Publication detail

Surface Roughness Effects under High Sliding EHL Conditions

ŠPERKA, P. KŘUPKA, I. HARTL, M.

Czech title

Efekt drsnosti povrchů za podmínek vysokých skluzů v EHL

English title

Surface Roughness Effects under High Sliding EHL Conditions

Type

journal article in Scopus

Language

en

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.

Czech abstract

Tento článek je zaměřen na drsnosti povrchu a vyvolané účinky v EHL kontakt za vysokých skluzů. Předložené výsledky ukazují, že rostoucí velikost skluzu je spojena s vysokými teplotami v EHL kontaktu.

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 in Czech

EHL, drsnost povrchu, deformace, tloušťka filmu, tepelné účinky, důlek, doplňující účinek

Keywords in English

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

Released

15.02.2016

Publisher

Japanese Society of Tribologists

Location

Japonsko

ISSN

1881-218X

Volume

11

Number

1

Pages from–to

34–39

Pages count

6

BIBTEX


@article{BUT126554,
  author="Petr {Svoboda} and Petr {Šperka} and Ivan {Křupka} and Martin {Hartl},
  title="Surface Roughness Effects under High Sliding EHL Conditions",
  year="2016",
  volume="11",
  number="1",
  month="February",
  pages="34--39",
  publisher="Japanese Society of Tribologists",
  address="Japonsko",
  issn="1881-218X"
}