Results 71 to 80 of about 7,227,198 (175)

Low adhesion detection and identification in a railway vehicle system using traction motor behaviour [PDF]

open access: yes
It is important to monitor the wheel-rail friction coefficient in railway vehicles to improve their traction and braking performance as well as to reduce the number of incidents caused by low friction. Model based fault detection and identification (FDI)
Zhao, Yunshi
core   +3 more sources

Differences in Wheel Service Performance of Vehicles With Internal and External Axleboxes Considering Wheel-Axle Bending

open access: yesIEEE Access
Based on the relative position of the axlebox to the wheel, rail vehicles can be categorized into vehicles with internal axleboxes and those with external axleboxes. This study investigates the bending patterns of axles under different loading conditions
Tao Guo   +4 more
doaj   +1 more source

Research on the mechanism of metro wheel high-order polygons affecting sound pressure level [PDF]

open access: yesMechanical Sciences
This paper analyses the effects of several typical polygon amplitudes and orders on wheel sound radiation in metro lines using the finite-element method (FEM) and the boundary element method (BEM).
Y. Cao, J. Tian
doaj   +1 more source

Effect of Wear on Wheel/rail Normal Contact Relationship [PDF]

open access: yesProceedings of the 7th International Conference on Management, Education, Information and Control (MEICI 2017), 2017
Farong Kou, Yijia Wang
openaire   +1 more source

A framework for wheel profile wear prediction of high-speed trains considering tread modification

open access: yesFriction
Tread modification has gained significant attention in recent years as a means to address the issue of wheel hollow wear. The wear resulting from tread modification can alter the wheel profile, thereby impacting the wheel–rail contact relationship and ...
Yuchen Xie   +6 more
doaj   +1 more source

The wear resistance research of the rail contact surface depending on the grinding process

open access: yesMechanics and Advanced Technologies, 2019
Background. Continuous mechanical loads on the rails during its contact with the wheel lead to an accumulation of residual stresses in the surface layers of the rails, resulting in fast-growing fatigue cracks.
Pavlo Protsenko   +5 more
doaj   +1 more source

An innovative small-scale testing procedure to study damage in shoe-braked wheels

open access: yes, 2022
The diffusion of the brake-shoe system led to the request to study brake-wheel-rail interaction. This study aims to deepen this topic with an innovative small-scale test rig, called "4-contact machine". Suited test procedures were designed.
Angelo Mazzù   +5 more
core   +1 more source

Comparison of Non-elliptic Contact Models : Towards Fast and Accurate Modelling of Wheel-Rail Contact

open access: yes, 2012
The demand to investigate and predict the surface deterioration phenomenain the wheel-rail interface necessitates fast and accurate contact modelling.During the past twenty years, there have been attempts to determine more realisticcontact patch and ...
S. Sichani, Matin   +2 more
core   +2 more sources

Cause Analysis and Optimization of Subway Vehicles Lateral Stability Exceedance

open access: yesChengshi guidao jiaotong yanjiu
ObjectiveRail profile wear and wheel condition degradation during subway operation can lead to changes in the wheel-rail contact relationship, then resulting in obvious abnormal vehicle sway. This not only compromises ride comfort but also poses a latent
Qingwei SONG   +5 more
doaj   +1 more source

Multi-objective Optimization of a Rail Profile on Curves for A Mixed Passenger and Freight Railway

open access: yes工程科学与技术
ObjectiveThe mixed passenger and freight railway operates EMUs, locomotives, freight trains, and ordinary passenger trains. Different wheel profiles run on the same line, which results in a complex wheel-rail matching relationship.
NA Tong   +5 more
doaj  

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