DESIGN OF THE MAGNETICALLY SENSITIVE HYDRODYNAMIC BEARING FOR THE EXPERIMENTAL ROTOR RIG

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27230%2F22%3A10251651" target="_blank" >RIV/61989100:27230/22:10251651 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989100:27740/22:10251651

Výsledek na webu

<a href="https://www.engmech.cz/improc/2022/105.pdf" target="_blank" >https://www.engmech.cz/improc/2022/105.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.21495/51-2-105" target="_blank" >10.21495/51-2-105</a>

Jazyk výsledku

angličtina

Název v původním jazyce

DESIGN OF THE MAGNETICALLY SENSITIVE HYDRODYNAMIC BEARING FOR THE EXPERIMENTAL ROTOR RIG

Popis výsledku v původním jazyce

In a hydrodynamic bearing, the relative motion between the rotating shaft and stationary housing is separated by a thin film of a lubricant. The magnetically sensitive lubricants with the promise of a semiactive control are able to improve the vibration response of the rotor system supported by the hydrodynamic bearings. A design of the magnetically sensitive hydrodynamic bearing is briefly introduced in this paper. The presented experimental rotor rig is proposed to analyse the large range of load conditions and rotational speeds of the bearing. The designed hydrodynamic bearing is intended to test the ferrofluids, magnetorheological oils, and nano-micro composite magnetic fluids. The apparent viscosity of the magnetically sensitive lubricant is altered by the magnetic field generated by the electric coil and thus the position of the bearing journal is shifted. The experimental measurement results show that the rheological behaviour of the lubrication layer with a magnetorheological fluid is significantly influenced by a magnetic field. The raising magnitude of the current in the electric coil leads to an increase in the bearing&apos;s load performance.

Název v anglickém jazyce

DESIGN OF THE MAGNETICALLY SENSITIVE HYDRODYNAMIC BEARING FOR THE EXPERIMENTAL ROTOR RIG

Popis výsledku anglicky

In a hydrodynamic bearing, the relative motion between the rotating shaft and stationary housing is separated by a thin film of a lubricant. The magnetically sensitive lubricants with the promise of a semiactive control are able to improve the vibration response of the rotor system supported by the hydrodynamic bearings. A design of the magnetically sensitive hydrodynamic bearing is briefly introduced in this paper. The presented experimental rotor rig is proposed to analyse the large range of load conditions and rotational speeds of the bearing. The designed hydrodynamic bearing is intended to test the ferrofluids, magnetorheological oils, and nano-micro composite magnetic fluids. The apparent viscosity of the magnetically sensitive lubricant is altered by the magnetic field generated by the electric coil and thus the position of the bearing journal is shifted. The experimental measurement results show that the rheological behaviour of the lubrication layer with a magnetorheological fluid is significantly influenced by a magnetic field. The raising magnitude of the current in the electric coil leads to an increase in the bearing&apos;s load performance.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20302 - Applied mechanics

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název statě ve sborníku

Engineering Mechanics 2022 : 27/28th international conference : May 9-12, 2022, Milovy, Czech Republic : book of full texts

ISBN

978-80-86246-48-2

ISSN

1805-8248

e-ISSN

—

Počet stran výsledku

4

Strana od-do

105-108

Název nakladatele

Institute of Theoretical and Applied Mechanics - Czech Academy of Sciences

Místo vydání

Praha

Místo konání akce

Milovy

Datum konání akce

9. 5. 2022

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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