RESEARCH OF PRESSURE VALUES IN THE SPOT OF CONTACT OF A LARGE-SIZED TIRE WITH A DEFORMABLE SUPPORT SURFACE

UDC 629.032

  • Kim Yuriy Alekseevich – PhD (Engineering), Assistant Professor, the Department of Engineering Graphics for Machine-Building. Belarusian National Technical University (12, Kolasa str., 220013, Minsk, Republic of Belarus). E-mail: igmp_atf@bntu.by

  • Naskovets Mikhail Trofimovich – PhD (Engineering), Associate Professor, Professor, the Department of Logging Machinery, Forest Roads and Timber Production Technology. Belarusian State Technological University (13a, Sverdlova str., 220006, Minsk, Republic of Belarus). E-mail: naskovets@belstu.by

  • Zharkov Nikolay Ivanovich – PhD (Engineering), Senior Researcher, the Department of Logging Machinery, Forest Roads and Timber Production Technology. Belarusian State Technological University (13a, Sverdlova str., 220006, Minsk, Republic of Belarus). E-mail: zharkov@belstu.by

  • Gil Vitaliy Ivanovish – PhD (Engineering), Senior Lecturer, the Department of Engineering Graphics. Belarusian State Technological University (13a, Sverdlova str., 220006, Minsk, Republic of Belarus). E-mail: v.gil@belstu.by

DOI: https://doi.org/10.52065/2519-402X-2022-252-1-143-148

Key words: wheel mover, soil base, wheel contact patch, pegs.

For citation: Kim Yu. A., Naskovets M. T., Zharkov N. I., Gil V. I. Research of pressure values in the spot of contact of a large-sized tire with a deformable support surface. Proceedings of BSTU, issue 1, Forestry. Nature Management. Processing of Renewable Resources, 2022, no. 1 (252), pp. 143–148 (In Russian). DOI: https://doi.org/10.52065/2519-402X-2022-252-1-143-148.

Abstract

The issue of passability of vehicles for forestry and agricultural purposes on various types of soil is considered. Excessive compaction and damage to the structure of the soil leads to the formation of lumps, deterioration of water and air regimes, which negatively affects the growth and development of vegetation. In addition, as a result of the movement of pneumatic vehicles, damage to vegetation occurs.

There are many ways to reduce the amount of pressure at the contact patch. This is the doubling of wheels, an increase in their size, the use of a pneumatic track, a change in the air pressure in tires, etc. These ways have negative sides.

The results of a study of the contact pressure of a large-sized tire, on various soil surfaces, at various values of air pressure and wheel load, are presented. Studies carried out on three different supporting surfaces (loose peat with a moisture content of 65–70%, plowing with a moisture content of 15–20%, perennial grasses with a moisture content of 50–53%), with loads on a wheel G 34 kN, 50 kN, 65 kN showed that the distribution pressure on the contact surface depends on the design of the tire, the shape of the stars, the air pressure in them, the physical and mechanical properties of the soil, the load on the wheel.

The most effective way to increase the cross-country ability of a vehicle is to use large-size pneumatic tires using automatic air pressure control systems.

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References

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