Detail publikačního výsledku

Hydrodynamic response time of magnetorheological fluid in valve mode: an initial study

KUBÍK, M.; ŠEBESTA, K.

Originální název

Hydrodynamic response time of magnetorheological fluid in valve mode: an initial study

Anglický název

Hydrodynamic response time of magnetorheological fluid in valve mode: an initial study

Druh

Stať ve sborníku v databázi WoS či Scopus

Originální abstrakt

The transient behaviour of magnetorheological (MR) damper is a very important parameter affecting the performance of this technology in modern semi-actively controlled suspension systems. Currently, the transient behaviour of the MR damper is limited by dynamics of the MR fluid (MRF) itself. The significant part of MRF response time is a hydrodynamic response time which is connected with transient rheology and development of velocity profile in the slit gap. In this paper, the method for measuring the hydrodynamic response time of MRF operating in valve mode is presented. The hydrodynamic response time of MRF-132DG achieved value of τ90 = 0.78 ms for H = 17.5 kA/m a value of τ90 = 0.65 ms for H = 34 kA/m for given geometry of gap. The difference between model and experiment is lower in higher yield stresses of MRF.

Anglický abstrakt

The transient behaviour of magnetorheological (MR) damper is a very important parameter affecting the performance of this technology in modern semi-actively controlled suspension systems. Currently, the transient behaviour of the MR damper is limited by dynamics of the MR fluid (MRF) itself. The significant part of MRF response time is a hydrodynamic response time which is connected with transient rheology and development of velocity profile in the slit gap. In this paper, the method for measuring the hydrodynamic response time of MRF operating in valve mode is presented. The hydrodynamic response time of MRF-132DG achieved value of τ90 = 0.78 ms for H = 17.5 kA/m a value of τ90 = 0.65 ms for H = 34 kA/m for given geometry of gap. The difference between model and experiment is lower in higher yield stresses of MRF.

Klíčová slova

magnetorheological fluid

Klíčová slova v angličtině

magnetorheological fluid

Autoři

KUBÍK, M.; ŠEBESTA, K.

Rok RIV

2022

Vydáno

24.09.2021

Nakladatel

IOP Publishing

Kniha

World Symposium on Smart Materials and Applications (WSSMA 2021) 16th-18th July 2021, Bangkok, Thailand

ISSN

1757-899X

Periodikum

IOP Conference Series: Materials Science and Engineering

Svazek

1186

Číslo

1

Stát

Spojené království Velké Británie a Severního Irska

Strany od

1

Strany do

7

Strany počet

7

URL

https://iopscience.iop.org/article/10.1088/1757-899X/1186/1/012002

Plný text v Digitální knihovně

http://hdl.handle.net/11012/201778

BibTex

@inproceedings{BUT172576,
  author="Michal {Kubík} and Karel {Šebesta}",
  title="Hydrodynamic response time of magnetorheological fluid in valve mode: an initial study",
  booktitle="World Symposium on Smart Materials and Applications (WSSMA 2021) 16th-18th July 2021, Bangkok, Thailand",
  year="2021",
  journal="IOP Conference Series: Materials Science and Engineering",
  volume="1186",
  number="1",
  pages="1--7",
  publisher="IOP Publishing",
  doi="10.1088/1757-899X/1186/1/012002",
  url="https://iopscience.iop.org/article/10.1088/1757-899X/1186/1/012002"
}