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.

Originální 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

angličtina

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.

Klíčová slova

Adhesion coefficient, Friction modifiers, Rail-wheel tribology, Wheel-rail adhesion.

Autoři

GALAS, R.; OMASTA, M.; KŘUPKA, I.; HARTL, M.

Vydáno

15. 12. 2016

Nakladatel

Elsevier

Místo

Švýcarsko

ISSN

0043-1648

Periodikum

WEAR

Ročník

368-369

Číslo

3

Stát

Švýcarská konfederace

Strany od

230

Strany do

238

Strany počet

9

URL

http://www.sciencedirect.com/science/article/pii/S0043164816303283

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",
  journal="WEAR",
  year="2016",
  volume="368-369",
  number="3",
  pages="230--238",
  doi="10.1016/j.wear.2016.09.015",
  issn="0043-1648",
  url="http://www.sciencedirect.com/science/article/pii/S0043164816303283"
}