Electronic Journal Technical Acoustics ISSN 1819-2408

D. Stepanenko, A. Yemelyanova, M. Pleskatch, N. Solodkaya

Investigation of characteristics of ultrasonic vibrations’ compound annular amplifiers by means of transfer matrix method

language: Russian

received 03.08.2018, published 12.09.2018

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ABSTRACT

The article considers application of transfer matrix method for solution of modeling and design problems of ultrasonic vibrations' compound annular amplifiers. On the basis of numerical example it is shown that there are two kinds of eigen modes of amplifier’s vibrations: 1) eigen modes with variable sign of radial vibratory displacements amplitude; 2) eigen modes with constant sign of radial vibratory displacements amplitude. Amplification of vibrations amplitude is ensured only by eigen modes of the second kind. In comparison with method based on solution of differential equations transfer matrix method is more suitable for engineers, since it doesn’t require the knowledge in the field of differential equations theory.
Key words: ultrasonic, vibrations amplification, annular amplifier, transfer matrix

11 pages, 2 figures

Сitation: D. Stepanenko, A. Yemelyanova, M. Pleskatch, N. Solodkaya. Investigation of characteristics of ultrasonic vibrations’ compound annular amplifiers by means of transfer matrix method. Electronic Journal “Technical Acoustics”, http://www.ejta.org, 2018, 2.

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		Dmitry Stepanenko, PhD, Assoc. Prof. Graduated from the Belarusian national technical university (Minsk, Republic of Belarus), Department of instrumental engineering, Instrument-making faculty in 2004. Scientific interests: applications of low-frequency ultrasound in engineering and medicine, methods of design of low-frequency ultrasonic vibratory systems. E-mail: stepd(at)tut.by
		Anna Yemelyanova, engineer on intellectual property of Elena Beliaeva, Nina Vasilieva & Partners, LTD (Minsk, Republic of Belarus). Graduated from the Belarusian national technical university (Minsk, Republic of Belarus), Department of instrumental engineering, Instrument-making faculty in 2018.
		Mariya Pleskatch, engineer of Electronmash Factory Unitary Enterprise (Minsk, Republic of Belarus). Graduated from the Belarusian national technical university (Minsk, Republic of Belarus), Department of instrumental engineering, Instrument-making faculty in 2018.
		Nadezhda Solodkaya, sales representative of SV Velor, LTD (Minsk, Republic of Belarus). Graduated from the Belarusian national technical university (Minsk, Republic of Belarus), Department of instrumental engineering, Instrument-making faculty in 2018.