id: 29163
Title: Functions derivation of stresses in the soil and resistance forces to the motion of a plough share for cavity creation
Authors: Vladimir kovbasa, Olena Solona, Victor Deikun, Igor Kupchuk
Keywords: Anti-seepage screen, ploughshare, geometric parameters of surface, continuum mechanics, elastic modulus, viscosity, resistance forses.
Date of publication: 2021-10-06 12:14:24
Last changes: 2021-10-06 12:14:24
Year of publication: 2021
Summary: Subsoil irrigation is an effective way to increase crop yields. The use of an
anti-seepage screen improves the efficiency of water use during irrigation. The antiseepage screen reduces the evaporation of introduced moisture and prevents its
filtration into the lower soil layers. Laying a sprinkler with an impervious screen
using a trenchless method is more efficient due to its cost reduction. Such laying is
carried out by pulling the sprinkler together with a flat horizontal screen in the cavity
formed by the share of plow. The share of plow must form a stable horizontal cavity
in the soil. The geometrical parameters of the share of plow affect the stability of the
cavity roof and energy costs. The article provides a dynamic analysis of the influence
of the parameters and operating modes of the share of plow on the stresses on the
contact surface of the share of plow - soil and determines the components of the
resistance forces of its movement. During the dynamic analysis, the results of the main
methods of continuum mechanics were used. The soil was modeled with an elasticviscous medium. The tillage tool was modeled as an absolutely solid body. These
values depend on the geometric parameters of the share of plow, the modes of its
movement and the mechanical properties of the soil. Analytical dependences of
stresses in the soil and forces of resistance to the movement of the share of plow are
given. These analytical dependences were obtained using the previously performed
kinematic analysis of the interaction of the share of plow with the soil. The results of
the research can be used in the design of tillage tool for trenchless laying of
subsurface irrigation systems.
URI: http://repository.vsau.org/repository/getfile.php/29163.pdf
Publication type: Статті Scopus
Publication: Scientific Bulletin, Series D: Mechanical Enegineering. 2021. V. 83(3). P. 305-318
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Published by: Адміністратор
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