Results 1 to 10 of about 1,959,097 (341)

Simulation research of railway crossings with stiffness control [PDF]

open access: yesTransport Problems, 2007
This research presents the existing problem of railway elements and motor – vehicle road elements at their intersections. The work also concerns issues of designing and constructing railway crossings at the intersections of motor-vehicle and rail ...
Jan TARGOSZ
doaj   +2 more sources

Analysis of flow velocity fluctuation around a train model running in a tunnel using restored waveforms

open access: yesMechanical Engineering Journal, 2021
A pantograph receives aerodynamic force while a train is traveling. As the aerodynamic force increases in proportion to the square of the flow velocity relative to the pantograph, its influence on the pantograph becomes apparent, especially for high ...
Katsuhiro KIKUCHI   +2 more
doaj   +1 more source

Reduction of vertical vibration of railway vehicle with high-damping elastic support of underfloor equipment

open access: yesNihon Kikai Gakkai ronbunshu, 2021
This paper presents a method for reducing vertical vibrations in a railway vehicle carbody by supporting underfloor equipment using high-damping elastic mounts. This is a kind of dynamic vibration absorber utilizing underfloor equipment as a mass element
Ken-ichiro AIDA   +3 more
doaj   +1 more source

Utilization of 3D Printing in Replacement of Basic Plastic Workpieces

open access: yesInternational Journal of Engineering and Management Sciences, 2021
In the experiment, a 3D printed cogwheel is made using the FDM technology to replace a broken part in a sewing machine. The aim of the project is to examine if a 3D model can be created and manufactured using only entry-level technical knowledge and ...
Álmos Kristály , Péter Ficzere
doaj   +1 more source

Using the Photostress Method to Determine the Residual Stresses

open access: yesInternational Journal of Engineering and Management Sciences, 2022
Strains and stresses in loaded and photoelastically coated structural members can be determined using the PhotoStress method. The quantitative values of variations in the principal strains (stresses) and their directions could be employed to get the ...
Hussein Alzyod, Peter Ficzere
doaj   +1 more source

Thermodynamic characteristics of a novel combination of three-start twisted tube and oval dimples

open access: yesCase Studies in Thermal Engineering, 2022
In order to further improve the heat transfer performance inside tubes, a three-start twisted tube combined with oval dimples is proposed. The effects of dimple depths on the characteristics of fluid flow and heat transfer are numerically studied.
Tao Wang   +5 more
doaj   +1 more source

Correction: Behavior of turnout sleepers in a large-scale ballast box test [PDF]

open access: yesScientific Reports
Gernot Grohs   +5 more
doaj   +2 more sources

Modelling of Stray Currents Near a Railway Platform [PDF]

open access: yes, 2017
The article describes simulations of the occurrence of stray currents in the vicinity of a SUDOPtype railway platform. Stray currents occur in the vicinity of a railway platform during the passage of a railway vehicle.
Cigánek, Jiří   +3 more
core   +1 more source

Study on Key Factors on Ride Comfort of Low-floor Light Rail Transit [PDF]

open access: yesE3S Web of Conferences
In order to meet the public’s demand for higher and higher comfort level of low-floor trams, this paper analyzes the influence on comfort level from four aspects: equivalent conicity, hinge arrangement position, suspension parameters and track geometry ...
Qiang Feng, Wu Na
doaj   +1 more source

Influence of Segmented Linings on the Micro-Pressure Wave of Tunnels

open access: yesAdvances in Civil Engineering, 2023
When the tunnel has damages such as deformation and cracking, the lining structure should be set to reinforce the tunnel. In this study, a three-dimensional numerical method is performed to study the aerodynamic effects caused by the train passing ...
Tao Li   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy