Publication result detail

Surface Roughness Effects under High Sliding EHL Conditions

ŠPERKA, P.; KŘUPKA, I.; HARTL, M.

Original Title

Surface Roughness Effects under High Sliding EHL Conditions

English Title

Surface Roughness Effects under High Sliding EHL Conditions

Type

Scopus Article

Original Abstract

This paper is focused on the roughness induced effects in EHL contact under high sliding conditions when thermal effects can be expected. High sliding conditions include both the case when both surfaces are moving in the same direction and that when they move in the opposite directions. The presented results show that increasing magnitude of sliding connected with high in-contact temperatures has almost no effect on roughness deformation until the dimple phenomenon occur. The observations of film variations evolution, caused by roughness pass (complementary effect), can give information about flow processes in an EHL contact under dimple phenomenon conditions. Essentially different behavior was observed in a classic EHL contact and in a contact when dimple phenomenon has occurred.

English abstract

This paper is focused on the roughness induced effects in EHL contact under high sliding conditions when thermal effects can be expected. High sliding conditions include both the case when both surfaces are moving in the same direction and that when they move in the opposite directions. The presented results show that increasing magnitude of sliding connected with high in-contact temperatures has almost no effect on roughness deformation until the dimple phenomenon occur. The observations of film variations evolution, caused by roughness pass (complementary effect), can give information about flow processes in an EHL contact under dimple phenomenon conditions. Essentially different behavior was observed in a classic EHL contact and in a contact when dimple phenomenon has occurred.

Keywords

EHL, surface roughness, deformation, film thickness, thermal effects, dimple, complementary effect

Key words in English

EHL, surface roughness, deformation, film thickness, thermal effects, dimple, complementary effect

Authors

ŠPERKA, P.; KŘUPKA, I.; HARTL, M.

RIV year

2017

Released

15.02.2016

Publisher

Japanese Society of Tribologists

Location

Japonsko

ISBN

1881-218X

Periodical

Tribology Online

Volume

11

Number

1

State

Japan

Pages from

34

Pages to

39

Pages count

6

BibTex

@article{BUT126554,
  author="Petr {Šperka} and Ivan {Křupka} and Martin {Hartl}",
  title="Surface Roughness Effects under High Sliding EHL Conditions",
  journal="Tribology Online",
  year="2016",
  volume="11",
  number="1",
  pages="34--39",
  doi="10.2474/trol.11.34",
  issn="1881-218X"
}