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Vibrations in engineering and technology

space SCIENTIFIC JOURNALS OF VINNITSA NATIONAL AGRARIAN UNIVERSITY

Issue №: 2(97)

Published: 1970.01.01
DOI: 10.37128/2306-8744-2020-2


Description:
The journal deals with the problems of vibration technologies and machines, mathematical methods of vibration process studies, information on design and technological development, presents teaching and methodological aspects of teaching in the Higher School of Applied Sciences, where vibration machines and technologies are studied.

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PLANNING A MULTI-FACTOR EXPERIMENT FOR DETERMINING RATIONAL PARAMETERS OF THE VIBRATION MACHINE OPERATION

DOI: 10.37128/2306-8744-2020-2-1
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Tsurkan Oleh – Ph.D., associate professor of the Department of « Technological processes and equipment of processing and food industries» of Vinnytsia National Agrarian University, director of Ladyzhyn College of Vinnytsia National Agrarian University (5, P. Kravchyka St., Ladyzhyn, Vinnytsia region, 24321, Ukraine, e-mail: tsurkan_ov76@ukr.net)

Horbatiuk Ruslan – teacher of Ladyzhyn College of Vinnytsia National Agrarian University (5, P. Kravchyka St., Ladyzhyn, Vinnytsia region, 24321, Ukraine, e-mail: ruslangorbatyuk@gmail.com). 

Dmytro Prysiazhniuk – Ph.D., teacher of Ladyzhyn College of Vinnytsia National Agrarian University (5, P. Kravchyka St., Ladyzhyn, Vinnytsia region, 24321, Ukraine, e-mail: dima061992@yahoo.com).  

 

Annotation

The approaches and methods of improving the quality and efficiency of agricultural machinery repair are of priority importance in Ukraine today. The tough competitive environment in the interstate and domestic market of technical services dictates its own terms. One of the promising research methods is the planning of an experiment in the optimization of multifactorial processes, such as vibration strengthening processing of agricultural machinery parts.

The object of the research in this article was the technological process of finishing, cleaning and strengthening processing of parts of tillage machines with their surface plastic vibration deformation.

The purpose of the work was to plan a multifactorial experiment for the theoretical determination of the compromise parameters of the operation of a vibration machine with an activator of the movement of the working medium for strengthening the treatment of the working bodies of tillage machines.

The task of the work was to: analyze research and publications on the basics of probability theory, mathematical statistics, foundations of correlation, variance and regression analyzes, planning an optimal experiment; obtain the coefficients of complex equations of multiple regression of the 2nd order and plot the dependence of the consumed energy consumption by the developed installation on the amplitude of oscillations of the working chamber, the amplitude of oscillations of the activator, angular velocity of the drive shaft of the working chamber, angular velocity of the drive shaft of the activator, processing time; the height of microroughnesses from the vibration amplitude of the working chamber, the vibration amplitude of the activator, the angular velocity of the drive shaft of the working chamber, the angular velocity of the drive shaft of the activator, the processing time; surface hardness on the vibration amplitude of the working chamber, vibration amplitude of the activator, angular velocity of the drive shaft of the working chamber, angular velocity of the drive shaft of the activator, processing time; based on the results of the research and testing of the developed installation on the basis of the constructed response surfaces of the processes under study, to determine the rational technological parameters of its operation, the compromise value of which can be obtained by the Cramer method in the mathematical environment "Mathcad 15".

The research methodology was based on mathematical statistics, correlation, variance and regression analyzes, planning an optimal experiment.

In scientific work, based on the results of a multifactorial experiment, a mathematical model was obtained in the form of multiple second-order regression, which adequately describes the technological process under study. Compromise technological parameters of the investigated process were obtained, which are: the amplitude of oscillations of the working chamber - 2-4 mm; the vibration amplitude of the activator is 1.5-2.5 mm; the angular speed of the drive shaft of the working chamber - 115-120 rad/s; the angular speed of the drive shaft of the activator 130-145 rad/s; processing time - 80 min.

 

Keywords: vibration machine, planning, multi-factor experiment, hardening processing, tillage implements, compromise parameters.

List of references

1. Bondar A.G.. Statyukha G.A.. Potyazhenko I.A. (1980). Planirovaniye eksperimenta pri optimizatsii protsessov khimicheskoy tekhnologii (algoritmy i primery). Kiyev. 264 s. [in Russian].

2. Hasti T., Tibshirani R., Fridman Dzh. (2020). Osnovyi statisticheskogo obucheniya. Moskva, 768 s. [in Russian].

3. Boyko N.G., Ustimenko T.A. (2009). Teoriya i metodyi inzhenernogo eksperimenta. Donetsk. 158 s. [in Russian].

4. Borovikov V.P., Borovikov I.P. (1997). Statistica. Statisticheskiy analiz i obrabotka dannyih v srede Windows. Moskva. 608 s. [in Russian].

5. Bari A., Chauchi M., Yung T. (2020). Statisticheskiy analiz. Moskva, 480 s. [in Russian].

6. Karlberg K. (2017). Regressionnyiy analiz v Microsoft Excel. Moskva, 400 s. [in Russian].

7. Babichev A.P., Babichev I.A. (1998). Osnovyi vibratsionnoy tehnologii. Rostov-na-Donu: Izdatelskiy tsentr DGTU. 624 s. [in Russian]. 

8. Dreyper N., Smit G. (2018). Prikladnoy regressionnyiy analiz. Moskva, 912 s. [in Russian].

9. Shashkov V.B. (2003). Prikladnoy regressionnyiy analiz (mnogofaktornaya regressiya). Orenburg, 362 s. [in Russian].

10. Yakovlev V.B. (2018). Regressionnyiy analiz. Raschetyi v Excel i Statistic. Moskva, 177 s. [in Russian].

 

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About journal

Topics of the journal:

The journal "Vibrations   in engineering  and technology" presents materials on the following issues

• Theory of processes and machines
• Mechanical Engineering and materialprocessing
• Processing and food production

Key information:
ISSN (print): 2306-8744
DOI: 10.37128/2306-8744

The certificateof massmediaState registration:kv no 16643-5115 from 30.04.2010 .
Founder of the journal: Vinnytsia National Agrarian University

Kind of publication: journal
Type of publication : Scientific
Publication status: Domestic
Year of founding:
Periodicity: 4 times a year
Extent: 18.75 nominal printed pages
ISSN: 2306-8744 (printed version), (online)
Language of edition  : (mixed languages) Ukrainian, English
The scope of the distribution and the category of readers: national, foreign, teaching staff, scientists, businessmen.
Periodical is included in the list of scientific professional editions of Ukraine approved by the Order of Ministry of Education and Sciences of Ukraine from 21.12.2015 No. 1328.
The journal "Vibrations in engineering and technology" is included in the "Catalogue of periodicals of Ukraine".
Journal subscription can be executed in each post office department.
 Subscription Index is  99720.

 

Old version of site: http://vibrojournal.vsau.edu.ua/

History of journal:

In June 1994 the 2nd International Scientific and Technical Conference "Application of vibrations for technological purposes" was organized on the basis of Vinnytsia State Agricultural Institute. Leading experts in this field, noting the significant contribution to the school of Vibration Engineering under the leadership of P. S. Bernyk, proposed to create a professional all-Ukrainian scientific and technical journal "Vibration in engineering and technology..The journal was foundedat Vinnytsia State Agricultural Institute and P.S. Bernyk was elected to be the chief editor .
For all these years (since 1994) theJournal "vibration in engineering and technology" published  94 issues wherestudy of vibration effects, the creation of progressive energy saving technologies and equipment for their implementation were highlighted.
Currently Kaletnik H.M  PhD , professor, academician NAAS is the chief editor of the "Vibrations in engineering  and Technology"
The journal "Vibration in Engineering and technology", which has no analogues on the territory of Ukraine, is well known abroad.