Results 51 to 60 of about 7,227,198 (175)

A Parameter-Driven Methodology of Wheel Flat Modeling for Wheel–Rail Impact Dynamics

open access: yesApplied Sciences
A wheel flat is a typical wheel defect that significantly impacts the wheel–rail system, posing substantial challenges to vehicle operation safety. In the existing literature, the wheel flat plane model does not account for the contribution of the width ...
Guangwei Zhao   +3 more
doaj   +1 more source

Research on railway vehicle performance of passing through turnouts forward at 160 km/h

open access: yes机车电传动, 2023
This paper first introduced the principle and process of modeling turnouts by the multi-body dynamics software Simpack, and then expounded the process to solve the wheel-rail contact geometric relationship in the turnout area using the trajectory method ...
LYU Xiaoyong   +4 more
doaj  

Minimization of Porosity in E11018‐G Low‐Alloyed Steel Processed by Laser Powder Directed Energy Deposition

open access: yessteel research international, Volume 97, Issue 3, Page 1369-1383, March 2026.
The processability of the E11018‐G by laser powder directed energy deposition (LP‐DED) is investigated. The effects of powder moisture, ambient humidity, and laser remelting on LP‐DED parts’ porosity are shown. A strong influence of the atomizing gas is observed.
Josu López‐López   +7 more
wiley   +1 more source

Railway wheel-flat and rail surface defect modelling and analysis by time–frequency techniques [PDF]

open access: yes, 2013
Damage to the surface of railway wheels and rails commonly occurs in most railways. If not detected, it can result in rapid deterioration and possible failure of rolling stock and infrastructure components causing higher maintenance costs.
Liang, B.   +7 more
core   +1 more source

Germ Panic and Chalice Hygiene in the Church of England, c.1895–1930

open access: yesJournal of Religious History, Volume 50, Issue 1, Page 20-37, March 2026.
The late‐Victorian medical revolution in bacteriology, and growing public awareness of hygienic standards and the danger of disease infection from germs, created alarm about the traditional Christian practice of drinking from a common cup at Holy Communion.
Andrew Atherstone
wiley   +1 more source

Grinding Management of Rail Profile Based on Abnormal Hunting of High-speed Train

open access: yes机车电传动, 2020
To study the influence of the polished depth of rail profile at the gauge angle on the low-frequency vibration of high-speed train, a group of rail profiles were obtained by interpolating between the standard CN60 profile and the measured rail profile ...
Jingwei CHEN   +3 more
doaj  

Research on Low-Frequency Swaying Mechanism of Metro Vehicles Based on Wheel-Rail Relationship

open access: yesShock and Vibration, 2020
For the worn state of the wheel, metro vehicles often suffer a serious carbody swaying issue, which causes the lateral stability of the vehicle to exceed the limit and affects the ride comfort.
Yixuan Shi   +4 more
doaj   +1 more source

Dusty Streets: The Challenge of Dust‐Borne Pollutants in Low‐Income Countries

open access: yesCLEAN – Soil, Air, Water, Volume 54, Issue 2, February 2026.
Generally, pollution impacts developed and low‐income countries (LICs) to different extents, and the disease burden due to roadway dust is not uniformly distributed across socio‐economic classes. Roadway dust materials from paved and unpaved urban and rural roads were reported to contain organic constituents which are toxic and affect public health ...
Abimbola E. Oluwalana‐Sanusi   +9 more
wiley   +1 more source

Influence of Asymmetric Rail Cant on Rail Corrugation in Metro Small-radius Curve Sections

open access: yesChengshi guidao jiaotong yanjiu
[Objective] A reasonable rail cant can improve the wheel-rail matching relationship, effectively reduce wheel-rail contact pressure and mitigate wheel-rail wear.
SUN Ping   +4 more
doaj   +1 more source

Research on Bogie Frame Lateral Instability of High-Speed Railway Vehicle

open access: yesShock and Vibration, 2018
In order to find out the reason for the bogie frame instability alarm in the high-speed railway vehicle, the influence of wheel tread profile of the unstable vehicle was investigated.
Chen Wang   +4 more
doaj   +1 more source

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