Detail publikačního výsledku

Assessing the Performance of TOR Lubricants in Humid Environments and Under Dew Conditions

SKURKA, Š.; GALAS, R.; OMASTA, M.; DING, H.; WANG, W.; KŘUPKA, I.; HARTL, M.

Originální název

Assessing the Performance of TOR Lubricants in Humid Environments and Under Dew Conditions

Anglický název

Assessing the Performance of TOR Lubricants in Humid Environments and Under Dew Conditions

Druh

Článek WoS

Originální abstrakt

Top-of-rail (TOR) lubricants are commonly used for friction control in railway operations. They aim to lower friction and reduce noise and wear while ensuring sufficient transmission of traction/braking forces. However, the wheel-rail interface is an open system, so the conditions may suddenly change due to the weather, and different contaminants may enter the contact and influence the performance of these lubricants. Thus, this study examined the effect of humidity and dew on two commercial products, as these conditions often occur on the track. A methodology based on a creep curves measurement approach was used to assess product performance under various scenarios. All measurements were conducted on a universal tribometer in the ball-on-disc configuration covered with a climate chamber. The results show a strong influence of dew on the tested products, as dew lowered their performance parameters and caused low adhesion problems. Possible mechanisms of water-oil interaction and formation of oxidic third body layers were discussed. The main findings indicate that TOR lubricants may cause traction/braking problems if used in dew conditions. The present study may be helpful in optimising friction management methods in the future.

Anglický abstrakt

Top-of-rail (TOR) lubricants are commonly used for friction control in railway operations. They aim to lower friction and reduce noise and wear while ensuring sufficient transmission of traction/braking forces. However, the wheel-rail interface is an open system, so the conditions may suddenly change due to the weather, and different contaminants may enter the contact and influence the performance of these lubricants. Thus, this study examined the effect of humidity and dew on two commercial products, as these conditions often occur on the track. A methodology based on a creep curves measurement approach was used to assess product performance under various scenarios. All measurements were conducted on a universal tribometer in the ball-on-disc configuration covered with a climate chamber. The results show a strong influence of dew on the tested products, as dew lowered their performance parameters and caused low adhesion problems. Possible mechanisms of water-oil interaction and formation of oxidic third body layers were discussed. The main findings indicate that TOR lubricants may cause traction/braking problems if used in dew conditions. The present study may be helpful in optimising friction management methods in the future.

Klíčová slova

Wheel-rail tribology; Friction modification; Humidity; TOR lubricants; Dew; Contamination

Klíčová slova v angličtině

Wheel-rail tribology; Friction modification; Humidity; TOR lubricants; Dew; Contamination

Autoři

SKURKA, Š.; GALAS, R.; OMASTA, M.; DING, H.; WANG, W.; KŘUPKA, I.; HARTL, M.

Rok RIV

2025

Vydáno

16.07.2024

Nakladatel

Springer Nature

Místo

NEW YORK

ISSN

1023-8883

Periodikum

TRIBOLOGY LETTERS

Svazek

72

Číslo

3

Stát

Spojené státy americké

Strany od

72

Strany do

90

Strany počet

19

URL

https://link.springer.com/article/10.1007/s11249-024-01889-7

Plný text v Digitální knihovně

http://hdl.handle.net/11012/249976

BibTex

@article{BUT191138,
  author="Šimon {Skurka} and Radovan {Galas} and Milan {Omasta} and Haohao {Ding} and Wenjian {Wang} and Ivan {Křupka} and Martin {Hartl}",
  title="Assessing the Performance of TOR Lubricants in Humid Environments and Under Dew Conditions",
  journal="TRIBOLOGY LETTERS",
  year="2024",
  volume="72",
  number="3",
  pages="72--90",
  doi="10.1007/s11249-024-01889-7",
  issn="1023-8883",
  url="https://link.springer.com/article/10.1007/s11249-024-01889-7"
}

Dokumenty

s11249-024-01889-7