Publication detail

The magnetic circuit dynamics of a magnetorheological valve with a permanent magnet

KUBÍK, M. JENIŠ, F. HAŠLÍK,I.

Original Title

The magnetic circuit dynamics of a magnetorheological valve with a permanent magnet

Type

conference paper

Language

English

Original Abstract

The magnetorheological (MR) damper uses magnetorheological fluid which, when subjected to magnetic stimuli, generates an increase of damping forces. A significant problem of these dampers is their poor failsafe ability due to power supply interruption. In the case of faults, the damper remains in a low damping state, which is dangerous. This problem can be solved by accommodating a permanent magnet in the magnetic circuit of the damper. However, the magnetic circuit dynamic of this type of damper has rarely been studied. The main aim of this paper is to introduce the magnetic circuit dynamics of the magnetorheological damper/control valve with a permanent magnet. Firstly, the design of the magnetorheological valve with NdFe42 permanent magnet in the magnetic circuit is introduced. The response time of the magnetic field on the unit step of the control signal was calculated by transient magnetic simulation in Ansys Electronics software. The response time of the magnetic field was simulated in the range of 1.2 to 5 ms depending on the electric current magnitude and orientation. The presented MR damper was manufactured and tested. The experiments prove that the permanent magnet significantly affects the dynamics of the magnetic circuit.

Keywords

magnetorheological damper; permanent magnet

Authors

KUBÍK, M.; JENIŠ, F.; HAŠLÍK,I.

Released

14. 10. 2020

Publisher

EDP Sciences

ISBN

978-2-7598-9108-5

Book

MATBUD’2020 – Scientific-Technical Conference: E-mobility, Sustainable Materials and Technologies

ISBN

2261-236X

Periodical

MATEC Web of Conferences

Year of study

322

Number

1

State

French Republic

Pages from

1

Pages to

8

Pages count

8

URL

https://www.matec-conferences.org/articles/matecconf/abs/2020/18/matecconf_matbud2020_01049/matecconf_matbud2020_01049.html

Full text in the Digital Library

http://hdl.handle.net/11012/196392

BibTex

@inproceedings{BUT165599,
  author="KUBÍK, M. and JENIŠ, F. and HAŠLÍK,I.",
  title="The magnetic circuit dynamics of a magnetorheological valve with a permanent magnet",
  booktitle="MATBUD’2020 – Scientific-Technical Conference: E-mobility, Sustainable Materials and Technologies",
  year="2020",
  journal="MATEC Web of Conferences",
  volume="322",
  number="1",
  pages="1--8",
  publisher="EDP Sciences",
  doi="10.1051/matecconf/202032201049",
  isbn="978-2-7598-9108-5",
  issn="2261-236X",
  url="https://www.matec-conferences.org/articles/matecconf/abs/2020/18/matecconf_matbud2020_01049/matecconf_matbud2020_01049.html"
}