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

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F20%3APU137496" target="_blank" >RIV/00216305:26210/20:PU137496 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.matec-conferences.org/articles/matecconf/abs/2020/18/matecconf_matbud2020_01049/matecconf_matbud2020_01049.html" target="_blank" >https://www.matec-conferences.org/articles/matecconf/abs/2020/18/matecconf_matbud2020_01049/matecconf_matbud2020_01049.html</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1051/matecconf/202032201049" target="_blank" >10.1051/matecconf/202032201049</a>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20201 - Electrical and electronic engineering

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2020

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

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

ISBN

978-2-7598-9108-5

ISSN

2261-236X

e-ISSN

—

Počet stran výsledku

8

Strana od-do

1-8

Název nakladatele

EDP Sciences

Místo vydání

Neuveden

Místo konání akce

Krakow

Datum konání akce

19. 10. 2020

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000631255600049