Vibrations in engineering and technology

Slipchenko Maksym – Ph.D., Associate Professor, Associate Professor, head of the department of professional education of Kharkiv State Vocational and Pedagogical College named after V.I. Vernadskyi (Kharkov, Ukraine, 61002, email: Slipchenko_M@ukr.net, https://orcid.org/0000-0002-9728-661X).

Stadnik Mykola – Doctor of Technical Sciences, Professor of the Department of Electrical Power Engineering, Electrical Engineering and Electromechanics of Vinnytsia National Agrarian University (3 Sonyachna St., Vinnytsia, 21008, Ukraine, e-mail: stadnik1948@gmail.com, https://orcid.org/0000-0003-3895-9607).

Solona Olena – Ph.D., Associate Professor, Dean of the Faculty of Production Technology, Processing and Robotics in Livestock Breeding of the Vinnytsia National Agrarian University (3, Sonyachna St., Vinnytsia, Ukraine, 21008, e-mail: solona_o_v@ukr.net, https://orcid.org/0000-0002-4596-0449).

The article investigates the dynamics of grain mixture movement on a plate spreader, taking into account the surface features of the working body and the influence of aerodynamic forces on the cleaning process. The boundary conditions are formulated and equations of particle motion are obtained, which allow us to estimate their trajectory and cleaning efficiency under the influence of air flow. The main factors that affect the uniformity of mixture distribution and quality of its cleaning, in particular the geometric parameters of the spreader, air flow rate, and physical and mechanical characteristics of the particles, are determined.

Particular attention is paid to the role of vibration, which can be used to improve the processes of cleaning and pre-mixing the grain mixture before it is fed to spreader. Vibration contributes to uniform distribution of particles in size and density, which, in turn, can increase efficiency of subsequent cleaning by optimizing aerodynamic conditions. The possibility of integrating vibration oscillations into the grain distribution system to ensure flow stability and reduce the unevenness of its movement on surface of spreader is considered.

The combination of aerodynamic and vibration effects can provide more efficient removal of impurities, improve the homogeneity of mixture and stabilize its movement during subsequent processing stages. The results obtained can be used to develop improved technological solutions in the field of post-harvest grain processing, in particular to increase the efficiency of cleaning grain mixtures. The proposed approaches are of practical importance for improving the design of equipment used in agricultural production.

1. Slipchenko, M., Bredykhin, V., Kis-Korkishchenko, L., Pak, A., Alfyorov, O. (2023). Construction of a physical-mathematical model of oscillations of the unbalanced vibrator of the pneumatic sorting table. Eastern-European Journal of Enterprise Technologies. Vol. 4, no. 7 (124). P. 89-97 [in English].

2. Tishchenko, L.M., Kharchenko, S.O., Slipchenko, M.V. Patent na korysnu modelʹ Ukrayiny. Vibrovidtsentrovyy separator [Patent for a utility model of Ukraine. Vibrocentrifugal separator]. № 50587. 10.06.2010 [in Ukrainian].

3. Bredykhin, V. et al. (2023). Improving Efficiency of Corn Seed Separation and Calibration Process. Agricultural Engineering. Vol. 27, no. 1. P. 241-253 [in English].

4. Olshanskyi, V.P., Slipchenko, M.V., Kharchenko, S.O., Polievoda, Yu.A. (2021). Nablyzhenyy sposib rozrakhunku zernopotoku v vertykalʹnomu tsylindrychnomu vibroresheti [Approximate method for calculating grain flow in a vertical cylindrical vibrating screen]. Vibratsiyi v tekhnitsi i tekhnolohiyi – Vibrations in engineering and technology, 1 (100), Р. 57-65 [in Ukrainan]. 

5. Polievoda Yu.A., Volynets, Ye.O. (2021). Doslidzhennya vibroreolohichnykh modeley sharu sypkoho seredovyshcha [Research of vibro-rheological models of a layer of loose medium]. Tekhnika, enerhetyka, transport APK – Technology, energy, agriculture transport AIC, 1 (112), P. 60-69 [in Ukrainian].

6. Olshanskyi, V., Slipchenko, M., Kharchenko, S., Kovalyshyn, S., Barsuk, A. (2021). Pro rukh neodnoridnoyi zernosumishi po vertykalʹnomu vibroreshetu [On the movement of a heterogeneous grain mixture along a vertical vibrating screen]. Inzheneriya pryrodokorystuvannya – Environmental Engineering, 2 (20), P. 27-31 [in Ukrainian].

7. Olshanskyi, V.P., Bredykhin, V.V., Lukianenko, V.M. (2017). Teoriya separuvannya zernaystuvannya [Grain separation theory]. KhNTUSH. 803 p [in Ukrainian].

8. Solona, O.V., Kupchuk, I.M., Olshanskyi, V.P., Slipchenko, M.V. (2021). Pro analitychnyy rozv'yazok rivnyannya syly udaru dvokh pruzhnykh til [On the analytical solution of the equation of the impact force of two elastic bodies]. Vibratsiyi v tekhnitsi i tekhnolohiyi – Vibrations in engineering and technology, 3 (102), Р. 34-42 [in Ukrainan]. 

9. Olkhovskyi, V.O., Dudariev, I.M. (2021). Modelyuvannya rukhu konstruktyvnykh elementiv zernovoho separatora nozhychnoho typu [Modeling the movement of structural elements of a scissor-type grain separator]. Silʹsʹkohospodarsʹki mashyny – Agricultural machinery, 46, P. 70-84 [in Ukrainian].

10. Solona, O.V., Kotov, B.I., Spirin, A.V., Kalinichenko R.A. (2016). Obgruntuvannya parametriv poyednanykh protsesiv mikronizatsiyi i podribnennya iz zastosuvannyam vibratsiynykh tekhnolohiy pry pererobtsi zerna na korm [Justification of the parameters of combined micronization and grinding processes using vibration technologies in grain processing for feed]. Vibratsiyi v tekhnitsi i tekhnolohiyi – Vibrations in engineering and technology, 3, P. 213-218 [in Ukrainian].

11. Borysiuk, D., Spirin, A., Kupchuk, I., Tverdokhlib, I., Zelinskyi, V., Smyrnov, Ye., Ognevyy, V. (2021). The methodology of determining the place of installation of accelerometers during vibrodiagnostic of controlled axes of wheeled tractors. Przegląd Elektrotechniczny, Vol. 97, № 10. P. 44-48 [in English].

12. Spirin, A.V., Tverdokhlib, I.V., Kotov, B.I., Stepanenko, S.P., Shvydya, V.O. (2017). Do pytannya pnevmohravitatsiynoyi separatsiyi zernovykh materialiv [On the issue of pneumogravity separation of grain materials]. Tekhnika, enerhetyka, transport APK – Technology, energy, agriculture transport AIC, 4 (99), P. 51-55 [in Ukrainian].