DEM modelling of tillage tools in sand and verification of draft forces in the soil box
¹Department of Electrical Engineering and Automation, Faculty of Engineering,
Czech University of Life Sciences Prague, Kamýcká 129, CZ165 21 Prague – Suchdol,
Czech Republic
²Department of Material Science and Manufacturing Technology, Faculty of
Engineering, Czech University of Life Sciences Prague, Kamýcká 129, CZ165 21
Prague – Suchdol, Czech Republic
*Correspondence: kure@tf.czu.cz
Abstract:
Soil resistance is still being important parameter during tillage. By reducing the soil resistance during processing, greater efficiency and cost reduction can be achieved. With the correct design of the shape of the tillage tools, reduction in the force required for tillage can be achieved. New tool designs must be tested in field conditions to determine the effect. Using DEM (Discrete element method) modelling, individual designs can be compared without the need for field tests. However, the accuracy of the model must first be verified on real tests. The paper deals with the creation of a mathematical model of sand, which is used for testing tillage tools in the soil box. The models are focused on tests of various shapes of wings on tillage tools. Draft forces are compared, and the correctness of the model is verified.
Key words:
DEM, draft force, modelling., soil box, tillage tools