Numerical simulations and experimental analysis of high-speed turnout rails wear models [PDF]
Scientific ReportsThis study analyzed different contact theories and models for simulating rail wear in the turnout areas. The typical cross-sections of the high-speed turnout switch and frog areas are selected.
Jincheng Li, Min Hu, Hao Wu, Hao Zhong
doaj +2 more sources
Research on wear and grinding models of high-speed turnouts based on semi-Hertz contact [PDF]
Scientific ReportsIn order to reduce turnout rail wear, the paper establishes a coupled dynamics model and a turnout rail wear model that consider the true profile of the turnout rail, the vehicle’s continuous traction force while passing, and the operational resistance ...
Jincheng Li +4 more
doaj +2 more sources
Research on rail wear of small radius curve in EMU depot [PDF]
Railway Sciences, 2022 Purpose – With the help of multi-body dynamics software UM, the paper uses Kik–Piotrowski model to simulate wheel-rail contact and Archard wear model for rail wear.
Hao Li, Jialin Sun, Guotang Zhao
doaj +1 more source
Study on wear characteristics and authorized limits of switch rails of high-speed turnout [PDF]
Railway Sciences, 2023 Purpose – It is quite universal for high-speed turnouts to be exposed to the wear of the stock rail of the switch rail during the service process. The wear will cause the change of railhead profile and the relative positions of the switch rail and the ...
Pu Wang +4 more
doaj +1 more source
Effect of Structural Flexibility of Wheelset/Track on Rail Wear
Lubricants, 2023 To investigate the influence of the structural deformation of the wheelset and track on rail wear in the longitudinal and lateral directions, a rail wear prediction model is established that can calculate the three-dimensional distribution of rail wear ...
Bingguang Wen +4 more
doaj +1 more source
A Fast Rail Profile Point Cloud Matching Algorithm Based on Overlay Weight ICP
Kongzhi Yu Xinxi Jishu, 2023 The factors that affect rail's performance and quality mainly include fractures, abrasion, scratches, wear, etc. Among them, wear directly changes the profile of the rails.
ZUO Wei, LI Jianfeng, LUO Zihe
doaj +3 more sources
Applied Sciences, 2023 A wear prediction model is built to research the wear of the curved switch rail in a high-speed turnout. The Archard wear model is used in the wear prediction model to analyze the profile evolution law.
Shuo Yan +4 more
doaj +1 more source
Typical wheel–rail profile change rules and matching characteristics of high speed railway in China [PDF]
Railway Sciences, 2022 Purpose – In order to systematically grasp the changes and matching characteristics of wheel and rail profiles of high speed railway (HSR) in China, 172 rail profile measurement points and 384 wheels of 6 high-speed electric motive unites (EMUs) were ...
Maorui Hou, Fengshou Liu, Xiaoyi Hu
doaj +1 more source
Data Analysis to Study Sub-threshold Delays Incurred by Tyne and Wear Metro Trains
Urban Rail Transit, 2020 The performance of Tyne and Wear Metro system in the UK is measured on a headway basis, and gaps in service that are 4 min or more in excess of scheduled gaps are investigated and the cause documented.
Daniel Screen +4 more
doaj +1 more source
Rail Wear Evolution on Small-Radius Curves under Mixed Traffic Conditions, In-Field Investigations
Applied Sciences, 2023 This paper’s aim is to assess the rail wear evolution of railway tracks under mixed traffic conditions for sharp curves. Field investigations were conducted over a period of five years, at 800 points on a rail track, for two curves that underwent ...
Madalina Ciotlaus +5 more
doaj +1 more source