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Efficient Particle Simulation Using a Two-Phase DEM-Lookup Approach

: Jahnke, J.; Steidel, S.; Burger, M.; Simeon, B.


Kecskeméthy, A.:
Multibody Dynamics 2019 : Proceedings of the 9th ECCOMAS Thematic Conference on Multibody Dynamics, 15-18 July 2019, Duisburg, Germany
Cham: Springer International Publishing, 2020 (Computational methods in applied sciences 53)
ISBN: 978-3-030-23131-6 (Print)
ISBN: 978-3-030-23132-3 (Online)
Thematic Conference on Multibody Dynamics <9, 2019, Duisburg>
European Commission EC
EFRE; 84002745
Simulations- und Softwarebasierte Innovationen für die Entwicklung von Nutzfahrzeugen
Fraunhofer ITWM ()

We present a fast, data-based approach to predict soil-tool forces. In an expensive offline phase, we perform time-consuming particle simulations based on the Discrete Element Method (DEM). Relevant tool parameters, more specifically cutting depth, angle of incidence and velocity in longitudinal direction are varied to obtain a significant data range of the tool forces and moments. The data is stored in a structure, which we call a Lookup Table (LUT). In an online phase, we use the tool parameters to access the Lookup Table data and to obtain a meaningful approximation of the soil-tool interaction forces.