Results 81 to 90 of about 1,480 (206)

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

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

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

Field acoustic measurements of high-speed train sound along BTIR

, 2013
In this paper, single-point field measurements of noise radiated from high-speed trains were performed at two sites along Beijing-Tianjin intercity railway (BTIR), aiming at acquiring the realistic acoustic data for validation and verification of ...
Yu HH(喻华华), Li JC(李家春), Yu, HH (reprint author), Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China.   +2 more
core   +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

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

Numerical study on multi-pantograph railway operation at high speed

, 2015
Multi-pantograph operation allows several short electric multiple unit (EMU) trainsets to be coupled or decoupled to adapt to daily or seasonal passenger-flow variation.
Liu, Zhendong
core  

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  

Interferometric fiber sensor for high-speed railway pantograph monitoring

, 2008
A new optical fiber sensor is proposed to monitor pantograph strain in high-speed railway. The sensor is based on a Michelson’s interferometer with a 3x3 coupler and employs standard 1550nm optical communications.
BOCCIOLONE, MARCO FRANCESCO, COLLINA, ANDREA, CATTANEO, GIANLUCA, BOFFI, PIERPAOLO, Barberis A., BUCCA, GIUSEPPE, Amoriello G., MARTINELLI, MARIO   +7 more
core  

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