Vibrations in engineering and technology

Serilko Leonid – Candidate of Technical Sciences, Associate Professor of the Department of Analytical Mechanics, Engineering Drawing and Mechanical Engineering, National University of Water and Environmental Engineering (Soborna St. 11, Rivne, Ukraine, 33000, e-mail: l.s.serilko@nuwm.edu.ua,  https://orcid.org/0000-0002-2396-561X).

Moroziuk Serhii – Senior Lecturer at the Department of Automobiles and Automotive Engineering, National University of Water and Environmental Engineering (Soborna St. 11, Rivne, Ukraine, 33000, e-mail: s.v.moroziuk@nuwm.edu.ua, https://orcid.org/0000-0002-8904-9614 ).

Pokhylchuk Ihor– Candidate of Technical Sciences, Associate Professor of the Department of Analytical Mechanics, Engineering Drawing and Mechanical Engineering, National University of Water and Environmental Engineering (Soborna St. 11, Rivne, Ukraine, 33000, e-mail: i.o.pokhylchuk@nuwm.edu.ua, https://orcid.org/0009-0006-9619-4293).

Serilko Dmytro – Candidate of Technical Sciences, Associate Professor of the Department of Construction, Road, and Reclamation Machinery, National University of Water and Environmental (Soborna St. 11, Rivne, Ukraine, 33000, e-mail: d.l.serilko@nuwm.edu.ua, https://orcid.org/0000-0001-5881-2413).

Inertial and vibrating conveyors are widely used in various industries for transporting bodies and implementing various technological processes. The main advantage of these devices is the ability to regulate the speed of transportation by changing the frequency and amplitude of oscillations. At the same time, the speed of movement of the body in the chute of the inertial conveyor depends on the value of the coefficient of friction between the body and the surface of the chute. To reduce the friction force when the body moves by inertia in the chute, it is given additional oscillations in the vertical or horizontal planes.

This work considers the motion of a cylindrical body in the chute of an inertial conveyor, which, in addition to longitudinal oscillations, also performs torsional oscillations at certain intervals of time. For this purpose, a mathematical model of body motion was developed. After numerical integration of the differential equations of the body, the dependences of the speed and displacement of the body on the geometric parameters of the conveyor chute, the coefficient of friction between the body and the surface of the chute, as well as the frequency and amplitude of oscillations were obtained. It was established that the average speed of transportation of the body depends almost linearly on the frequency of oscillations of the chute. A laboratory setup was developed to confirm the results of theoretical research.

The experimentally obtained dependences of the average speed of transportation by the proposed device are in satisfactory agreement with the results of mathematical modeling. 

The results of the conducted research can be used to determine the rational geometric and kinematic parameters of inertial conveyors.

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