Impact of Multiaxial Propulsion System of Machine-and-Tractor Units on Soil Density

Improvement of crop production technologies is based on the development of agricultural machinery in which the trac- tor power plays an important role. In crop production, agricultural crops require variable attention during their growing season and consequently, different production costs. The most expensive are row crops which in the process of development require a lot of inter-row tillage of plantings and sowings. The implementation of such tillage involves the control of weeds, plant fertilization, operations for chemical protection of plants from diseases and pests. Therefore, it becomes evident that the agricultural machinery used in the production of such crops must be adapted to its use in planting and sowing crops at different stages of plant development. Thus, both the aboveground and the parts of the plant located in the soil should not be damaged and oppressed by the working bodies of agricultural machines and the engines of energy facilities. It becomes obvious that tractor fleet of agricultural organizations should have both powerful general-purpose tractors used mainly for plowing, continuous disking, cultivation and sowing using wide coverage units, and row-crop tractors designed for inter-row tillage. There are methods for developing an optimal fleet of machinery for agricultural organizations which differ in production trends and in size of agriculturally used areas. Taking into account the possibility of using modern means of digitalization and artificial intelligence which can significantly improve the quality of technological processes and control them, it is possible to develop technologies for the production of row crops. Of all tractor models mentioned in the research, the following models have the best agrotechnological characteristics required of the general-purpose row-crop tractors: Fastrac 2170 produced by the British company JCB and LTI 162.5 tractor that is to be produced in Izhevsk, Russia.

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Who decides what tractors farmers need?

Зернов

Petukhov

Пономарев

2021

Аграрная наука Евро-Северо-Востока

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The influence of the parameters of the running systems of wheeled vehicles on the change in soil density

Шило

Romanyuk

Kruk

et al. 2021

Traktory i sel hozmashiny

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The movement of wheeled vehicles on soils and grounds leads to a change in their density. The research includes the influence of mass and its distribution along the axes of the wheels on the change in the density of soils and grounds. The substantiation of analytical dependencies for deter-mining the density of compacted and flowing soils and soils from repeated impacts of wheels under various loads is given. The dependence for determining the density of the soil in the general case, including compressed and fluid components of the state of the soil and soil mass, was substantiated. The experimental laboratory studies were carried out on the effect of wheels on the soil and the effect of wheel load on soil compaction. The dependences were obtained to determine the compac-tion of soil with different physical and mechanical properties under different loading modes of the running systems. It was found that the distribution of the mass of a wheeled vehicle along the axles of the wheels affects the depth of the track and the compaction of the soil. The obtained dependences for describing the process of soil compaction are consistent with the results of experiments. It was found that with an increase in the number of axles of the running system, soil compaction decreases. The minimum track depth and soil compaction are observed when the mass of the wheeled vehicle is evenly distributed along the axes of the chassis. With an increase in the number of axles, the influence of the ratio of the pressure of the first wheel to the average pressure on soil compaction decreases due to a decrease in the differential pressure of the wheels that occurs in multi-axle wheel systems. With slight deviations from the unit of the ratio of the front wheel load to the average value of the pressure, the increase in soil density is not perceptible. As the front-to-middle load ratio increases, soil compaction increases significantly compared to an even weight distribution along the axles.

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Impact of Multiaxial Propulsion System of Machine-and-Tractor Units on Soil Density

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Who decides what tractors farmers need?

Who decides what tractors farmers need?

The influence of the parameters of the running systems of wheeled vehicles on the change in soil density

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