Publication result detail

Effects of Loading Process and Contact Shape on Point Impact Elastohydrodynamics

KANETA, M.; KŘUPKA, I.; HARTL, M.

Original Title

Effects of Loading Process and Contact Shape on Point Impact Elastohydrodynamics

English Title

Effects of Loading Process and Contact Shape on Point Impact Elastohydrodynamics

Type

Peer-reviewed article not indexed in WoS or Scopus

Original Abstract

The squeeze effect is an important subject in studies of elastohydrodynamic lubrication (EHL). By impact loading, the oil between point contact surfaces is entrapped at the central region or the peripheral region depending on the initial conditions. The effects of the loading process, surface roughness, and ellipticity ratio of contacts on the film thickness and pressure distributions are not fully understood yet. In the current study, those effects are elucidated through numerical analyses by specified initial impact gaps, which produce the central or the peripheral oil entrapments. The loading process, which can produce rather low pressure, has been proposed. Moreover, conditions, under which a microdimple is produced in the central circular bump are clarified.

English abstract

The squeeze effect is an important subject in studies of elastohydrodynamic lubrication (EHL). By impact loading, the oil between point contact surfaces is entrapped at the central region or the peripheral region depending on the initial conditions. The effects of the loading process, surface roughness, and ellipticity ratio of contacts on the film thickness and pressure distributions are not fully understood yet. In the current study, those effects are elucidated through numerical analyses by specified initial impact gaps, which produce the central or the peripheral oil entrapments. The loading process, which can produce rather low pressure, has been proposed. Moreover, conditions, under which a microdimple is produced in the central circular bump are clarified.

Keywords

elastohydrodynamics; impact load; microdimple; surface asperity

Key words in English

elastohydrodynamics; impact load; microdimple; surface asperity

Authors

KANETA, M.; KŘUPKA, I.; HARTL, M.

RIV year

2013

Released

16.11.2012

Publisher

Taylor & Francis

Location

USA

ISBN

1040-2004

Periodical

TRIBOLOGY TRANSACTIONS

Volume

55

Number

6

State

United States of America

Pages from

772

Pages to

781

Pages count

10

BibTex

@article{BUT96706,
  author="Motohiro {Kaneta} and Ivan {Křupka} and Martin {Hartl}",
  title="Effects of Loading Process and Contact Shape on Point Impact Elastohydrodynamics",
  journal="TRIBOLOGY TRANSACTIONS",
  year="2012",
  volume="55",
  number="6",
  pages="772--781",
  issn="1040-2004"
}