Detail publikačního výsledku

Stribeck Curve of Magnetorheological Fluid within Pin-on-Disc Configuration: An Experimental Investigation

ROUPEC, J.; JENIŠ, F.; STRECKER, Z.; KUBÍK, M.; MACHÁČEK, O.

Originální název

Stribeck Curve of Magnetorheological Fluid within Pin-on-Disc Configuration: An Experimental Investigation

Anglický název

Stribeck Curve of Magnetorheological Fluid within Pin-on-Disc Configuration: An Experimental Investigation

Druh

Článek WoS

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

friction; Stribeck curve; magnetorheological fluid; pin on disc; MR damper; tribological performance

Klíčová slova v angličtině

friction; Stribeck curve; magnetorheological fluid; pin on disc; MR damper; tribological performance

Autoři

ROUPEC, J.; JENIŠ, F.; STRECKER, Z.; KUBÍK, M.; MACHÁČEK, O.

Rok RIV

2021

Vydáno

20.10.2020

Nakladatel

MDPI

ISSN

1996-1944

Periodikum

Materials

Svazek

13

Číslo

20

Stát

Švýcarská konfederace

Strany od

1

Strany do

11

Strany počet

11

URL

https://www.mdpi.com/1996-1944/13/20/4670

Plný text v Digitální knihovně

http://hdl.handle.net/11012/195585

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",
  journal="Materials",
  year="2020",
  volume="13",
  number="20",
  pages="1--11",
  doi="10.3390/ma13204670",
  url="https://www.mdpi.com/1996-1944/13/20/4670"
}

Dokumenty

materials-13-04670