THE EXPERIMENTAL INVESTIGATION OF AMPLITUDE – FREQUENCES CHARACTERISTICS OF CURRENT–CARRYING ELECTROCONDUCTING AND FERROMAGNETIC PLATES IN THE DIRECT MAGNETIC FIELD
Abstract
The bending waves of forced vibration of electro conducting and ferromagnetic cantilever
plates in direct magnetic field experimentally was considered. It is experimentally obtained,
that for the current–carrying plates the character of change of frequency is essentially different
from analogical change of the same characteristics for the plate, where the currents is absent.
For the cantilever plates the stability, depending from the influence of the magnetic field (MF)
and from the quantity of the current and frequency of the forced vibration was investigated.
The experiments showed, that for the plate placed in a longitudinal field, the increase of
the magnetic field brings to the increase of the proper noun frequency. For the plate placed
across the field, the increase of the magnetic field brings to the decrease of the proper noun
frequency, consequently to the loss of stability too. For the plate comparatively with the middle
thickness the extremely character depending on the vibration frequency takes place. The point
of minimum exists. The extremely character depending on “frequency – length of wave MF” is
also showed. It is also necessary to indicate that the character of change of frequency is
dependent from the current, for ferromagnetic plates are essentially different from analogical
dependents for non ferromagnetic current–carrying plates. The obtaining results one can
opplicate in different regin sphere of the life. Particulary the results may be use in electrical
machins, in communicatron, computers, flying machins.
References
principe of plate sections. Proceedings of vibration problems. vol.3. N4. 1962, pp.225-
243.
2. Kaliski S. The problem of parametric magnetoelastic resonance for a perfect conductor.
Proceedings of vibration problems. vol.1. N9. 1968, pp.79-88.
3. Moon F.G., Pao Yin–Hsing, Magnetoelastic Bukling of a Thin Plate. Int. J. Applied
Mechanics, vol.37, N1, 1970, pp.160-166.
4. Moon F.G., Pao Yin–Hsing, Vibration and Dynamic instability of a bean–plate in a
transverse magnetic field. Int. J. Applied Mechanics, vol.36, N1, 1969, pp.98-108.
5. Moon F.G. The Mechanics of Ferroelastic plates in a Uniform Magnetic Field. Int. J.
Applied Mechanics, vol.36, N1, 1970, pp.160-166.
6. Ambartsumyan S.A., Baghdasaryan G.Y. Current–carrying plates and shells in Magnetic
Field. M.: Fizimatgiz, 1966, 287p.
7. Baghdasaryan G.Y., Belubekyan M.V. Vibration and Stability current–carrying plates in
transverse magnetic field. DAN Arm SSR, vol.52, N5, 1973, pp.41-47.
8. Kazaryan K.B. Magnetoelastic Stability current–carrying Beams Platons and Cylindrical
shells. Doctor dissertation. 1994, 239p.
9. Bagdoev A.G., Vantsyan A.A. Theoretical and experimental investigations of waves in
plate in magnetic field for space and averaged problems. Int. J. Solids and Structures,
2002, vol.39, N1, pp.251-259.10. Vantsyan A.A. Experimental investigations of the influence of direct magnetic field on
the Vibration of Ferromagnetic Plates. Procc. NAS AR Mechanics. vol.56, N2, 2003.
pp.74-80.
11. Vantsyan A.A. Magnetoelastic forced and free vibrations of ferromagnetic plates in
direct transverse or longitudinal electromagnetic fields. J. Tech. Phys., 2004, 45, 3,
pp.237-241.
12. Vantsyan A.A. The influence of Electromagnetic Field and Anisotropic Properties of
Media on Dynamic Phenomena in Continuous Media. Yerevan, Procc. “Gitutiun” NAS
AR. 224p.
13. Baghdasaryan G.Y. Vibrations and Stability of Magnetoelastic Systems. Yerevan, 1999,
435p.
14. Knoepfel H. Pulsed High Magnetic Fields. London, 1970, 392p
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