"JOURNAL OF RADIO ELECTRONICS"  N 1, 2014

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The analysis of nonlinear hypersound vibrations excitation of magnetostriction transducer based on connected oscillators model in quadratic approximation

 

V. S. Vlasov 1, A. P. Ivanov 1, V. G. Shavrov 2, V. I. Shcheglov 2
 

1 Syktyvkar State University, Syktyvkar, Russia

2 Kotelínikov Institute of Radio Engineering and Electronics of RAS, Moscow, Russia

 

The paper is received on January 14, 2014

 

Abstract. In connection to microwave magnetostriction transducer the hypersound vibrations excitation in geometry of normal magnetized ferrite plate is investigated. In quadratic approximation it is obtained the system of two connected second order equations for magnetization and elastic displacement maintained nonlinear three order components which equivalent to model system of two connected oscillators. By the analysis of vibrations time development and amplitude-frequency characteristics it is found that the quadratic approximation is applicable to magnetization angle precession as 40 degree. It is shown that quadratic approximation leads to decrease of computer calculation time on two order value.

Key words: hypersound, nonlinear vibrations, magnetoelasticity.