Modelling of soil-chisel tine interactions using the discrete element method

Optimization of operating parameters of soil tillage machines that require high energy in agricultural mechanization processes is of great importance in terms of reducing energy input and increasing efficiency. Discrete element method (DEM), one of the numerical simulation techniques, has been widely used in simulation studies on determining the operating parameters of soil tillage machines and their effects on the soil in recent years. In this study, DEM simulation was used to determine the effect of different chisel tine on the soil and the draft force. The results obtained from the experiments conducted in the soil bin were compared with the DEM simulation. As a result of the tests carried out at two different depths, the R, MSE and ε values determined to compare the draft forces obtained from the DEM simulation and the soil bin were found to be 0.99, 6853.59 and 10.43 for 20 cm working depth, and 0.993, 8401.974, 8.49 for 28 cm working depth, respectively. The values of R, MSE and ε determined for the deformation area were found as 0.997, 1375.1 and 7.04 for 20 cm working depth, and 0.975, 3196.75, 5.39 for 28 cm working depth, respectively.