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"
}