Results 21 to 30 of about 347,607 (294)

Research on Virtual Track Train Path-Tracking Control Based on Improved MPC and Hierarchical Framework: A Reconfigurable Approach

open access: yesApplied Sciences, 2023
The virtual track train (VTT) is a new urban public transportation system that adopts all-axle steering and distributed drive. The Super autonomous Rail rapid Transit (SRT), as one of them, adopts a four-module six-axle structure.
Zehan Wang   +3 more
doaj   +1 more source

Evaluating rail transit criticism

open access: yes, 2010
This report evaluates criticism of rail transit. It examines claims that rail transit is ineffective at improving transportation system performance, that rail transit investments are not cost effective, and that transit is an outdated form of ...
Litman, Todd
core   +2 more sources

Analysis of wheel-rail adhesion redundancy considering the third-body medium on the rail surface [PDF]

open access: yesRailway Sciences
Purpose – In response to the problem of insufficient traction/braking adhesion force caused by the existence of the third-body medium on the rail surface, this study aims to analyze the utilization of wheel-rail adhesion coefficient under different ...
Chun Tian   +4 more
doaj   +1 more source

Damping Coefficient Optimization for the Articulated System of Virtual Track Trains

open access: yesShock and Vibration
Virtual track trains are a new type of rail transportation because the multisection formation structure leads to more degrees of freedom of the vehicle, which may cause unstable phenomena, such as tailing, cross-swing, and folding, affecting the ...
Chao Li   +5 more
doaj   +1 more source

A New Vibration Absorber Design for Under-Chassis Device of a High-Speed Train

open access: yesShock and Vibration, 2017
To realize the separation of vertical and lateral stiffness of the under-chassis device, a new type of vibration absorber is designed by using the negative stiffness of the disc spring in parallel with the rubber component.
Yu Sun   +4 more
doaj   +1 more source

Simulation Study on Vertical Deformation of CRTS III Slab Track under Ambient Temperature and Its Upgrade to “Green Maintenance”

open access: yesApplied Sciences, 2021
In view of the vertical deformation of CRTS III slab ballastless track of high-speed railways under the action of ambient temperature, a simulation model of the temperature field and vertical deformation of CRTS III slab ballastless track was developed ...
Junzhao Zhou   +3 more
doaj   +1 more source

Energy Transition of Rail Transport: Assessing the competitiveness of decarbonized rail alternatives

open access: yes, 2023
Cet article propose une méthode permettant d'évaluer la compétitivité des alternatives ferroviaires décarbonées. À notre connaissance, il n'existe pas de méthode standardisée pour évaluer la compétitivité de ces alternatives par rapport aux solutions existantes : c'est l'objet de notre démarche.
openaire   +2 more sources

A Worldwide State-of-the-Art Analysis for Bus Rapid Transit: Looking for the Success Formula [PDF]

open access: yes, 2015
This paper’s intended contribution, in terms of providing an additional angle in the existing Bus Rapid Transit (BRT) state-of-the-art knowledge spectrum, is a dual one.
Nikitas, Alexandros   +3 more
core   +1 more source

Semantic Modeling in Materials Science and Engineering With Platform MaterialDigital Core Ontology 3.0

open access: yesAdvanced Engineering Materials, EarlyView.
The community‐driven Platform MaterialDigital Core Ontology (PMDco) 3.0 is introduced as a Basic Formal Ontology‐aligned semantic backbone for the processing–structure–properties paradigm in Materials Science and Engineering. Modular engineering, automated releases, and validation workflows are highlighted and key semantic patterns for materials ...
Markus Schilling   +15 more
wiley   +1 more source

Application of Visual Three-Position Isolation and Grounding Integration Device Replacing Visual Grounding Device

open access: yesChengshi guidao jiaotong yanjiu
[Objective]Disconnector is a key equipment in rail transit traction power supply system. With the development of intelligent switch equipment technology and the increasing demand for intelligent operation and maintenance management of power supply ...
LI Jun   +10 more
doaj   +1 more source

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