Results 41 to 50 of about 15,605,525 (207)

The Generating Mechanism and Suppression Measure of the ‘Wheel‐Rail’ Rolling Arc for Electrified Trains

open access: yesHigh 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

The influence of pantograph aerodynamic characteristics caused by its shroud

open access: yes, 2012
The current collection performance of pantograph plays an important role in safe operation of high-speed train. Research shows that pantograph aerodynamic characteristics have a great influence on the current collection of pantograph.
Yao SB(姚拴宝)   +3 more
core   +1 more source

High Speed Blanking: An Experimental Method to Measure Induced Cutting Forces [PDF]

open access: yes, 2013
Lien vers la version éditeur: http://link.springer.com/article/10.1007/s11340-013-9738-1A new blanking process that involves punch speed up to 10 ms −1 has obvious advantages in increased productivity.
LARUE, Arnaud   +5 more
core   +1 more source

Aerodynamic noise from a train pantograph

open access: yes, 2014
Many studies have shown that when the speed of high speed trains exceeds around 300km/h, aerodynamic noise becomes the most significant noise source. The pantograph, or current collector, is mounted on the top of the train and is therefore not shielded ...
Liu, Xiaowan   +3 more
core   +1 more source

Pantograph Body and Its Installation Strength Research of Test EMUs

open access: yes机车电传动, 2013
In order to understand pantograph performance on domestic high-speed test EMUs, pantograph mechanical and structural strength was anticipated. Pantograph body and base finite element analysis model of test EMUs was built, and pantograph body parts ...
SUN Chuan-ming
doaj  

Modeling and Control of Rail Potential With Partial Backflow Obstruction in DC Metro Systems

open access: yesIET Electrical Systems in Transportation, Volume 2026, Issue 1, 2026.
Running rails are employed as the reflux conductor in DC metro systems, whose longitudinal resistance and joint resistance usually increase with the operating years of the system. Subsequently, the partial backflow obstruction occurs, which will greatly increase rail potential (RP) and endanger the security of the metro line operation. In this paper, a
Qiaoyue Li   +5 more
wiley   +1 more source

Statistical identification of geometric parameters for high speed train catenary [PDF]

open access: yes, 2014
Pantograph/catenary interaction is known to be strongly dependent on the static geometry of the catenary, this research thus seeks to build a statistical model of this geometry.
BALMES, Etienne   +2 more
core  

Heavy‐Haul Railway Alignment Design Considering the Heavy‐to‐Light Ratio and Regenerative Braking Energy

open access: yesIET 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

Dual‐Frequency Piezoelectric Vibration Energy Harvester for IoT‐Based Real‐Time Freight Train Health Monitoring in Mongolia

open access: yesIET Intelligent Transport Systems, Volume 20, Issue 1, January/December 2026.
This study evaluates the potential of piezoelectric vibration energy harvesting to power IoT nodes for real‐time health monitoring of the Mongolian railway. Triaxial vibration data were collected at 500 Hz over a 400 km freight route under loaded and unloaded conditions using a custom ESP32‐S3 + MPU9250 system, and dominant frequencies were extracted ...
Bumduuren Pumbuurei   +5 more
wiley   +1 more source

Analysis of flow velocity fluctuation around a train model running in a tunnel using restored waveforms

open access: yesMechanical Engineering Journal, 2021
A pantograph receives aerodynamic force while a train is traveling. As the aerodynamic force increases in proportion to the square of the flow velocity relative to the pantograph, its influence on the pantograph becomes apparent, especially for high ...
Katsuhiro KIKUCHI   +2 more
doaj   +1 more source

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