Research on geometric parameter quantification of rail rolling contact fatigue crack damage based on 2D optical image [PDF]
Scientific ReportsHigh-speed railway is a comprehensive carrier of high-technology. As an important infrastructure of high - speed rail tracks, rail breakage and derailment accidents caused by rail rolling contact fatigue crack damage are quite common.
Yu Wang +3 more
doaj +2 more sources
Analysis of the abnormal wear of the pantograph contact strip through combined experimental and simulation approaches [PDF]
Scientific ReportsThe carbon contact strip of pantograph collects current from the overhead catenary to power the train, inevitably causing wear to the contact surface. This paper addresses the abnormal wear of the pantograph carbon contact strip, a challenged accident ...
Xingshuai Zhi +8 more
doaj +2 more sources
Vibration Analysis of Traction Drive System Components Based on the Field Test for High-Speed Train
Journal of Advanced Transportation, 2023 The traction drive system of a high-speed train is the key subsystem of a high-speed train, which controls the driving and braking of the train through electromechanical coupling, and determines the running speed, power quality, and comfort of the train.
Pingbo Wu +4 more
doaj +1 more source
Method for Evaluating Bolt Competitive Failure Life Under Composite Excitation
Chinese Journal of Mechanical Engineering, 2023 In this study, the competitive failure mechanism of bolt loosening and fatigue is elucidated via competitive failure tests on bolts under composite excitation.
Guangwu Yang +5 more
doaj +1 more source
Effect of Personalized Ventilation in Seat Armrest on Diffusion Characteristics of Respiratory Pollutants in Train Carriages [PDF]
Journal of Applied Fluid Mechanics, 2023 As one of the most important means of transportation, high-speed trains have a large capacity for carrying passengers. However, their narrow carriages can easily exacerbate the spread of respiratory diseases.
X. Liu, T. Li, S. Wu, J. Zhang
doaj +1 more source
Two material removal modes in chemical mechanical polishing: mechanical plowing vs. chemical bonding
Friction, 2023 With the rapid development of semiconductors, the number of materials needed to be polished sharply increases. The material properties vary significantly, posing challenges to chemical mechanical polishing (CMP).
Yuan Wu +5 more
doaj +1 more source
WIT Transactions on The Built Environment, 2014 Manufacturers and owners of rolling stock must allow for ecological aspects when conducting their activities. One of the possibilities of reducing the negative impact of rolling stock on the environment is the proper disposal of the end-of-life rolling stock.
openaire +1 more source
Analysis of design and performance of tram-train profiles for dual-operation running [PDF]
, 2017 This article explores the design of a new wheel profile which can be used in a tram-train vehicle. A tram-train is a dual-mode vehicle that operates on two very different railway infrastructures: as a tram on light rail infrastructure and as a ...
Allen, Paul +2 more
core +1 more source
Simulation of rail roughness growth on small radius curves using a non-Hertzian and non-steady wheel–rail contact model [PDF]
, 2014 A time-domain model for the prediction of long-term growth of rail roughness (corrugation) on small radius curves is presented. Both low-frequency vehicle dynamics due to curving and high-frequency vehicle–track dynamics excited by short-wavelength rail ...
Nielsen, Jens C. O. +2 more
core +1 more source
Dynanics of a vehicle-track coupling system at a rail joint [PDF]
, 2015 The dynamic behaviour at a rail joint is examined using a two-dimensional vehicle–track coupling model. The track system is described as a finite-length beam resting on a double-layer discrete viscous-elastic foundation.
Cencen Gong +5 more
core +1 more source