Detail publikace
Laboratory investigation of ability of oil-based friction modifiers to control adhesion at wheel-rail interface
GALAS, R. OMASTA, M. KŘUPKA, I. HARTL, M.
Anglický název
Laboratory investigation of ability of oil-based friction modifiers to control adhesion at wheel-rail interface
Typ
článek v časopise ve Web of Science, Jimp
Jazyk
en
Originální abstrakt
In the last few years, top-of-rail friction modifiers have been designed and used in many railway systems all over the world. These adhesion enhancers are applied by either off-board or on-board system in order to achieve the intermediate level of friction and positive adhesion curve. Previous scientific effort was mainly focused on the effects of water-based friction modifier on adhesion, rolling contact fatigue, railway noise and corrugation formation. The objective of this study is to investigate the abilities of oil-based friction modifiers to control adhesion and reduce wear at wheel rail interface. For this purpose, two commercial oil-based friction modifiers were particularly utilized. A ball-on-disc tribometer was employed to investigate their traction and braking performance for various slip ratios under dry conditions.Furthermore, the effect of friction modifier amount has been studied. At the end of the performed tests, wear rate, surface damage and changes of surface topography were determined and compared to dry and oilcontaminated contact.
Anglický abstrakt
In the last few years, top-of-rail friction modifiers have been designed and used in many railway systems all over the world. These adhesion enhancers are applied by either off-board or on-board system in order to achieve the intermediate level of friction and positive adhesion curve. Previous scientific effort was mainly focused on the effects of water-based friction modifier on adhesion, rolling contact fatigue, railway noise and corrugation formation. The objective of this study is to investigate the abilities of oil-based friction modifiers to control adhesion and reduce wear at wheel rail interface. For this purpose, two commercial oil-based friction modifiers were particularly utilized. A ball-on-disc tribometer was employed to investigate their traction and braking performance for various slip ratios under dry conditions.Furthermore, the effect of friction modifier amount has been studied. At the end of the performed tests, wear rate, surface damage and changes of surface topography were determined and compared to dry and oilcontaminated contact.
Klíčová slova anglicky
Adhesion coefficient, Friction modifiers, Rail-wheel tribology, Wheel-rail adhesion.
Vydáno
15.12.2016
Nakladatel
Elsevier
Místo
Švýcarsko
ISSN
0043-1648
Ročník
368-369
Číslo
3
Strany od–do
230–238
Počet stran
9
BIBTEX
@article{BUT128491,
author="Radovan {Galas} and Milan {Omasta} and Ivan {Křupka} and Martin {Hartl},
title="Laboratory investigation of ability of oil-based friction modifiers to control adhesion at wheel-rail interface",
year="2016",
volume="368-369",
number="3",
month="December",
pages="230--238",
publisher="Elsevier",
address="Švýcarsko",
issn="0043-1648"
}