Detail publikačního výsledku

The effect of surface roughness on friction and film thickness in transition from EHL to mixed lubrication

ZAPLETAL, T.; ŠPERKA, P.; KŘUPKA, I.; HARTL, M.

Originální název

The effect of surface roughness on friction and film thickness in transition from EHL to mixed lubrication

Anglický název

The effect of surface roughness on friction and film thickness in transition from EHL to mixed lubrication

Druh

Článek WoS

Originální abstrakt

The purpose of this study is to reveal the connection between the film thickness and the friction for a uniform surface texture on transition from full film to mixed lubrication in non-conformal contacts. The current study tries to clarify the processes leading to the friction increase during the transition that is usually seen in the Stribeck curve. The transition to mixed lubrication and the friction increase are usually associated with a direct contact between surface irregularities. However, the experimental results showed that friction increases much earlier before the first contact was detected. It was revealed that a standard mixed friction modeling based on the area in a direct contact has significant limitations. Numerous possible explanations for this phenomenon are discussed.

Anglický abstrakt

The purpose of this study is to reveal the connection between the film thickness and the friction for a uniform surface texture on transition from full film to mixed lubrication in non-conformal contacts. The current study tries to clarify the processes leading to the friction increase during the transition that is usually seen in the Stribeck curve. The transition to mixed lubrication and the friction increase are usually associated with a direct contact between surface irregularities. However, the experimental results showed that friction increases much earlier before the first contact was detected. It was revealed that a standard mixed friction modeling based on the area in a direct contact has significant limitations. Numerous possible explanations for this phenomenon are discussed.

Klíčová slova

Elastohydrodynamic lubrication; Mixed lubrication; Surface roughness; Friction

Klíčová slova v angličtině

Elastohydrodynamic lubrication; Mixed lubrication; Surface roughness; Friction

Autoři

ZAPLETAL, T.; ŠPERKA, P.; KŘUPKA, I.; HARTL, M.

Rok RIV

2019

Vydáno

30.12.2018

Nakladatel

Elsevier

ISSN

1879-2464

Periodikum

Tribology International

Svazek

128

Číslo

1

Stát

Spojené království Velké Británie a Severního Irska

Strany od

356

Strany do

364

Strany počet

9

URL

https://www.sciencedirect.com/science/article/pii/S0301679X18303852

BibTex

@article{BUT149251,
  author="Tomáš {Zapletal} and Petr {Šperka} and Ivan {Křupka} and Martin {Hartl}",
  title="The effect of surface roughness on friction and film thickness in transition from EHL to mixed lubrication",
  journal="Tribology International",
  year="2018",
  volume="128",
  number="1",
  pages="356--364",
  doi="10.1016/j.triboint.2018.07.047",
  issn="0301-679X",
  url="https://www.sciencedirect.com/science/article/pii/S0301679X18303852"
}