Publication detail
Experimental comparison of the behavior between base oil and grease starvation based on inlet film thickness
KOŠŤÁL, D. ŠPERKA, P. KŘUPKA, I. HARTL, M.
English title
Experimental comparison of the behavior between base oil and grease starvation based on inlet film thickness
Type
journal article in Scopus
Language
en
Original abstract
This paper deals with the experimental study of an elastohydrodynamic contact under conditions of insufficient lubricant supply. Starvation level of this type of the contact may be experimentally determined based on the position of the meniscus, but this way can't determine all levels of starvation. Consequent development in the field of tribology achieved theoretical model that can determine all levels of starvation by dependency on the thickness of the lubricant film entering the contact, but it is difficult for experimental verification. The main goal of this work is an experimental study and description of the behavior of the elastohydrodynamic contact with controlled thickness of the lubricant film at the contact input. Contact was lubricated by the base oil and the grease and compared. Results were surprising because the only differences between oil and grease were observed for more viscous lubricants at thicker film layer entering to the contact.
English abstract
This paper deals with the experimental study of an elastohydrodynamic contact under conditions of insufficient lubricant supply. Starvation level of this type of the contact may be experimentally determined based on the position of the meniscus, but this way can't determine all levels of starvation. Consequent development in the field of tribology achieved theoretical model that can determine all levels of starvation by dependency on the thickness of the lubricant film entering the contact, but it is difficult for experimental verification. The main goal of this work is an experimental study and description of the behavior of the elastohydrodynamic contact with controlled thickness of the lubricant film at the contact input. Contact was lubricated by the base oil and the grease and compared. Results were surprising because the only differences between oil and grease were observed for more viscous lubricants at thicker film layer entering to the contact.
Keywords in English
Starvation, lubricant film thickness, contact area, contact track, inlet film thickness.
Released
24.03.2017
Publisher
Serbian Tribology Society
Location
Serbia
ISSN
0354-8996
Volume
2017
Number
1
Pages from–to
110–119
Pages count
10
BIBTEX
@article{BUT134390,
author="David {Košťál} and Petr {Šperka} and Ivan {Křupka} and Martin {Hartl},
title="Experimental comparison of the behavior between base oil and grease starvation based on inlet film thickness",
year="2017",
volume="2017",
number="1",
month="March",
pages="110--119",
publisher="Serbian Tribology Society",
address="Serbia",
issn="0354-8996"
}