Results 21 to 30 of about 437,125 (244)
A numerical study on tread wear and fatigue damage of railway wheels subjected to anti-slip control
Tread wear and rolling contact fatigue (RCF) damage propagated on railway wheels are the two extremely important focal points as they can tremendously deteriorate wheel/rail interactions and hunting stability and destroy wheel surface materials, and ...
Yunfan Yang +3 more
doaj +1 more source
A numerical simulation of wheel wear
Abstract The conditions at the wheel/rail contact have a dramatic impact on safety, ride quality and cost of maintenance. Appreciating its importance, the US Federal Railroad Administration (FRA) initiated a project to improve both the understanding of and application of an improved wheel/rail interaction on Amtrak's Northeast Corridor.
Magel, Eric +2 more
openaire +3 more sources
In form grinding, wheel wear is given rise to public discussion in finished accuracy of workpiece. So, to make clear of the mechanism of wear phenomena at the vicinity of grinding wheel's sharpedge in V-groove grinding, the present paper describes the influence of grinding conditions upon wheel wear.
ONO, Koji, HOSHINO, Susumu
openaire +3 more sources
Influence of Axle Load on the Wear of Railway Wheel Material
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 +2 more
doaj +1 more source
FEATURES WEAR OF THE WHEEL THREAD
In practice there for more than 60 types of defects set of wheels that arise under the influence ofvarious factors , and from them , directly or indirectly dependent on traffic safety.Therefore, set of wheels, which exceed the established defects undergo repair or excluded from theinventory.
V. Ostapchuk, I.I. Fedchenko
openaire +4 more sources
Wheel-rail wear characteristics of a modern tram passing curves with small radius
The 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
Using extreme value theory to identify railcar asymmetric wheel wear and its benefit analysis
Railcar asymmetric wheel wear leads to severe wear on one wheel but mild wear on the other wheel. The consequences of the asymmetric wheel include accelerated wear, mechanical failure and downtime, and high financial penalties. Therefore, identifying the
Yu Cui +3 more
doaj +1 more source
Key Factors of the Initiation and Development of Polygonal Wear in the Wheels of a High-Speed Train
The polygonal wear of train wheels occurs commonly in rail transport and increases the wheel–rail interaction force dramatically and has a bad effect on the safety and comfort of the train. The mechanism of polygonal wear needs to be studied.
Yue Wu +4 more
doaj +1 more source
A rolling contact fatigue prediction model and a wear prediction model were established to analyze the influence of slope and speed on the rolling contact fatigue and wear of electric multiple unit (EMU) wheels on long steep slope track.
ZHOU Chen +5 more
doaj
Rapidly Solidified High‐Strength Invar 36 Prepared by Planar‐Flow Melt Spinning
The Invar 36 alloy was rapidly solidified using the planar‐flow melt‐spinning technique. Ribbon samples with thicknesses ranging from 20 to 160 mm were produced. As the grain size of the ribbon decreased to sub‐micron levels, the hardness increased by more than 2 times.
Bekir Akgül, Mehmet Kul
wiley +1 more source

