JUSTIFICATION OF GROVE-LIKE ROD SHAPE OF THE SOIL TILLAGE UNIT FOR PRE-SOWING PROCESSING
Abstract
To prepare the soil for sowing, tillers with a horizontal or vertical rotation axis of the working body are used. Horizontal rotary working bodies make it possible to form three horizontal layers relative to the arable horizon with different contents of soil aggregates. In order to ensure the simultaneous grinding and separation of the soil, it is necessary to justify the shape and geometric dimensions of the working body of the tillage module for pre-sowing tillage. The method of bionic engineering was used to determine the most rational shape. For this purpose, the locomotion and biomechanics of the soil fauna were considered, namely the process of interaction of animal claws with the soil. To determine the degree of soil grinding, a refined mathematical model of A. M. Panchenko was used, which allows researchers to analyze the work of active bodies that perform both translational and rotational motion. Taking into account the proposed model of soil grinding, a geometric calculation of the shape of the rod of the bionic tillage unit for pre-sowing tillage was carried out based on the morphology of the claws of soil fauna animals, and its three-dimensional model was built. Animal claws were approximated using reverse engineering methods. The equations describing the outer and inner surfaces of the claw-shaped rod of the soil tillage unit for pre-sowing tillage were obtained by solving the condition of ensuring the maximum degree of soil grinding in the Wolfram Cloud software package using the FindMaximum function. The results of the calculation of the shape of the claw-like rod of the bionic tillage unit will be used to make an experimental sample of the equipment and further check the quality of soil grinding.
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