Results 81 to 90 of about 15,605,525 (207)

Coupling effects between pantograph of high-speed train and tunnel

, 2022
Compression and expansion waves are generated as a train enters a tunnel at high speed. The waves ceaselessly pass through a pantograph as they propagate back and forth in the tunnel; air flow sharply jumps at the exit of the tunnel.
张玲芳, 杨国伟, 郭易, 纪占玲, 郭迪龙   +4 more
core   +1 more source

Interior Noise Reduction Method of Pantograph Areas for High-speed Trains Based on Active Jet Technology [PDF]

Journal of Applied Fluid Mechanics
The interior noise caused by the pantograph area is greater than that caused by other areas, and the impact of this pantograph area becomes more significant as the speed of high-speed trains increases, especially above 350 km/h.
D. Liu, X. Miao, Z. Zhang, J. Yang, T. Yuan, R. Song   +5 more
doaj   +1 more source

A New Active Control Strategy for Pantograph in High-Speed Electrified Railways Based on Multi-Objective Robust Control

IEEE Access, 2019
In high-speed railways, the quality of current collection of high-speed train is directly determined by the contact force between the contact wire of the catenary and the registration strip of the pantograph.
Jing Zhang, Hantao Zhang, Baolin Song, Songlin Xie, Zhigang Liu   +4 more
doaj   +1 more source

HS2 Phase One: London to West Midlands Historic Environment Digital Archive

Parent collection for Phase One of the High Speed 2 railway line (London to West Midlands)
High Speed Two Ltd.
core   +1 more source

Impact of Damaged Dropper on Pantograph–Catenary Current Collection Quality in High-Speed Railways

Inventions
The regularity of the catenary system and the stability of pantograph–catenary interaction are crucial for ensuring continuous and stable current collection quality in high-speed trains.
Caizhi Yang, Huan Zhang, Like Pan, Yuan Yuan, Qun Yu, Qing Xiong, Ziqian Yang, Wenfu Wei   +7 more
doaj   +1 more source

A numerical study on aerodynamic noise sources of high-speed train

, 2012
Firstly, in order to investigate the noise generation mechanisms of the pantograph, the key source in aerodynamic noise generation, the basic models of a circular cylinder and a series of rectangular cylinders were numerical studied respectively and ...
Yang GW(杨国伟), 杨焱, Yang Y(杨焱)   +2 more
core   +1 more source

Numerical and analytical models for high speed train pantograph radiated noise prediction

, 2008
Several studies to increase train speed are underway with the target to design a new generation pantograph in order to reduce aerodynamic noise. The aerodynamic characteristics as shapes of pantograph are the main issue.
LECCE, LEONARDO, Leonardo Lecce, Massimo Viscardi, Salvatore Melchionna, VISCARDI, MASSIMO, Michele Iadevaia   +5 more
core   +1 more source

EMUs Pantograph Aerodynamics Experimental Research in Dropping Status under Strong Wind Condition

机车电传动, 2016
When EMUs run at a high speed, the pantograph would be affected by airflow and blown up in dropping status, which would result in catenary short-circuit fault. In order to evaluate the pantograph aerodynamics characteristics in dropping status and ensure
JIAO Wengen
doaj  

Environmental and Track Perturbations on Multiple Pantograph Interaction with Catenaries in High-Speed Trains

, 2013
The top velocity of high-speed trains is generally limited by the ability to supply the proper amount of energy through the pantograph–catenary interface.
Pombo, Joao, Ambrosio, Jorge
core   +1 more source

Analysis of Pantograph–Catenary Current Collection Performance Under Speed-Upgrading Operating Conditions

Vehicles
To support the safe operation and technological promotion of existing line speed-up projects, this paper presents an assessment method for pantograph–catenary contact performance under the 200 km/h speed conditions, using the Guangzhou–Shenzhen Lines I ...
Liqian Wang, Yantao Liang, Dehai Zhang, Xufan Wang, Tong Xing, Yang Song   +5 more
doaj   +1 more source