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DOI: https://doi.org/10.15407/techned2017.02.077

EXPERIMENTAL INVESTIGATION OF DYNAMIC PROCESSES IN A MAGNETIC FLUID IN AN INHOMOGENEOUS MAGNETIC FIELD OF THE ROTATING SHAFT SEAL

Journal Tekhnichna elektrodynamika
Publisher Institute of Electrodynamics National Academy of Science of Ukraine
ISSN 1607-7970 (print), 2218-1903 (online)
Issue No 2, 2017 (March/April)
Pages 77 – 82

 

Authors
А.V. Radionov1, А.А. Radionova1, А.D. Podoltsev2
1 – NPVP «Ferrohydrodynamika», str. Bolshaia Morskaia, 45/5, Nikolaev, 54030, Ukraine,
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2 – Institute of electrodynamics National Academy of Science of Ukraine,
pr. Peremohy, 56, Kyiv, 03057, Ukraine,
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Abstract

A method to determine the dynamic characteristics of the magnetic fluid in the inhomogeneous magnetic field based on the measurement of time-varying magnetic force acting on the sample with the magnetic fluid has been proposed. An experimental study of eight magnetic fluids used in rotational shaft seal has been performed. For diagnostic of magnetic fluids parameters three parameters characterized respectively the relative time-variation of the magnetic force during the studied interval, the characteristic time of change this force and its rate of change have been proposed. The numerical values of this parameters can be used to analyze the stability of the behavior of the magnetic fluid in an inhomogeneous magnetic field. References 9, figures 4, table 1.

 

Key words: magnetic fluid, seal of the rotating shaft, magnetophoresis, sedimentation stability.

 

Received:    06.09.2016
Accepted:    10.10.2016
Published:   23.03.2017

 

References

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3. Kyrylenko O.V., Podoltsev O.D., Коndratenko I.P. The method of measurement of the magnetic susceptibility and the device foe its realization. Patent of Ukraine № 102749. Bulleten No 15, 12.08.2013. (Ukr)
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9. http://www.comsol.com

 

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