Results 21 to 30 of about 25,285 (264)

The future of high-speed train

open access: yesProceedings Autonomous Decentralized Systems, 2005. ISADS 2005., 2005
High-speed intercity railways have grown into profitable business, achieving a renaissance in rail transport. High-speed railways need constant updating to new systems if they are to be winners in this age of competing transportation modes. In view of that situation, JR East started an R&D project to achieve even faster speeds-more than 300km/h. A test
openaire   +2 more sources

Rail fatigue crack propagation in high-speed wheel/rail rolling contact

open access: yesJournal of Modern Transportation, 2017
To study the wheel/rail rolling contact fatigue of high-speed trains, we obtain the distribution of contact forces between wheel and rail by introducing the strain-rate effect.
Xiaoyu Jiang   +3 more
doaj   +1 more source

Reduction of Power Consumption and CO2 Emissions as a Result of Putting into Service High-Speed Trains: Polish Case

open access: yesEnergies, 2022
This article presents the results of analyses of energy efficiency and environmental outcomes of putting into operation high-speed trains—first of that kind in Poland—in 2014 on upgraded 3 kV DC lines.
Agata Pomykala, Adam Szelag
doaj   +1 more source

Aerodynamics of railway train/tunnel system: A review of recent research

open access: yesEnergy and Built Environment, 2020
The coupling and complexity of railway train / tunnel system are further aggravated by increasing train speed, which produces a series of aerodynamics problems, such as aerodynamic drag, slipstream, pressure wave and micro pressure wave.
Jiqiang Niu   +4 more
doaj   +1 more source

Route management modeling of high-speed trains on the train dispatcher section [PDF]

open access: yesE3S Web of Conferences, 2023
This article gives a brief overview on fragmentation and how to prepare for a high-speed train. Currently, on the sections where high-speed trains run, the train dispatcher uses his experience and high skills to solve this problem by preparing train ...
Muhiddinov Obid, Boltayev Sunnatillo
doaj   +1 more source

High-speed trains: in microchannels? [PDF]

open access: yesJournal of Fluid Mechanics, 2016
Kahkeshani et al. (J. Fluid Mech., vol. 786, 2016, R3) have studied particle ordering in suspension flow in a rectangular microchannel. Experiments and numerical simulations reveal that inertial focusing and hydrodynamic interactions result in long-lived ‘trains’ of regularly spaced particles.
openaire   +1 more source

About the influence of wheel-rail adhesion on the maximum speed of trains

open access: yesMATEC Web of Conferences, 2018
Wheel-rail adhesion is a fundamental aspect in rail transport, with high impact on traction and braking of trains. In the case of high speeds trains, wheel-rail adhesion is particularly important, as the maximum usable traction force is limited by the ...
Spiroiu Marius-Adrian
doaj   +1 more source

Construction of High-Speed Tracks

open access: yesCommunications, 2011
The current situation and conditions of construction of high speed tracks (HST) in the Slovak Republic and the comparison with the situation abroad. The speed of train sets and the track quality for high speed trains. The dynamics of railway running. The
Stanislav Hodas
doaj   +1 more source

Theory and practice for assessing structural integrity and dynamical integrity of high-speed trains [PDF]

open access: yesRailway Sciences
Purpose – The safety and reliability of high-speed trains rely on the structural integrity of their components and the dynamic performance of the entire vehicle system. This paper aims to define and substantiate the assessment of the structural integrity
Weihua Zhang   +3 more
doaj   +1 more source

AGAINTS AND FOR THE HIGH SPEED TRAINS’ MULTIMPLICATION [PDF]

open access: yesAnnals of the University of Oradea: Economic Science, 2008
In this exposure we intend to make visible the situation in which global warming is given by road and air transport, how could be revitalized railways, and how high speed trains could become a preferred mode of transport. But there is manifesting an opposition to railway development, nurtured by different interests, ranking from governments themselves,
Benea Ciprian, Baciu Adrian
openaire   +1 more source

Home - About - Disclaimer - Privacy