Detail publikace

Studium chování plastického maziva v hladovějícím elastohydrodynamicky mazaném kontaktu

SVOBODA, P. KOŠŤÁL, D. KUŇÁK, J. KŘUPKA, I.

Český název

Studium chování plastického maziva v hladovějícím elastohydrodynamicky mazaném kontaktu

Anglický název

Study of grease behaviour in a starved Elastohydrodynamically lubricated contact

Typ

článek v časopise - ostatní, Jost

Jazyk

en

Originální abstrakt

This paper is an experimental study of grease lubrication in a starved elastohydrodynamic lubricated (EHL) contact. Lubricating film thickness is measured with tribological experimental device ball-on-disc using optical interferometry and high speed camera. The lubricants used were commercial greases with a various kinematic viscosities, additives and thickeners formulated for low and high-speed applications. The experiment is aimed at a comparison of results acquired by ball-on-disc device and full scale axial bearing. In addition, this paper also investigates the influence of number of the rolling elements (overrolling time) on the resulting film thickness. Experiments confirm the presence of replenishment mechanism caused by relative motion of the surfaces, which generates base oil flow into the inlet of the contact.

Český abstrakt

Experimentální studum plastických maziv v hladovějícím elastohydrodynamicky mazaném (EHD) kontaktu. Tloušťka mazacího filmu je měřena pomocí experimentálního tribometru ložiskového kontaktu s využitím optické interferometrie a vysokorychlostní kamery. Experiment je zaměřen na studium vlivu počtu valivých elementů a porovnání výsledků získaných na jednokontaktním tribometru a na modelu reálného ložiska.

Anglický abstrakt

This paper is an experimental study of grease lubrication in a starved elastohydrodynamic lubricated (EHL) contact. Lubricating film thickness is measured with tribological experimental device ball-on-disc using optical interferometry and high speed camera. The lubricants used were commercial greases with a various kinematic viscosities, additives and thickeners formulated for low and high-speed applications. The experiment is aimed at a comparison of results acquired by ball-on-disc device and full scale axial bearing. In addition, this paper also investigates the influence of number of the rolling elements (overrolling time) on the resulting film thickness. Experiments confirm the presence of replenishment mechanism caused by relative motion of the surfaces, which generates base oil flow into the inlet of the contact.

Klíčová slova česky

grease, starvation, EHD, lubrication

Klíčová slova anglicky

grease, starvation, EHD, lubrication

Rok RIV

2014

Vydáno

12.06.2014

Nakladatel

MM Science Journal

Místo

Praha

ISSN

1805-0476

Ročník

2014

Číslo

June

Strany od–do

464–469

Počet stran

6

BIBTEX


@article{BUT107874,
  author="Petr {Svoboda} and David {Košťál} and Jiří {Kuňák} and Ivan {Křupka},
  title="Study of grease behaviour in a starved Elastohydrodynamically lubricated contact",
  year="2014",
  volume="2014",
  number="June",
  month="June",
  pages="464--469",
  publisher="MM Science Journal",
  address="Praha",
  issn="1805-0476"
}