Dynamics of vibrating machines starting with unbalanced drive in case of bearing body flat vibrations

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M.P. Yaroshevich, Dr. Sci. (Tech.), Professor, Lutsk National Technical University, Head of the Department of Timber Industry Equipment and Theory of Machine Parts and Mechanisms, Theory of Machine Parts and Mechanisms, Lutsk, Ukraine.

I.P. Zabrodets, Lutsk National Technical University, postgraduate student, Lutsk, Ukraine.

T.S. Yaroshevich, Cand. Sci. (Tech.), Associate Professor, Lutsk National Technical University, of the Department of Timber Industry Equipment and Theory of Machine Parts and Mechanisms, Theory of Machine Parts and Mechanisms, Lutsk, Ukraine.


Purpose. Improvement of dynamic and power descriptions of the vibration machines with inertia vibration exciters.

Methodology. The vibration mechanics approaches and motions direct division method were used for analytical researches. The vibromachines running processes were designed using the numeral integration of mechanical vibration system motion equalizations and the electromagnetic transients equalizations in asynchronous electric motors in the Maple software environment.

Findings. Expressions for vibration moments (additional dynamic loading caused by the bearing body’s vibrations) during the resonant zone passage by vibration machines with the bearing body flat vibrations both with one arbitrarily located vibration exciter and with two self-synchronization vibration exciters for the different starting modes have been received in an analytical form. The running process improvement possibilities of vibration machines with unbalanced vibration exciters were demonstrated by using the “double” (in case of one vibration exciter) and “separate” (in case of two vibration exciters) electric motors starting methods. The first method bases on using semi-slow vibrations arising in the resonant zone, and that in the engine-off case in this zone, the vibratory torque acting on its rotor becomes rotating. The conditions when the separate starting is effective were shown. The conclusions and practical recommendations that allow facilitating vibration machines with an unbalanced drive starting were drawn.

Originality. Theoretical positions of vibration machines with unbalanced vibration exciters running dynamics that are operated by the asynchronous electric motors with limited power received further development.

Practical value. The results of the research allow us to decrease the working body resonant vibrations of vibration machines, dynamic loading on the electric motor rotor and machine construction elements, electric drive necessary power, and currents inrush.


  1. Blekhman, I.I. (2013), Teoriya vibratsyonnykh protsessov i ustroystv. Vibratsyonnaya mekhanika i vibratsyonnaya tekhnika [Theory of Vibration Processes and Devices. Vibration Mechanics and Vibration Technology], ID Ruda i Metally, St. Petersburg, Russia.

Блехман И.И. Теория вибрационных процессов и устройств. Вибрационная механика и вибрационная техника / Блехман И.И. – СПб.: ИД «Руда и Металлы», 2013. – 640с.

  1. Blekhman, I.I., Indeitsev, D.A. and Fradkov, A.L. (2008), “Slow motions in systems with inertial excitation of vibrations”, Journal of Machinery Manufacture and Reliability, no. 1, рр. 2127.

  2. Blekhman, I.I. (2000), Vibrational Mechanics, World Scientific, Singapore.

  3. Li Y., Li H., Wei X. and Wen B. (2014), Self-synchronization theory of a vibrating system with a two-stage vibration isolation frame driven by two motors Zhendong yu Chongji, Dongbei Daxue Xuebao”, Journal of Northeastern University, Vol. 35, рр. 836–840.

  4. Zhang X., Wen B. and Zhao C.  (2014), “Vibratory synchronization and coupling dynamic characteristics of multiple unbalanced rotors on a mass-spring rigid base”, Journal of Mechanical Science and Technology, Vol. 28, рр. 249–258.

  5. Franchuk, V.P. and Savluk, N.V. (2004), Applying of self-synchronisation in mountain vibration machines, Vibratsyi v technike i tekhnologii, no. 1(33), pp. 1214.

Франчук В.П. Использование самосинхронизации в горных вибрационных машинах / В.П.Франчук, С.В.Савлук // Вибрации в технике и технологиях. – 2004. – №1 (33). – С.1214.

  1. Beletskiy, V., Indeytsev, D. and Fradkov, A. (2009), Nelineynye problem teorii kolebaniy i teorii upravleniya. Vibratsyonnaya mekhanika [Nonlinear Problems of Theory of Oscillation and Theory of Control. Vibrational Mechanics. IMEP of RAS], Nauka, St. Petersburg, Russia.

Нелинейные проблемы теории колебаний и теории управления. Вибрационная механика. ИПМашРАН / под ред. В.В. Белецкого, Д.А. Индейцева, А.Л. Франкова. – СПб.: Наука, 2009. – 528 с.

  1. Yaroshevich, N.P., Sylyvonuk, A.V. (2013), “About some features of run-up dynamic of vibration machines with self-synchronizing inertion vibroexciters”, Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu, no. 4 (136), рp. 70–75.


Ярошевич М.П. Про деякі особливості динаміки розбігу вібраційних машин зі збудниками, що самосинхронізуються / М.П. Ярошевич, А.В. Силивонюк // Науковий вісник НГУ. – 2013. – №4. – С. 37–45.

Date 2015-10-29 Filesize 766.08 KB Download 561


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ISSN (print) 2071-2227,
ISSN (online) 2223-2362.
Journal was registered by Ministry of Justice of Ukraine.
Registration number КВ No.17742-6592PR dated April 27, 2011.


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