Title: Simulation of grain-straw separation by Discrete Element Modeling with bendable straw particles
Authors: Lenaerts, Bart ×
Aertsen, Thomas
Tijskens, Engelbert
De Ketelaere, Bart
Ramon, Herman
De Baerdemaeker, Josse
Saeys, Wouter #
Issue Date: Feb-2014
Publisher: Elsevier
Series Title: Computers and Electronics in Agriculture vol:101 pages:24-33
Abstract: The combine harvester owes its name to the integration of the whole chain of grain harvesting steps in one machine. Running these interdependent processes simultaneously requires insight in the influence of crop factors and adjustments on the individual processes and the consequences for downstream processes. This paper introduces changes to the Discrete Element Method (DEM) in order to be suitable for the simulation of grain–straw separation, which is one of the most critical processes in the combine harvester. Segmented bendable straw particles have been constructed in the DEMeter++ simulation environment and their physical properties have been calibrated with realistic straw properties. The use of these particles for modeling separation has been validated by reconstructing an existing separation experiment by Beck (1992) in DEMeter++ and comparing the simulation result with the experiment. Once validated, the practical use of the simulation framework to assess the sensitivity of separation to crop properties is illustrated.
ISSN: 0168-1699
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Division of Mechatronics, Biostatistics and Sensors (MeBioS)
Faculty of Bioscience Engineering
× corresponding author
# (joint) last author

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