RESONANCE OF VIBROIMPACT SYSTEMS

Details

Parent Category: Geo-Technical Mechanics, 2015

Category: Geo-Technical Mechanics, 2015, Issue 121

UDC 534-752.001.57

Shevchenko G.A., D. Sc. (Tech.), Senior Researcher,

Shevchenko V.G., D. Sc. (Tech.), Senior Researcher,

Shliakhova M.O., Doctoral Student,

Lebed G.B., M.S (Tech.) (IGTM NAS of Ukraine)

Abstract.

The vibration system with one-sided limit stop when the shock vibrations are not defined field resonances. Research carried out by the example of resonance oscillations vibroimpact oscillator as the simplest model in the hierarchy of such systems. The studies were conducted at the natural frequency of the linear generator system to select the gaps in the travel stops and vibroimpact excitation of vibrations of the source of ideal and limited power. It was found that the region of the parameters of the resonance of vibroimpact system generates a linear system to a breakdown of vibroimpact oscillation is resonant region. Research results vibroimpact oscillator with limited excitation source coincide with the results of such an oscillator with an ideal source, which indicates the adequacy of models.

Keywords:

vibroimpact system, vibrations, resonance, perfect and limited sources of excitation.

References:

1. Shevchenko, G.A., Shevchenko, V.G. and Kadyrov, A.R. (2009), “Polyfrequency screens for separation of subtle granular materials”, Zbagachennja korisnih kopalin, no. 38 (79), pp. 44-50.

2. Shevchenko, G.A., Bobyljov, A.A. and Ishhuk, M.A. (2010), “Justification of sieves oscillations parameters of polyfrequency vibrating screens”, Naukovij vіsnik Nacіonal’nogo gіrnichogo unіversitetu, no. 5, pp. 64-71.

3. Shevchenko, G.A., Shevchenko, V.G. and Bobyljov, A.A. (2013), “Vibrating screens with polyfrequency fluctuations of screening surfaces for thin separation”, Coal of Ukraine, no. 2 (674), pp. 23-27.

4. Blekhman, I.I. (1979), Vibratsii v tekhnike. Tom 2. Kolebaniya nelineynykh mekhanicheskikh sistem [Vibrations in technics. Vol. 2. Oscillations of nonlinear mechanical systems], in Chelomey, V.N. (ed.), Mashinostroyeniye, Moscow, USSR.

5. Shevchenko, G.A., Bobyljov, A.A. and Ishhuk, M.A. (2012), “Investigation of fluctuations vibro-impact oscillator”, Vіbracії v tehnіcі ta tehnologіjah, no. 1 (65), pp. 56-59.

About the authors:

Shevchenko Georgiy Aleksandrovich, Doctor of Technical Sciences (D. Sc.), Senior Researcher, Head of laboratory of Vibratory processing of mineral raw materials, N.S. Polyakov Institute of Geotechnical Mechanics under the National Academy of Science of Ukraine (IGTM, NASU), Dnepropetrovsk, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

Shevchenko Vladimir Georgiyevich, Doctor of Technical Sciences (D. Sc), Senior Researcher, Scientific Secretary of the Institute, N.S. Polyakov Institute of Geotechnical Mechanics under the National Academy of Sciences of Ukraine (IGTM, NASU), Dnepropetrovsk, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

Sliakhova Mariia Aleksandrovna, Doctoral Student, Junior Researcher in Department of Geodynamic Systems and Vibration Technology, N.S. Polyakov Institute of Geotechnical Mechanics under the National Academy of Science of Ukraine (IGTM, NASU), Dnepropetrovsk, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

Lebed Gennady Borisovich, Senior Design Engineer, N.S. Polyakov Institute of Geotechnical Mechanics under the National Academy of Science of Ukraine (IGTM, NASU), Dnepropetrovsk, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

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