Results 51 to 60 of about 446,614 (267)

Analysis of Wheel Wear and Wheel-Rail Dynamic Characteristics of High-Speed Trains under Braking Conditions

Shock and Vibration
When high-speed trains operate under braking conditions, the wheel-rail interaction increases significantly, which can lead to more serious wear problems.
Rui Song, Chenxu Lu, Lixia Sun, Zhongkai Zhang, Dilai Chen, Gang Shen   +5 more
doaj   +1 more source

Effects of rail materials and axle loads on the wear behavior of wheel/rail steels

Advances in Mechanical Engineering, 2016
Four kinds of rail steels were tested to investigate the wear behaviors of wheel–rail materials under three kinds of axle loads. Results indicate that the increase in axle load not only significantly enlarges the wear loss but also enlarges the depth and
Jihua Liu, Wenjuan Jiang, Shuiyou Chen, Qiyue Liu   +3 more
doaj   +1 more source

Rolling contact fatigue (RCF) defects of rails in Japanese railways and its mitigation strategies

Electronic Journal of Structural Engineering, 2013
Rail is the one of the most important materials to support and guide railway vehicles safely and smoothly. Since rail sufferes from various interacting forces and environmental atmosphere, wear and fatigue pose large problems with wheel and rail. Hence,
Makoto ISHIDA
doaj   +1 more source

Digital documentation of railway tunnel inspection in Austria

Civil Engineering Design, Volume 7, Issue 1, Page 3-8, March 2025.
Abstract Infrastructure, especially railway tunnels, require continuous inspection to ensure their safety. Furthermore, the detection of damages at an early stage can improve their service life. These tasks represent a major challenge for those involved and the tunnel down time is a disruption in operation.
Matthias J. Rebhan, Stefan S. Grubinger, Andreas Schüppel, Simona Deutinger, Gernot Schwarzenberger   +4 more
wiley   +1 more source

An Ultra‐Low‐Power Biopotential Acquisition Analog Front‐End Chip for Wearable Devices

International Journal of Circuit Theory and Applications, EarlyView.
A 0.8‐V, 1.2‐μW biopotential AFE combines a chopper‐stabilized CCIA with dual‐time‐scale EDO management. The slow DSL preserves > 1 GΩ input impedance, whereas an event‐triggered fast‐recovery path shortens return to the linear range after abrupt electrode‐offset disturbances. ABSTRACT A 0.8‐V, 1.2‐μW biopotential analog front‐end (AFE) IC is presented
Zhang Xin, Yang Tianqi, Xu Wei, Wang Shun, Xiaoxi Ma   +4 more
wiley   +1 more source

Research on wear and grinding models of high-speed turnouts based on semi-Hertz contact

Scientific Reports
In 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, Yayun Qi, Pengpeng Wu, Junjun Ding, Haohao Ding   +4 more
doaj   +1 more source

Influence of Axle Load on the Wear of Railway Wheel Material

Modelling and Simulation in Engineering, 2023
This study investigated the influence of axle load on the wear rate of railway wheel material. Excessive wear of wheel/rail materials and reduced service life of the wheel/rail system might be caused by the increase in axle load and traffic volume.
Hewan Getachew Yenealem, Daniel T. Redda, Awel Mohammedseid   +2 more
doaj   +1 more source

Strengthening urban resilience in China through underground infrastructures management: Addressing global climate challenges with technological solutions

Deep Underground Science and Engineering, EarlyView.
This paper explores how climate‐resilient technologies, such as smart grids, digital twins, and self‐healing materials, can enhance urban resilience. It highlights the urgent need for proactive planning, public‐private collaboration, and data‐driven innovation to future‐proof underground infrastructure amid accelerating climate and urban pressures ...
Kai Chen Goh, Tonni Agustiono Kurniawan, Christia Meidiana, Abdelkader Anouzla, Faissal Aziz, Imran Ali, Joan Cecilia C. Casila, M. Imran Khan, Dongdong Zhang, Meihui Jiang, Mohd Hafiz Dzarfan Othman, Md Munir Hayet Khan, Kasun Kumara Dissanayake   +12 more
wiley   +1 more source

Risk factors for horse falls in British jump racing (2010–2023)

Equine Veterinary Journal, EarlyView.
Abstract Background Horse falls are an important safety and welfare concern in jump racing, as they are associated with an increased risk of equine fatality and injury, as well as jockey injury. Objectives To identify risk factors for horse falls in British jump racing. Study Design Retrospective cohort.
S. E. Allen, S. Taylor, J. Given, K. L. P. Verheyen   +3 more
wiley   +1 more source

Application of Stray Magnetic Field for Monitoring the Wear Degree in Steel Components of the Lift Guide Rail System

Metals, 2020
This paper presents the results of forced wear simulation of the friction lift guide rails. The forced wear in the case discussed is an effect of plastic strain of the guide rail surface due to emergency braking of the lift.
Poul Lonkwic, Tomasz Krakowski, Hubert Ruta   +2 more
doaj   +1 more source