Detail publikace

Effect of surface texturing on rolling contact fatigue within mixed lubricated non-conformal rolling/sliding contacts

VRBKA, M. ŠAMÁNEK, O. ŠPERKA, P. NÁVRAT, T. KŘUPKA, I. HARTL, M.

Originální název

Effect of surface texturing on rolling contact fatigue within mixed lubricated non-conformal rolling/sliding contacts

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

The rolling contact fatigue (RCF) life of highly loaded machine components is significantly influenced by the surface roughness features so that there is a continuous effort to design the topography of rubbing surfaces to enhance lubrication efficiency and prolong the operation of machine components. It can be suggested from the recent experimental results that lubricant emitted from shallow micro-dents could effectively lift off the real roughness features and reduce the asperities interactions within rolling/sliding mixed lubricated contacts. Thereby the additional supply of lubricant from surface features could help to reduce the risk of surface damage through the reduction of the interaction of rubbing surfaces during start-up or starvation. However, the introduction of such roughness features into the rubbing surfaces of highly loaded non-conformal contacts should consider not only the effects on lubrication film thickness but also on RCF. That is why this study is focused on the effects of surface texturing on RCF within non-conformal rolling/sliding contacts operated under mixed lubrication conditions. The principal task has been whether possible beneficial effect on film thickness is not accompanied by the reduction in RCF life. Textures with various sizes of micro-dents and their arrangement within the contacts have been considered. It has been found that results obtained with textured surfaces have exhibited no obvious reduction in RCF. Conversely, some increase in RCF using textured surfaces was observed that could be attributed to the positive contribution of micro-dents working as lubricant micro-reservoirs that reduce asperities interactions. Nevertheless, further experiments are necessary to confirm this possible beneficial contribution of surface texturing on RCF.

Klíčová slova

Mixed lubrication; Surface texturing; Rolling contact fatigue

Autoři

VRBKA, M.; ŠAMÁNEK, O.; ŠPERKA, P.; NÁVRAT, T.; KŘUPKA, I.; HARTL, M.

Rok RIV

2010

Vydáno

1. 8. 2010

Nakladatel

Elsevier

Místo

Nizozemí

ISSN

0301-679X

Periodikum

Tribology International

Ročník

43

Číslo

8

Stát

Spojené království Velké Británie a Severního Irska

Strany od

1457

Strany do

1465

Strany počet

9

URL

http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V57-4YC80X0-1&_user=640830&_coverDate=08/31/2010&_rdoc=20&_fmt=high&_orig=browse&_origin=browse&_zone=rslt_list_item&_srch=doc-info(%23toc%235779%232010%23999569991%231972701%23FLA%23display%23Volume)&_cdi=5779&_sort=d&_docanchor=&view=c&_ct=31&_acct=C000032308&_version=1&_urlVersion=0&_userid=640830&md5=108c1419edf700018a5af208e5692b22&searchtype=a

BibTex

@article{BUT50107,
  author="Martin {Vrbka} and Otakar {Šamánek} and Petr {Šperka} and Tomáš {Návrat} and Ivan {Křupka} and Martin {Hartl}",
  title="Effect of surface texturing on rolling contact fatigue within mixed lubricated non-conformal rolling/sliding contacts",
  journal="Tribology International",
  year="2010",
  volume="43",
  number="8",
  pages="1457--1465",
  issn="0301-679X",
  url="http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V57-4YC80X0-1&_user=640830&_coverDate=08/31/2010&_rdoc=20&_fmt=high&_orig=browse&_origin=browse&_zone=rslt_list_item&_srch=doc-info(%23toc%235779%232010%23999569991%231972701%23FLA%23display%23Volume)&_cdi=5779&_sort=d&_docanchor=&view=c&_ct=31&_acct=C000032308&_version=1&_urlVersion=0&_userid=640830&md5=108c1419edf700018a5af208e5692b22&searchtype=a"
}