Technology, energy, agriculture transport AIC

Ihor Kupchuk – Ph.D. in Engineering, Associate Professor of the Department of General Technical Disciplines and Labour Protection of Vinnytsia National Agrarian University (3 Soniachna Str., Vinnytsia, Ukraine, 21000, e-mail: kupchuk.igor@i.ua, http://orcid.org/0000-0002-2973-6914).
Julia Poberezhets – Ph.D. of Agricultural sciences, Associate Professor of the Department of Veterinary Medicine, Hygiene and Animal Breeding of  Vinnytsia National Agrarian University (3, Sonychna St., Vinnytsia, 21008, Ukraine, e-maill:julia.p08@ukr.net, http://orcid.org/0000-0002-1727-6105).
Ruslan Kravets – Dr. Sc. in Pedagogy, Associate Professor, Head of the Department of Ukrainian and Foreign Languages of Vinnytsia National Agrarian University (3 Soniachna Str., Vinnytsia, Ukraine, 21000, e-mail: krawezj@ukr.net, https://orcid.org/0000-0002-7459-8645).
Petro Lavreniuk – Sales manager of FIRM ERIDON LLC (Bohdana Khmelnytskogo Street, 35, Kyiv Region, Pereyaslav-Khmelnytsky District, Chopylky Village, 08467, Ukraine, e-mail: Lavreniuk.Petro@eridon.ua).

In the feed industry raw material, grinding is an integral part of the production cycle. However, this process is characterized by significant energy consumption – from 3 to 100 kW * hour per ton of finished goods, and only a part of it is directly spent on grinding. Therefore, this scientific research is aimed at minimizing the consumption of energy resources by technological machines – crushers and improving the energy efficiency of the process in general is an urgent issue.
A powerful modern research method of studying complex objects is system analysis, which enables to modernize existing machines and design new ones without conducting a large number of expensive physical experiments. Unfortunately, this method is not yet widely used in the research and design of new machines for processing agricultural products, since there are no developed and substantiated engineering theories describing the behaviour of the processed material in the workspace of the technological machine.
Grinding grain with a moisture content indicator at the level higher than the base condition, there is a low efficiency of the method of impact grinding, that is determined by the increased plasticity of the material and an increase in the value of the marginal deformation, which can lead the grain towards destruction. A partial solution of this problem is possible when combining the method of cutting and hammering, which has formed the basis of a technical solution implemented in the scientific laboratory of Vinnytsia National Agrarian University, where the design has been developed and experimental verification of the vibrating crusher have been carried out. Further improvement of the energy efficiency of the technological operation of grain grinding requires theoretical researches of the dynamics of the process, and determining the minimum amount of energy required for destruction.
The article deals with the laws of solid mechanics and the use of rheological methods in researching disperse systems, it presents the values of absolute deformation and the work that is carried out during the destruction of maize grain under the influence of applied impact-cutting load in analytical and graphic form. Moreover, the results of this research help us to establish the marginal values of plastic and elastic absolute deformations occurring in the material, which is a prerequisite for the theoretical substantiation of the grinding law.

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