Publication result detail

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.

Original Title

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

English Title

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

Type

WoS Article

Original Abstract

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.

English abstract

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.

Keywords

Elastohydrodynamic lubrication; Mixed lubrication; Surface roughness; Friction

Key words in English

Elastohydrodynamic lubrication; Mixed lubrication; Surface roughness; Friction

Authors

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

RIV year

2019

Released

30.12.2018

Publisher

Elsevier

ISBN

1879-2464

Periodical

Tribology International

Volume

128

Number

1

State

United Kingdom of Great Britain and Northern Ireland

Pages from

356

Pages to

364

Pages count

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"
}

Documents

Manuscript_Revised
149251