Vibrations in engineering and technology

Bulgakov Volodymyr – Academician of NAAS, Doctor of Technical Sciences, Professor, Head of the Department of Mechanics of the National University of Life and Environmental Sciences of Ukraine, (15, Heroyiv Oborony Str., Kyiv, 03041, e-mail: vbulgakov@meta.ua)

Adamchuk Valeriy - Academician of the National Academy of Sciences of Ukraine, Doctor of Technical Sciences, Professor, Honored Worker of Science and Technology of Ukraine, Laureate of the State Prize of Ukraine in Science and Technology, Director of the National Scientific Center "Institute of Mechanization and Electrification of Agriculture" of the National Academy of Agrarian Sciences of Ukraine, Chief Scientist Secretary of the National Academy of Agrarian Sciences of Ukraine (08631, Vokzalna str., 11, urban settlement Glevakha, Fastovsky district, Kiev region.vvadamchuk@gmail.com)

Kuvachov Volodymyr – Doctor of Technical Sciences, Associate Professor, Head of the Department of Machine Use in Agriculture of the Dmytro Motornyi Tavria State Agrotechnological University (18, Khmelnitsky Ave., Zaporozhye Region, Melitopol,72312; e-mail: kuvachoff @ ukr.net)

Solona Olena – Candidate of Technical Sciences, (Ph. D in Engeneering), Associate Professor, Head of the Department of General Technical Disciplines and Occupational Safety, Vinnytsia National Agrarian University (3, Sonyachna Str., Vinnytsia, 21008, e-mail: solona_o_v@ukr.net)

Many years of research have shown that when working on a tractor on soft soils, characteristic of almost most farmers. operations, there is a deep immersion of the wheel hooks in the soil layer. Immersed in the ground, the hooks press it in the horizontal direction opposite to the movement of the tractor. As a result, there is a decrease in the translational speed of its movement.

Research in this direction, taking into account the conditions of movement of wide-track agricultural equipment in the wake of a constant technological track, has been conducted by scientists is extremely insufficient. And in considering the problem of developing the scientific basis for the use of a bridge tractor, some scientists believe [13] that the issues of their theory and technological properties require further development and development.

One of the ways to reduce the energy intensity of production processes in agriculture is the transition to track and bridge agriculture using wide-track (portal) vehicles (or bridge tractors), which are specially adapted for this purpose. Since their movement in the footsteps of a constant technological track is characterized by both an increase in traction and coupling qualities, and a significant decrease in resistance to their rolling. Because of this, bridge tractors are able to develop a higher level of traction and energy in contrast to a traditional tractor, which moves on agricultural land. agrophone. The issue of determining the required level of energy saturation of wide-gauge (portal) vehicles becomes relevant in order to create a system of their aggregation and practical use. As a result of the conducted researches it is established that the required level of energy saturation of the bridge tractor should be at the level of 23.5 kW / t. Under conditions of sufficient adhesion of the engines of a wide-track agricultural vehicle with the supporting surface of the soil trace of a constant technological track allows it to develop traction at the level of 6.37 kN per ton of its operating weight.