REVIEW OF METHODS FOR MODELING THE INTERACTION TILLAGE TOOLS OF SOIL-PROCESSING MACHINES AND SOIL ENVIRONMENTS
A classification of methods for studying the process of interaction of soil environments with the tillage tools of soil-cultivating machines. The methods are divided into two groups: mathematical modeling and experimental research. Mathematical methods for studying soil interactions by numerical methods are considered in more detail, which open up new possibilities in comparison with empirical and analytical approaches. A classification of numerical methods is given, including: the finite element method (FEM); computational fluid dynamics (CFD); discrete element method (DEM); smooth particle hydrodynamics (SPH). Examples of the most common software that implement these methods are given. The analysis of the applicability of numerical methods for solving practical problems of modeling the interaction of soil environments with the tillage tools of soil-cultivating machines. Analysis of existing studies has shown that DEM methods are the most suitable. Their application makes it possible to evaluate not only the power parameters of the soil cultivation process, but also to investigate a set of qualitative parameters, without which the simulation results will be incomplete. The experimental verification of the simulation results carried out in the studies considered confirms their rather high reliability.