Platonov A., Korotkikh V. Mathematical modeling of the rooter bit movement of a forestry machine uprooter // Resources and Technology. 2026. №3, Vol. 23. P. 20‒38.

Mathematical modeling of the rooter bit movement of a forestry machine uprooter

Platonov
Aleksey

Voronezh State University of Forestryand Technologies named after G. F. Morozov, paa7@rambler.ru

Korotkikh
Vladimir

LLC UK Prodimex Agro, korotkihvlad@mail.ru

Key words:
unwanted vegetation; uprooting; uprooter; modeling

Summary: One of the most effective methods of clearing shelterbelts and other areas of unwanted tree and shrub vegetation such as uprooting remains a complex agricultural and forestry process. The relevance of the study is determined by the need to create new designs of a forestry uprooter, as well as the lack of modern domestic and foreign scientific works assessing the degree of impact of the surrounding area (soil layer and vegetation roots) on such a design. The aim of the study was to develop a mathematical model of the influence of resistance forces moments to the movement of a forestry uprooter in the process of uprooting unwanted trees and shrubs. The object of the study was a new uprooter design with rooter bits and pruning plates that ensure the removal of unwanted trees and shrubs with a root system and a root ball. The authors have established the parameters of the uprooting bit that are critical for the effective removal of woody and shrubby vegetation. The assumptions adopted for mathematical modeling of the operation of the uprooter are presented. It is shown that the moment of resistance to the penetration of the uprooting fangs of the uprooter into the soil layer depended on the properties of the soil, the depth of immersion of the working element (uprooter) and its dimensions. It has been determined that the moment of resistance to cutting of the soil and roots by the cutting plates of the uprooter depended on the properties of the soil layer and the roots of the vegetation being removed (including their quantity), as well as on the characteristics of the cutting edge blunting of the element cutting the soil-plant environment. It was found that the moment of resistance to the formation of a soil crumb was determined by the strength of the soil layer (including its surface), the force of rupture, fracture and pulling out of vegetation roots. The law of motion of a forestry machine's uprooter was obtained depending on the continuously changing conditions of its interaction with the soil environment and the roots of the removed unwanted tree and shrub vegetation at any position of the uprooter relative to the soil layer level. The presented mathematical model will allow us to improve the design elements of the rooting machine, as well as select the most energy-efficient modes of its operation.

pdf-version

Displays: 36; Downloads: 23;

Resources and Technology

scientific journal

Mathematical modeling of the rooter bit movement of a forestry machine uprooter