Vibrations in engineering and technology

Hrushetskiy Sergiy - Candidate of Technical Sciences, Associate Professor of the Department of Agroengineering and System Engineering Podilsky State Agrarian and Technical University (St. Shevchenko, 13, Kamianets-Podilsky, Khmelnytsky region, 32316, e-mail: g.sergiy.1969@gmail.com).

Yaropud Vitaliy - Candidate of Technical Sciences, Associate Professor of the Department of machinery and equipment for agricultural production of Vinnytsia National Agrarian University (St. Soniachna, 3, Vinnytsia, Ukraine, 21008, e-mail: yaropud77@gmail.com).

For Ukraine's successful entry into Western markets, it is necessary to ensure the competitiveness of its own products, which is achieved through comprehensive mechanization of technological processes, reducing labor costs, increasing yields and quality of products.

The most common method of mechanized potato harvesting is undermining the tuber layer with its subsequent destruction and separation of tubers from the heap, which contains plant impurities, soil lumps and stones. The most difficult is the separation from the tubers of strong soil lumps and stones. Attempts have been made to overcome this problem by placing potatoes on well-sifted sandy soils, using special agronomic techniques that reduce, to some extent, the number of lumps. However, such measures are local in nature, not reliable enough and significantly complicate the technology. About 25% of the area occupied by potatoes is heavily littered with stones, the size of which is close to the size of tubers, and about 40% of planted potatoes are placed on soils prone to significant lump formation.

Accordingly, the aim of the study was to conduct a comparative analysis of technologies and machines for harvesting potatoes, to develop a model for cutting a potato heap with a ploughshare blade.

The research was carried out by technological and structural analysis of technologies and machines for harvesting potatoes. In the process of research methods of comparison and mathematical modeling of technological processes were used. The information base of the research was the work of Ukrainian and foreign scientists on technologies and machines for potato harvesting.

On the basis of the comparative analysis of technologies and machines for potato harvesting the main processes influencing agrotechnical indicators of harvesting equipment are revealed, the model of cutting of a potato heap by a ploughshare blade and other constructive and kinematic parameters of working bodies of a ploughshare blade is developed.

1. Hrushetskiy S.M., Yaropud V.M., Duganets V.I., Duganets V.I., Pryshliak, V.L. Kurylo V.M. (2019). Research of constructive and regulatory parameters of the assembly working organs for the potato’s harvesting machines. INMATEH-Agricultural Engineering. Vol. 59. № 3. pp. 101-110. DOI: 10.35633/INMATEH-59-11. [in English].

2. Hrushetskiy S.M., Rud A.V., Semenyshyna I.V., Medvedyev YE.P. (2019).  The technological process pattern of potato root harvester [The technological process pattern of potato root harvester]. Zhurnal «Podilʹsʹkyy visnyk: silʹsʹke hospodarstvo, tekhnika, ekonomika». № 31. Kamʺyanetsʹ-Podilʹsʹkyy. DOI: https://doi.org/10.37406/2706-9052-2019-2-7. [in English].

3. Hrushetskiy S.N. (2019). Modelʹ tekhnolohycheskykh protsessov kartofeleuborochnykh mashyn [Model of technological processes of potato harvesting machines]. Tekhnycheskoe y kadrovoe obespechenye ynnovatsyonnykh tekhnolohyy v selʹskom khozyaystve: materyaly Mezhdunarodnoy nauchno-praktycheskoy konferentsyy (24-25 oktyabrya 2019 hoda). V 2 ch.. Mynsk : BHATU. 2019. CH. 1. S. 125-127. [in Russian].

4. Hrushetskiy S.M., Pidlisnyy V.V. (2019). Analiz konstruktsiy ta rezulʹtaty doslidzhenʹ separatoriv kartoplyanoho vorokhu [Analysis of designs and research results of potato pile separators]. Suchasnyy rukh nauky: tezy dop. VI mizhnarodnoyi naukovo-praktychnoyi internet-konferentsiyi zhurnalu «WayScience». 4-5 kvitnya 2019. Dnipro. pp. 274-282. [in Ukrainian].

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