Engineering, Energy, Transport AIC

Nataliia Veselovska – Doctor of Technical Sciences, Full Professor, Head of the Department of Machines and Equipment of Agricultural Production of Vinnitsa National Agrarian University (3 Soniachna St., Vinnytsia, Ukraine, 21008, e-mail: wnatalia@ukr.net, https://orcid.org/0000-0001-9399-6721).

Serhiy Shargorodskiy – PhD, Associate Professor of the Department of Machines and Equipment of Agricultural Production of the Vinnytsia National Agrarian University (3, Solnychna str., Vinnytsia, Ukraine, 21008, e-mail: sergey20@vsau.vin.ua, https://orcid.org/0000-0003-2125-773X).

Evgen Yashchuk – post-graduate student of the Department of Machines and Equipment of Agricultural Production of Vinnytsia National Agrarian University (3 Sonyachna Street, Vinnytsia, 21008, Ukraine, e-mail: zenaasuk@gmail.com).

Roman Hrechko – engineer designer, «AgroKalina» Ltd,  Nezalеgnosti str., 46, Kalinivka, Vinnitsa region, Ukraine, 22400, E-mail: grechkoro@gmail.com ORCID: 0000-0002-8409-5793).

As you know, one of the areas of development of modern agricultural machinery is to expand their functionality, increase capacity and productivity. The solution to this problem is possible through the use of powerful small-sized drives - namely hydraulic drives. These properties of the drive of this type have become crucial for its widespread use in agricultural machinery. Today, the hydraulic drive is used to drive the working bodies of machines, and as the drive of the main movement of self-propelled agricultural machines. The main hydraulic unit that drives a self-propelled agricultural machine is a hydrostatic transmission. Significant competition in the market of self-propelled agricultural machinery has led to an increase in the level of technical requirements for both agricultural machinery in general and hydrostatic transmissions operating in their composition. At the same time, further increase of energy saving and economic efficiency becomes especially important. The solution of the set tasks is greatly facilitated by further hydrofication  of the drives and working bodies of agricultural machines. The most successful solution to this problem is the use of a hydrostatic drive, a typical representative of which are hydrostatic transmissions such as GST-90.
The analysis of theoretical researches is carried out, the design of the stand for carrying out experimental researches for the purpose of confirmation of results of mathematical modeling is offered. Measuring and recording equipment for conducting a physical experiment is described. The coincidence of the results of experimental studies of hydrostatic transmissions with the results of computer simulation based on the developed mathematical model confirms its adequacy and correctness of the assumptions. Due to this, it is possible to recommend using the results of mathematical modeling in the design of new designs of hydrostatic transmissions.

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