Publication detail

Pressure increase in elliptical impact ehl contacts with surface asperities

KŘUPKA, I. HARTL, M. KANETA, M.

Original Title

Pressure increase in elliptical impact ehl contacts with surface asperities

Type

conference paper

Language

English

Original Abstract

The phenomena which occur when a spherical steel body impacts a stationary steel plate with surface asperities are discussed through isothermal Newtonian numerical analysis using sinusoidal roughness. The ridges of the sinusoidal roughness produce large local pressures, particularly in elliptical contacts, when constant loads are imposed on the contact by impact. The pressure level is usually larger when the ridges are located along the major contact direction than along the minor contact direction, and increases as the loading speed increases. The high pressure induces a micro-groove in the ridge and the horse-shoe shaped constriction is formed at the ridges locating around the contact edge.

Keywords

Impact, Rolling Bearings, Ball Bearings

Authors

KŘUPKA, I.; HARTL, M.; KANETA, M.

RIV year

2012

Released

8. 10. 2012

Publisher

American Society of Mechanical Engineers, Tribology Division, TRIB

Location

Denver, CO; United States

ISBN

9780791845080

Book

Proceedings of the ASME/STLE 2012 International Joint Tribology Conference

Pages from

101

Pages to

102

Pages count

2

BibTex

@inproceedings{BUT123923,
  author="Ivan {Křupka} and Martin {Hartl} and Motohiro {Kaneta}",
  title="Pressure increase in elliptical impact ehl contacts with surface asperities",
  booktitle="Proceedings of the ASME/STLE 2012 International Joint Tribology Conference",
  year="2012",
  pages="101--102",
  publisher="American Society of Mechanical Engineers, Tribology Division, TRIB",
  address="Denver, CO; United States",
  doi="10.1115/IJTC2012-61072",
  isbn="9780791845080"
}