The Simulation of the Tillage Method in Cohesive Soil

Tamás, Kornél [Tamás, Kornél (Gépészet), szerző] Gép- és Terméktervezés Tanszék (BME / GPK); Jóri, J István [Jóri J., István (Agrár-műszaki), szerző] Gép- és Terméktervezés Tanszék (BME / GPK)

Angol nyelvű Tudományos Konferenciaközlemény (Egyéb konferenciaközlemény)
    Azonosítók
    Using Distinct Element Method (DEM) have been carried out to investigate the effect of cohesion on the flowability of polydisperse particulate systems and seems to be a promising approach for making an elaborated model to describe the soil– tool (sweep) interaction. Virtual DEM models were developed in correspondence with the real tests. In this article we will introduce the methods of how DEM approach was used in developing a model for the prediction of draught force on cultivator sweeps. The micro structure of soil is very complex and depends on factors including water content, density, and other conditions. The conventional approach to explore the mechanical behavior of soil mainly relies on experimental shearing tests under laboratory conditions. The implementation of DEM is carried out by a series of numerical triaxial tests on granular assemblies with varying confining pressures and bond conditions. The results demonstrate that the numerical simulations can produce correct responses of the soil behavior in general, including the critical state response, as compared to experimental observations using the Mohr circles. The influences of cultivator sweep geometry was researched by DEM in 3D and were correlated with the soil bin tests results.
    Hivatkozás stílusok: IEEEACMAPAChicagoHarvardCSLMásolásNyomtatás
    2021-10-19 12:18