The Dynamic Simulation of Stems and Soil Cutting with Coleseed Single-disc Colter Based on LS-dyna

Colter is the core component of coleseed seeder. In order to improve simulation precision of the finite element method in the complex soil environment, we built the soil model which close to the actual environment, as well as understand the stems influence on cutting resistance. The simulation was carried out through soil and stems cut by the colter of the mountainous regions small manual labour coleseed using the LS-dyna software in this study, under the colter with 0.84m/s and 15 r/s.The results showed that the maximum cutting resistance force was 14.4N when the colter cut soil, the maximum cutting resistance force was 536 N when colter cut stem and soil. The simulation rationality was verified by theoretical calculation, this study provided parameters optimization design for mountainous regions small manual labour coleseed seeder.