Results 41 to 50 of about 3,964 (223)
Energies, 2023 During train travel, various factors, such as body vibration, uneven contact lines, and hard spots on carbon sliding plates and over electric neutral zones, often lead to brief separation between the pantograph and the contact line, i.e., the pantograph ...
Yixuan Yang +6 more
doaj +1 more source
Influence of Embankments with Parapets on the Cross-Wind Turbulence Intensity at the Contact Wire of Railway Overheads [PDF]
, 2010 Winds as an environmental factor can cause significant difficulties for the railway system operation. The railway overhead has been particularly vulnerable to cross-winds related problems, such as development of undamped oscillations due to galloping ...
Avila Sanchez, Sergio +2 more
core +2 more sources
High Voltage, Volume 11, Issue 2, Page 370-384, April 2026.ABSTRACT As the ‘main blood vessel’ of the traction power supply system for high‐speed trains, the ‘wheel‐rail’ coupling grounding reflux system provides the vital channel to send traction current back to terrestrial substations; meanwhile, the rail track also plays a role in transmitting the train's occupancy signal to the control system. An insulated
Jiefu Hou +9 more
wiley +1 more source
MachinesCrosswind is a critical environmental factor affecting the dynamic interaction between the pantograph and catenary in high-speed trains, which can severely compromise the operational stability of the system. To address this challenge, this study develops
Mengyao Wang +4 more
doaj +1 more source
Research progress and prospect of pantograph slide materials
机车电传动, 2023 The pantograph slide is the core equipment for the train to obtain energy, and the good performance of its material is the key to ensuring the trains' safe and stable operation.
WU Guangning +6 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 +6 more
openaire
Simulation model for the study of overhead rail current collector systems dynamics, focused on the design of a new conductor rail [PDF]
, 2006 Overhead rigid conductor arrangements for current collection for railway traction have some advantages compared to other, more conventional, energy supply systems.
Arriola I. +9 more
core +2 more sources
IET Intelligent Transport Systems, Volume 20, Issue 1, January/December 2026.This study proposes an NSGA‐II framework enhanced with struct‐based encoding for bi‐objective optimization of heavy‐haul railway vertical alignment (construction cost and energy consumption), which requires no preset vertical points of intersection (VPIs) and inherently meets most constraints.
Shengda Zhuo +4 more
wiley +1 more source
Visualization of Dipole Noise Source around High Speed Pantograph
Transaction of the Visualization Society of Japan, 2005 パンタグラフの舟体は新幹線の主要な空力音源の1つであり，その低騒音化が強く要求されている．ただし，高速域でパンタグラフが良好な集電性能を維持するためには舟体の揚力特性を適正に保つ必要があるため，空力音低減は容易ではない．そこで著者らは，舟体の空力音発生メカニズムを明示することによって低騒音化設計を支援することを目指し，流れ場のCFD解析とHoweの渦音理論に基づく音響解析手法を組合せた手法を用いて，舟体から発生する空力音の遠方場における評価と舟体まわりの二重極音源分布の可視化を行った．また，検証のための風洞実験も実施した．これらの結果，二重極音の評価結果が実験結果と定性的に一致することを示した．また，二重極音源分布の可視化結果から ...
Hiroyuki HOUZU +3 more
openaire +2 more sources
IET Power Electronics, Volume 19, Issue 1, January/December 2026.This article presents an active power filtering control method to suppress ripple power in the DC‐link of railway traction systems, including both the inherent second‐order ripple of single‐phase rectifiers and additional frequency ripples introduced by the pantograph–catenary arc.
Wei Wang +5 more
wiley +1 more source