English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

A brief review of the methods used to simulate the interaction of soil-tillage tool is given. The EDEM Academic program was used to practically test the possibilities of using the discrete element method (DEM). A brief description of the physical models of this application used to simulate the interaction of the soil-tillage tool is given. To evaluate the selected physical models (Hertz-Mindlin, Hertz-Mindlin JKR, Hysteretic Spring), a virtual soil channel and a model of a simple tillage tool of rectangular shape have been created. The basic parameters of the soil channel, discrete particles and physical models are described. As a result of the research, two components of the traction resistance vector were obtained, the longitudinal component X and the vertical component Z. Data analysis showed that the average values of forces calculated using physical models of Hysteretic Spring and Hertz-Mindlin JKR differ slightly. With a particle radius of 10 mm, they are equal to X – 597 and 592H; Z – 111 and 97H, respectively. More significant differences when comparing these models with the base model Hertz-Mindlin. For example, in comparison with the physical model of the Hysteretic Spring, the component forces X and Z are less than 18.1%. This is due to the introduction of additional forces imitating the adhesion of particles.

Comparative studies of physical models of soil implemented by the method of discrete elements (DEM) on the example of a simple loosening tillage tool