Results 31 to 40 of about 7,548 (270)
Jixie qiangdu, 2020 Based on vehicle-track coupled dynamics and Archard wear models,the influence of different axle loads,friction coefficients and running speeds on the rail wear characteristics of small radius curve section in metro were analyzed and discussed.The results
LEI ZhenYu, WANG ZhiQiang
doaj
Contact Force Estimation in the Railway Vehicle Wheel-Rail Interface [PDF]
, 2011 Increased patronage of railways in the UK in the past 20 years has put demands on rolling stock to operate at peak availability with reduced time available for maintenance.
Ward, Christopher P. +10 more
core +1 more source
Prediction of Rail Wear Under Different Railway Track Geometries Using Artificial Neural Networks
InfrastructuresThe geometry of the railway track affects rail wear significantly. If the rail wear can be predicted and considered during the alignment design phase, the problems it causes can be mitigated at the source by optimizing the values and combinations of ...
Hong Zhang +7 more
doaj +1 more source
Modelling and simulation of dynamic wheel-rail interaction using a roller rig
, 2012 The interaction between the wheel and rail greatly influences the dynamic response of railway vehicles on the track. A roller rig facility can be used to study and monitor real time parameters that influence wheel-rail interaction such as wear, adhesion,
Gu, Fengshou +7 more
core +1 more source
Nihon Kikai Gakkai ronbunshu, 2017 In recent years, railway system is attracting attention in terms of energy efficiency and environment friendliness. Rail of railway is one of the most important elements in constructing railway system.
Masahiro TSUJIE +3 more
doaj +1 more source
A new approach for modelling mild and severe wear in wheel-rail contacts [PDF]
, 2021 This paper presents a new approach for modelling the wear in wheel-rail contacts for a wide range of test and contact conditions (material pairing, load, creep, lubrication etc.) in the mild and severe wear regimes with one set of model coefficients. The
Al-Maliki, H. +4 more
core +1 more source
Wheel-rail wear characteristics of a modern tram passing curves with small radius
Archives of TransportThe wheel-rail wear was predicted for modern trams with independently rotating wheelset running on a groove-shaped rail. The tram vehicle-track coupled dynamics model, considering the wheel-rail multi-point contact, was developed using software UM to ...
Zhongjie Zhang +5 more
doaj +1 more source
Fully 3D‐Printed Wave‐Wound Electromagnetic Motors
Advanced Materials Technologies, EarlyView.This work presents the first fully 3D‐printed wave‐wound electromagnetic motors, which are created using conductive nanoparticle inks, carbon‐filled nylon polymers, and surface mount components. These motors can achieve a stall torque of 7.62N·mmA−1$7.62 \nobreakspace N{\cdot }mm A^{-1}$ and efficiency of 28.2 %, which approaches the performance of ...
Joseph Schwalbe +4 more
wiley +1 more source
Waveguide Geometry–Driven Trade‐Offs in Resonant Cavity Sensor Performance
Advanced Optical Materials, EarlyView.Waveguide geometry governs the interplay between sensitivity, intrinsic Q‐factor, and wavelength noise in silicon nitride resonant sensors. Contrary to intuition, higher sensitivity does not ensure superior performance. Low‐noise, high‐Q ridge resonators achieve the lowest detection limits, revealing that detection is ultimately constrained by noise ...
Mohammad Talebi Khoshmehr +6 more
wiley +1 more source
Prediction of metal pm emission in rail tracks for condition monitoring application
, 2011 Exposure to particulate material (PM) is a major health concern in megacities across the world which use trains as a primary public transport. PM emissions caused by railway traffic have hardly been investigated in the past, due to their obviously minor ...
Gu, Fengshou +13 more
core +1 more source