Vibrations in engineering and technology

Korobko Bogdan - Professor of the Department of Industrial Machine Building and Mechatronics, Doctor of Technical Sciences, at the National University "Poltava Polytechnic named after Yuri Kondratyuk" (24 Pershotravnevyi Ave., Poltava, Ukraine, 36011, e-mail: bogdan.korobko@ukr.net, phone: +380503054442).

Bugrov Dmytro - graduate, specializing 133 "Industrial Machine Building" at the Department of Industrial Machine Building and Mechatronics, National University "Poltava Polytechnic named after Yuri Kondratyuk" (24 Pershotravnevyi Ave., Poltava, Ukraine, 36011, e-mail: bugrov.dmitriy@gmail.com, phone: +380666917914).

This work provides an overview of equipment and technologies for decorative-finishing treatment of parts. It is established that the most effective methods are abrasive mechanical processing techniques such as tumbling, vibrational, centric-rotational, and centric-planetary. Each of them exhibits varying levels of efficiency in specific application areas. Currently, these methods ensure the highest processing efficiency and quality while maintaining the lowest product cost and manufacturing complexity.

Technological equipment is currently produced in series, which may include relatively complex assemblies and mechanisms to address complex technological process tasks, each having specific drawbacks. The main directions for improving equipment are identified, and a classifier of part characteristics for vibro-processing is provided to standardize and unify.

Structural schemes for setups for vibratory abrasive processing with actively positioned horizontal and vertical working tools are proposed. The uniqueness of these setups lies in the ability to create vibrational fields of different intensities (controlled vibratory exciter of the working chamber) and to control the intensity of the motion of the working tool. Control over these parameters allows adapting the setup to a specific technological process and achieving optimal technical and economic indicators for vibro-processing parts, especially for decorative elements with complex shapes, small dimensions, diverse material characteristics – varying hardness and viscosity, which may pose challenges with conventional methods.

1. Chubik R. V., Yaroshenko L. V. (2011). Kerovani vibratsiyni tekhnolohichni mashyny.  [Controlled vibrational technological machines]: Monograph. Vinnytsia: VNAU. 355 p. ISBN 978-966-2462-35-7. [in Ukrainian].

2. Boguslaev V. A., Muravchenko F. I., Zhemanyuk P. D. (2003). Tekhnolohichne zabezpechennya ekspluatatsiynykh kharakterystyk detaley HTP. Lopatky kompresora ventilatora. [Technological support for operational characteristics of gas turbine engine parts. Compressor fan blades]. Zaporizhzhia: VAT "Motor Sich". 396 p. [in Ukrainian].

3. Lubenska L. M., Kalmikov M. O., Yasunik S. M. (2009). Osnovy vibratsiynoyi tekhnolohiyi. [Basics of vibration technology]: Educational manual. Luhansk: Publishing house of SNU named after V. Dal. 284 p. [in Ukrainian].

4. Yaroshenko L. V. (2019). Eksperymental'ni doslidzhennya rozpodilu dynamichnoho naporu tsyrkuliyatsiynoho rukhu robochoho seredovyshcha v toroidal'nykh konteynerakh vibratsiynykh mashyn. [Experimental Studies of the distribution of dynamic pressure of circulation flow of working medium in toroidal containers of vibratory machines. Vibrations in engineering and technologies]. Issue 3 (94). P. 33-44. [in Ukrainian].

5. Bernyk P. S., Yaroshenko L. V. (1998). Vibratsiyni tekhnolohichni mashyny z prostorovymy kolyvannyamy robochykh orhaniv. [Vibrational technological machines with spatial oscillations of working bodies]: Vinnytsia. 116 p. [in Ukrainian].

6. Serdyuk L. I., Onyshchenko V. A. (2007). Pidvyshchennya nadiynosti i dovhozhyvuchosti vibratsiynoyi tekhniki z vykorystannyam kerovanykh vibromashyn. [Increasing the reliability and durability of vibration equipment using controlled vibro machines.] THE IMPROVEMENT OF THE QUALITY, RELIABILITY AND LONG USAGE OF TECHNICAL SYSTEMS, AND TECHNOLOGICAL PROCESSES. Hurghada. P. 47 – 51. [in Ukrainian].

7. Zhigiliy S. M. (2012). Dynamika debalansnoho vala kerovanoho vibrozbudzhuvacha UVV-02. [Dynamics of unbalanced shaft of controlled vibro exciter UVV-02.] Collection of scientific papers. Series: Industry mechanical engineering, Construction. Poltava: PoltNTU. Issue 1 (31). P. 186 – 193. [in Ukrainian].