Publication detail
Investigation of the Lubricant Fluid-Flow in EHL Contact using Particle Tracking
GALAS, R. ŠPERKA, P. OMASTA, M. HARTL, M. KŘUPKA, I.
Czech title
Studium rychlostního profilu toku v EHD kontaktu metodou particle tracking
English title
Investigation of the Lubricant Fluid-Flow in EHL Contact using Particle Tracking
Type
conference paper
Language
en
Original abstract
In high loaded non-conformal contacts, lubrication is necessary to ensure low energy consumption and long durability. An elastohydrodynamic lubrication (EHL) is of great a importance in many machine elements (gears; cams, rolling element bearings etc.). During the last decades a number of experimental methods for lubricating film thickness, pressure and temperature distributions were developed; however, only a little was published about fluid-flow through EHL contact. The purpose of this paper is to present an experimental approach ena-bling through-thickness fluid flow investigation in thin-film lubricated non-conformal contacts. This approach is based on the particle tracking method with the usage of high-speed camera and the ball-on-disc tribometer. This experimental approach was already validated by the initial experiment with silver nano-flakes particles.
Czech abstract
Mazání vysoce zatížených těles s nekonformní geometrií je důležité z hlediska dosažení požadované životnosti strojních součástí a současně z hlediska snížení energetické náročnosti procesu. V praxi se jedná o součásti pracující v tzv. elastohydrodynamickém režimu mazání (ozubená kola, vačky, valivé tělesa ložisek aj.). V posledních dekádách byly publikace zaměřeny především na studium tloušťky mazacího filmu, rozložení tlaku a teploty uvnitř v kontaktu, ale jen velmi málo studií bylo věnováno problematice rychlostního profilu toku v EHD kontaktu. Cílem této studie je představit experimentální metodu pro studium rychlostního profilu toku v EHD kontaktech. Základ experimentální metody tvoří tribometr v konfiguraci ball-on-disc a vysokorychlostní kamera, pomocí které jsou sledovány nanočástice procházející EHD kontaktem. Součástí publikace jsou úvodní experimenty se stříbrnými nanočásticemi.
English abstract
In high loaded non-conformal contacts, lubrication is necessary to ensure low energy consumption and long durability. An elastohydrodynamic lubrication (EHL) is of great a importance in many machine elements (gears; cams, rolling element bearings etc.). During the last decades a number of experimental methods for lubricating film thickness, pressure and temperature distributions were developed; however, only a little was published about fluid-flow through EHL contact. The purpose of this paper is to present an experimental approach ena-bling through-thickness fluid flow investigation in thin-film lubricated non-conformal contacts. This approach is based on the particle tracking method with the usage of high-speed camera and the ball-on-disc tribometer. This experimental approach was already validated by the initial experiment with silver nano-flakes particles.
Keywords in English
EHL contact; fluid flow; particle tracking method; ball-on-disc
RIV year
2015
Released
09.09.2015
Publisher
Slovak University of Agriculture in Nitra
Location
Nitra
ISBN
978-80-552-1377-4
Book
Book of Proceedings of 56th International Conference of Machine Design Departments
Edition number
1
Pages from–to
353–356
Pages count
4
BIBTEX
@inproceedings{BUT116752,
author="Radovan {Galas} and Petr {Šperka} and Milan {Omasta} and Martin {Hartl} and Ivan {Křupka},
title="Investigation of the Lubricant Fluid-Flow in EHL Contact using Particle Tracking",
booktitle="Book of Proceedings of 56th International Conference of Machine Design Departments",
year="2015",
month="September",
pages="353--356",
publisher="Slovak University of Agriculture in Nitra",
address="Nitra",
isbn="978-80-552-1377-4"
}