Publication detail
Qualitative Analysis of Film Thickness in Rolling EHD Contact by Fluorescence Technique
NEČAS, D. VRBKA, M. ŠPERKA, P. DRUCKMÜLLER, M. SKLÁDAL, P. ŠTARHA, P. KŘUPKA, I. HARTL, M.
Czech title
Kvalitativní analýza tloušťky filmu ve valivém EHD kontaktu s využitím fluorescenční metody
English title
Qualitative Analysis of Film Thickness in Rolling EHD Contact by Fluorescence Technique
Type
conference paper
Language
en
Original abstract
Nowadays, it is well known that tribological processes play a significant role in a daily life. The elastohydrodynamic (EHD) regime of lubrication occurs in many applications including both technical and biological points of view. During the last fifty years there was a rapid evolution in experimental methods which help to better understand friction, lubrication and wear. In this study, mercury lamp induced fluorescence is employed to qualitative assess the film thickness in rolling EHD contact created by a steel ball and glass disk. Several experiments were performed to confirm the theory that the dependence between film thickness and entrainment speed should be linear in logarithmic. The results show satisfactory agreement with this prediction, so the method is correct and suitable for further research in the area of EHD contacts. This method also allows analyzing of compliant non-reflective contacts, which will be described in the next paper.
Czech abstract
Tribologické procesy sehrávají důležitou roli v každodenním životě. Elastohydrodynamický (EHD) režim mazání nastává v mnoha aplikacích ať už z pohledu technického či biologického. V uplynulých padesáti letech došlo k výraznému posunu v oblasti experimentálních metod, které pomáhají lépe porozumět procesům tření, mazání a opotřebení. V této publikaci je popsáno využití fluorescence indukované rtuťovou lampou pro kvalitativní popis tloušťky filmu v EHD kontaktu tvořeném ocelovou kuličkou a skleněným diskem. Bylo provedeno několik experimentů za účelem ověření teorie, že závislost mezi tloušťkou filmu a unášivou rychlostí je v logaritmických souřadnicích lineární. Výsledky ukazují uspokojující shodu s teoretickým předpokladem, z čehož plyne, že metodu lze považovat za korektní a je tak vhodná pro další výzkum v oblasti EHD kontaktů. Metoda také umožňuje analyzovat poddajné a nereflektivní materiály, což bude blíže popsáno v následující publikaci.
English abstract
Nowadays, it is well known that tribological processes play a significant role in a daily life. The elastohydrodynamic (EHD) regime of lubrication occurs in many applications including both technical and biological points of view. During the last fifty years there was a rapid evolution in experimental methods which help to better understand friction, lubrication and wear. In this study, mercury lamp induced fluorescence is employed to qualitative assess the film thickness in rolling EHD contact created by a steel ball and glass disk. Several experiments were performed to confirm the theory that the dependence between film thickness and entrainment speed should be linear in logarithmic. The results show satisfactory agreement with this prediction, so the method is correct and suitable for further research in the area of EHD contacts. This method also allows analyzing of compliant non-reflective contacts, which will be described in the next paper.
Keywords in Czech
EHD, Fluorescence, Tloušťka filmu, Tribologie
Keywords in English
EHD, Fluorescence, Film Thickness, Tribology
RIV year
2014
Released
03.04.2014
Publisher
Springer International Publishing
ISBN
978-3-319-05202-1
ISSN
2195-4356
Book
Modern Methods of Construction Design
Pages from–to
615–622
Pages count
8
BIBTEX
@inproceedings{BUT115723,
author="David {Nečas} and Martin {Vrbka} and Petr {Šperka} and Miloslav {Druckmüller} and Pavel {Štarha} and Ivan {Křupka} and Martin {Hartl},
title="Qualitative Analysis of Film Thickness in Rolling EHD Contact by Fluorescence Technique",
booktitle="Modern Methods of Construction Design",
year="2014",
month="April",
pages="615--622",
publisher="Springer International Publishing",
isbn="978-3-319-05202-1",
issn="2195-4356"
}