Obtaining functional dependence of friction coefficient of soil on steel

International Conference on Mechanical Engineering, Automation and Control Systems 2018

Alekseev, V.V.^1 ; Avrelkin, V.A.^2 ; Vasiliev, S.A.^2

Department of Information Technologies and Mathematics, Cheboksary Cooperative Institute, Cheboksary

428025, Russia^1

Department of Applied Mechanics and Graphics, Chuvash State University Named after I.N. Ulyanov, Cheboksary

428015, Russia^2

关键词: Agricultural science;    Friction coefficients;    Functional dependence;    Hydrophysical parameters;    Improvement of methods;    Irreversible changes;    Technological process;    Theoretical approach;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/560/1/012137/pdf
DOI  :  10.1088/1757-899X/560/1/012137

来源: IOP

【 摘 要 】

The development of theoretical approaches to the substantiation of the water-physical properties of soils, which determine the favorable mode of functioning of tillage machines and units, and the improvement of methods for measuring hydrophysical parameters, is an actual problem of agricultural science. The intensification of technological processes in some cases leads to irreversible changes in the soil profile. The results of the research can be substantially expanded by modeling the hydrophysical properties of the soil and studying the water and air regimes of the soils. In accordance with this, an important task is the theoretical justification of the functional dependence of the frictional force in the soil on its specific surface, porosity and moisture for determining the moisture ranges when which meliorative measures are environmentally friendly and least energy intensive. The methodological basis was the fundamental and applied foundations of soil hydrophysics. The study of the modes of operation of the tillage machines (crumbling / speed) on various types of soils allowed one to determine the most effective moisture intervals at which, with an average fuel consumption from 4.1 to 17 l/ha, it is saved from 0.16 to 0.68 l/ha. This allows one to reduce fuel consumption by 5-7 % and to provide the best mechanical effect on the soil. The application of these methods was based on the use of modern software packages for processing the results of experiments conducted in laboratory and field conditions.