber‐reinforced sleeve that amplifies strain in soft materials, enhancing their performance in stretchable devices like sensors and energy harvesters. By reinforcing and elongating encased materials, the sleeve increases the “effective” strain.
Emily Duan, Syed Ahmed Jaseem, Jeong Yong Kim, Michael D. Dickey, Matthew Bryant   +4 more
wiley   +1 more source

Failure Analysis and Structural Optimization for Elastic Element of High-speed Pantograph

机车电传动, 2020
The elastic element of high-speed pantograph is used to relieve the shock and vibration between pantograph and catenary to ensure the dynamic current collection of pantograph head is stable and reliable.
Yingyu YANG, Congjian JIANG, Jiejun LYU
doaj  

Application of GWO-SVM Algorithm in Arc Detection of Pantograph

IEEE Access, 2020
High-speed train will produce pantograph arc during the driving process, which is harmful to pantograph-catenary system. In order to reduce pantograph-catenary system damage, a method based on Gray Wolf algorithm to optimize the binary Support Vector ...
Bin Li, Chenyu Luo, Zhiyong Wang
doaj   +1 more source

Multifunctionality of Single‐Atom‐Thick 2D Magnetic Atoms in Nanolaminated M2AX: Toward Permanent Magnets and Topological Properties

Advanced Physics Research, Volume 4, Issue 6, June 2025.
High‐throughput calculations unveil the stability, magnetic behavior, and transport properties of M2AX phases with magnetic A elements, predicting 139 metastable compounds. Highlights include high‐Curie‐temperature magnets, exceptional magneto‐crystalline anisotropy, and tunable anomalous Hall and Nernst conductivities, offering new insights and ...
Chen Shen, Fu Li, Yixuan Zhang, Ruiwen Xie, Ilias Samathrakis, Bing Han, Hongbin Zhang   +6 more
wiley   +1 more source

A Fast Simulation Model of Pantograph–Stitched-Catenary Interaction in Long-Distance Travel

Applied Sciences
The increasing operation speed of high-speed trains allows the pantograph to continuously interact with the catenary over a long distance in a short time, and many new methods have been developed to efficiently calculate its dynamics.
Like Pan, Yan Xu, Zhendong Liu, Chonhui Xiao, Jilin Lei   +4 more
doaj   +1 more source