Journal of Radio Electronics. eISSN 1684-1719. 2025. ¹4
Full text in Russian (pdf)
DOI: https://doi.org/10.30898/1684-1719.2025.4.9
EXCITATION OF ELASTIC VIBRATIONS
IN MAGNETOSTRICTION CONVERTER IN CONDITIONS
OF ORIENTATIONAL TRANSITION
V.S. Vlasov1, V.I. Shcheglov2
1Pitirim Sorokin Syktyvkar State University,
167001, Russia, Syktyvkar, Oktyabrsky prosp., 552Kotelnikov IRE RAS
125009, Russia, Moscow, Mokhovaya str., 11, b.7
The paper was received January 14, 2025.
Abstract. The task about excitation of elastic vibrations in scheme of magnetostriction converter in conditions of orientational transition is considered. It is investigated the magnetic and elastic vibrations in fields higher and lower of orientational transition. It is shown that in the case of large thickness the elastic vibrations amplitude in the field lower than orientational transition may exceed the amplitude of same vibrations by small thickness to ten and more times. On the basis of equilibrium position precession of magnetization in the field lower than orientational transition it is constructed the vector model forming elastic displacement vibrations. For interpretation elastic displacement from constant and variable fields on the basis of vector model it id constructed the formula which describes observed dependencies in the precision about 10 %. It is shown that by plate thickness more than appointed critical value, the increasing of elastic vibrations is stopped. The amplitude sharp falls and goes to small stationary value. It is found that observed phenomenon are depended from addition orientation transition of magnetization from the direction which is determines by constant field to direction along plate flatness. It is carried out of described phenomenon with traditional excitation of elastic vibrations in similar conditions. It is shown that the plate thickness increasing to 90 times and decreasing of constant field to 2.29 times allows to increase of elastic vibrations to 354,16 times with frequency decreasing to about 106 times.
Keywords: precession of magnetization, orientation transition, magnetoelastic interaction.
Financing: The work was carried out within the framework of the state assignment of the V.A. Kotelnikov Institute of Radio Engineering and Electronics of the Russian Academy of Sciences.
Corresponding author: Shcheglov Vladimir Ignatyevich, vshcheg@cplire.ru
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For citation:
Vlasov V.S., Shcheglov V.I. Excitation of elastic vibrations in magnetostriction converter in conditions of orientational transition. // Journal of Radio Electronics. – 2025. – ¹ 4. https://doi.org/10.30898/1684-1719.2025.4.9 (In Russian)