Detail publikace
Stribeck Curve of Magnetorheological Fluid within Pin-on-Disc Configuration: An Experimental Investigation
ROUPEC, J. JENIŠ, F. STRECKER, Z. KUBÍK, M. MACHÁČEK, O.
Anglický název
Stribeck Curve of Magnetorheological Fluid within Pin-on-Disc Configuration: An Experimental Investigation
Typ
článek v časopise ve Web of Science, Jimp
Jazyk
en
Originální abstrakt
The paper focuses on the coefficient of friction (COF) of a magnetorheological fluid (MRF) in the wide range of working conditions across all the lubrication regimes—boundary, mixed, elastohydrodynamic (EHD), and hydrodynamic (HD) lubrication, specifically focused on the common working area of MR damper. The coefficient of friction was measured for MR fluids from Lord company with concentrations of 22, 32, and 40 vol. % of iron particles at temperatures 40 and 80 °C. The results were compared with a reference fluid, a synthetic liquid hydrocarbon PAO4 used as a carrier fluid of MRF. The results show that at boundary regime and temperature 40 °C all the fluids exhibit similar COF of 0.11–0.13. Differences can be found in the EHD regime, where the MR fluid COF is significantly higher (0.08) in comparison with PAO4 (0.04). The COF of MR fluid in the HD regime rose very steeply in comparison with PAO4. The effect of particle concentration is significant in the HD regime.
Anglický abstrakt
The paper focuses on the coefficient of friction (COF) of a magnetorheological fluid (MRF) in the wide range of working conditions across all the lubrication regimes—boundary, mixed, elastohydrodynamic (EHD), and hydrodynamic (HD) lubrication, specifically focused on the common working area of MR damper. The coefficient of friction was measured for MR fluids from Lord company with concentrations of 22, 32, and 40 vol. % of iron particles at temperatures 40 and 80 °C. The results were compared with a reference fluid, a synthetic liquid hydrocarbon PAO4 used as a carrier fluid of MRF. The results show that at boundary regime and temperature 40 °C all the fluids exhibit similar COF of 0.11–0.13. Differences can be found in the EHD regime, where the MR fluid COF is significantly higher (0.08) in comparison with PAO4 (0.04). The COF of MR fluid in the HD regime rose very steeply in comparison with PAO4. The effect of particle concentration is significant in the HD regime.
Klíčová slova anglicky
friction; Stribeck curve; magnetorheological fluid; pin on disc; MR damper; tribological performance
Vydáno
20.10.2020
Nakladatel
MDPI
ISSN
1996-1944
Ročník
13
Číslo
20
Strany od–do
1–11
Počet stran
11
BIBTEX
@article{BUT165635,
author="Jakub {Roupec} and Filip {Jeniš} and Zbyněk {Strecker} and Michal {Kubík} and Ondřej {Macháček},
title="Stribeck Curve of Magnetorheological Fluid within Pin-on-Disc Configuration: An Experimental Investigation",
year="2020",
volume="13",
number="20",
month="October",
pages="1--11",
publisher="MDPI",
issn="1996-1944"
}