Analysis of the existing approaches to the determination of the physico-mechanical parameters of the unbound soil and the modeling of the its particles dynamics

Authors: Pashkovsky R.R.
Published in issue: #1(78)/2023
DOI: 10.18698/2541-8009-2023-1-853
Category: Mechanical Engineering and Machine Science | Chapter: Machines, Units and Processes
Keywords: angle of repose, angle of internal friction, cohesion, Hertz-Mindlin model, adhesion, rolling friction, discrete element method, soil shear, shear stresses
Published: 09.02.2023

The article presents different methods for testing unbound soil to determine its physico-mechanical parameters, which, together with the tire type, determine wheeled vehicle roadability, as well as grip and pull and energy efficiency characteristics. To describe the tire — road interaction, it is advisable to use the mathematical modeling methods. The use of the discrete element method makes it possible to describe the interaction of soil particles. The verified mathematical model of the soil can be used for further research in describing the interaction of the vehicle tire with the soil at the stage of academic research work. The existing mathematical models of the interaction of separate particles were compared.

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