Publication detail

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

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

Original Title

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

Type

journal article in Web of Science

Language

English

Original Abstract

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.

Keywords

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

Authors

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

Released

20. 10. 2020

Publisher

MDPI

ISBN

1996-1944

Periodical

Materials

Year of study

13

Number

20

State

Swiss Confederation

Pages from

1

Pages to

11

Pages count

11

URL

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

Full text in the Digital Library

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",
  issn="1996-1944",
  url="https://www.mdpi.com/1996-1944/13/20/4670"
}