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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)
S.425-432
Thematic Conference on Multibody Dynamics <9, 2019, Duisburg>
Englisch
Konferenzbeitrag
Fraunhofer ITWM ()

Abstract
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.

: http://publica.fraunhofer.de/dokumente/N-559258.html