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

