Results 91 to 100 of about 3,964 (223)

ANALYTICAL AND NUMERICAL MODELS FOR THE AERODYNAMIC NOISE PREDICTION OF AN HIGH-SPEED TRAIN PANTOGRAPH [PDF]

open access: yes, 2014
The present work deals with the aeroacoustic analysis of a three-dimensional pantograph model, through the employment of an innovative analytical approach and a 3D numerical modeling.
D. SIANO   +2 more
core  

Putting the feel in ’look and feel‘ [PDF]

open access: yes, 2000
Haptic devices are now commercially available and thus touch has become a potentially realistic solution to a variety of interaction design challenges.
Brewster, S.A.   +3 more
core   +2 more sources

A temperature compensated fibre Bragg grating (FBG)-based sensor system for condition monitoring of electrified railway pantograph [PDF]

open access: yes, 2017
This paper presents the results obtained from fibre Bragg grating (FBG) sensors integrated into a railway current-collecting pantograph for accurate measurement of contact force and contact location when it is infjected to various temperature conditions.
Brun, L.   +6 more
core   +1 more source

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

open access: yesJournal 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   +5 more
doaj   +1 more source

Pantograph wear assesment in overhead conductor rail systems [PDF]

open access: yes, 2011
Wear is the phenomenon that determines the lifetime of the collector strips. Since wear is an inevitable effect on pantograph-catenary systems, it is necessary to determine optimal operating conditions that can mitigate its effects. In this study we have
Chover Álvarez-Monteserín, José Antonio   +4 more
core  

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

open access: yesIEEE 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   +4 more
doaj   +1 more source

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

open access: yesInventions
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   +7 more
doaj   +1 more source

Holdable Haptic Device for 4-DOF Motion Guidance

open access: yes, 2019
Hand-held haptic devices can allow for greater freedom of motion and larger workspaces than traditional grounded haptic devices. They can also provide more compelling haptic sensations to the users' fingertips than many wearable haptic devices because ...
Okamura, Allison M.   +3 more
core   +1 more source

Wireless Power Transfer for High-precision Position Detection of Railroad Vehicles

open access: yes, 2015
Detection of vehicle position is critical for successful operation of intelligent transportation system. In case of railroad transportation systems, position information of railroad vehicles can be detected by GPS, track circuits, and so on.
Har, Dongsoo, Ryu, Hyun-Gyu
core   +1 more source

Simulation techniques for design of overhead conductor rail lines for speeds over 140 km/h [PDF]

open access: yes, 2011
In overhead conductor rail lines, aluminium beams are usually mounted with support spacing between 8 and 12 meters, to limit the maximum vertical deflection in the center of the span.
Chover Álvarez-Monteserín, José Antonio   +2 more
core  

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