Results 21 to 30 of about 5,355 (265)

Mechanism of aerodynamic force generation concerning train vibration in tunnel (LES of large-scale flow structure around simplified train model)

open access: yesNihon Kikai Gakkai ronbunshu, 2020
To clarify the mechanisms underlying airflow-induced vibrations of high-speed trains running through tunnels, large-eddy simulation of a large-scale flow structure around a simplified 6-car train model was conducted.
Koji NAKADE   +2 more
doaj   +1 more source

Vibration Reduction Countermeasures of Railway Concrete Viaduct

open access: yesMATEC Web of Conferences, 2015
In this paper, numerical experiments about the structure borne sound countermeasures were conducted, by paying attention to the structure vibration of RC girder.
Watanabe Tsutomu   +3 more
doaj   +1 more source

NUMERICAL SYNTHESIS OF THE TRACK ALIGNMENT AND APPLICATIONS. PART II: THE SIMULATION OF THE DYNAMIC BEHAVIOUR IN THE RAILWAY VEHICLES [PDF]

open access: yesTransport Problems, 2016
This paper features a method of synthesizing the track irregularities by which the alignment may be analytically represented by a pseudo-stochastic function, as well as the implementation of such a method in the numerical simulation of the dynamic ...
Mădălina DUMITRIU
doaj   +1 more source

Dynamics of railway freight vehicles [PDF]

open access: yesVehicle System Dynamics, 2015
This paper summarises the historical development of railway freight vehicles and how vehicle designers have tackled the difficult challenges of producing running gear which can accommodate the very high tare to laden mass of typical freight wagons whilst maintaining stable running at the maximum required speed and good curving performance.
Iwnicki, S.   +3 more
openaire   +1 more source

Exploring Changes in Land Surface Temperature Possibly Associated with Earthquake: Case of the April 2015 Nepal Mw 7.9 Earthquake

open access: yesEntropy, 2020
Satellite thermal infrared remote sensing has received worldwide attention in the exploration for earthquake precursors; however, this method faces great controversy.
Shunyun Chen   +7 more
doaj   +1 more source

Predicting Critical Speed of Railway Tracks Using Artificial Intelligence Algorithms

open access: yesVibration, 2023
Motivated by concerns regarding safety and maintenance, the operational speed of a railway line must remain significantly below the critical speed associated with the track–ground system. Given the large number of track sections within a railway corridor
Ana Ramos   +4 more
doaj   +1 more source

Seismic Train-Running Safety on Structures

open access: yesProceedings, 2018
In this study, using the analysis program DIASTARS III that is able to take into account the dynamic interaction between railway vehicles and railway structures, we conducted seismic train-running analysis on a model line that is about 4.8 km long.
Keiichi Goto   +2 more
doaj   +1 more source

NUMERICAL SYNTHESIS OF THE TRACK ALIGNMENT AND APPLICATIONS. PART I: THE SYNTHESIS METHOD [PDF]

open access: yesTransport Problems, 2016
This paper features a method to synthesize the track irregularities, by which the alignment may be analytically represented by a pseudo-stochastic function, as well as the implementation of such method in the numerical simulation of the dynamic behaviour
Mădălina DUMITRIU
doaj   +1 more source

Neuronal network approach to study the operation of shuttle-service trains

open access: yesВестник Научно-исследовательского института железнодорожного транспорта, 2023
Introduction. The authors study the section of the shuttle-service trains. Based on a detailed description and characterisation of the site, it is categorised as a man-machine and difficult-to-formalise system.
A. L. Kazakov   +2 more
doaj   +1 more source

Method of estimating the probability of derailment during an earthquake using the seismic waveform

open access: yesNihon Kikai Gakkai ronbunshu, 2019
This paper describes a methodology for probability estimation of derailment occurrence due to an earthquake by the use of seismic waveforms. Under the method proposed, an index for probability estimation of derailment is calculated using the estimated or
Kohei IIDA   +2 more
doaj   +1 more source

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