Publication detail
Obtaining the pressure spike and maximum shear stress from optical interferometry data
BIBOULET, N. ŠPERKA, P. VENNER, CH. LUBRECHT, T. KŘUPKA, I.
Czech title
Stanovení tlakové špičky a maximálního smykového napětí z dat získaných optickou interferometrií
English title
Obtaining the pressure spike and maximum shear stress from optical interferometry data
Type
journal article - other
Language
en
Original abstract
In order to predict and optimise highly loaded contact performance, accurate lubricant data is crucial. The lubricants high-pressure rheological behaviour is by far the least known parameter. However, this is the key factor to realistic modeling of non-Newtonian Elasto-Hydrodynamic lubrication. In this paper a new approach is described to extract such data from optical interferometric film thickness measurements of EHL contacts. The approach is relatively straightforward and cheap compared to out of contact rheological experiments using specialized equipment
Czech abstract
Článek shrnuje srovnání rozložení tlaku a smykových napětí v elastohydrodynamickém kontaktu získaných z numerického řešení a z experimentů. Jako základ experimentálních hodnot je použito hodnot elastické deformace třecích povrchů získaných s rozložení tloušťky mazacího filmu. Výsledkem je velmi dobrá shoda numerického a experimentálního přístupu.
English abstract
In order to predict and optimise highly loaded contact performance, accurate lubricant data is crucial. The lubricants high-pressure rheological behaviour is by far the least known parameter. However, this is the key factor to realistic modeling of non-Newtonian Elasto-Hydrodynamic lubrication. In this paper a new approach is described to extract such data from optical interferometric film thickness measurements of EHL contacts. The approach is relatively straightforward and cheap compared to out of contact rheological experiments using specialized equipment
Keywords in Czech
EHD; Optická interferometrie; tlaková špička; smykové napětí
Keywords in English
EHL; Optical interferometry; Pressure spike; Shear stress
RIV year
2013
Released
19.02.2013
Publisher
Elsevier
Location
EU
ISSN
0301-679X
Volume
65
Number
6
Pages from–to
1–7
Pages count
7
BIBTEX
@article{BUT103167,
author="Petr {Šperka} and Ivan {Křupka},
title="Obtaining the pressure spike and maximum shear stress from optical interferometry data",
year="2013",
volume="65",
number="6",
month="February",
pages="1--7",
publisher="Elsevier",
address="EU",
issn="0301-679X"
}