Conference proceeding
3D discrete element model simulation of a sinkage test
2011 Society for Engineering in Agriculture Conference: Diverse Challenges, Innovative Solutions, pp.497-505
2011 Society for Engineering in Agriculture Conference: Diverse Challenges, Innovative Solutions (SEAg) (Gold Coast, Australia., 29/09/2011 - 30/09/2011)
01/2011
Metrics
6 Record Views
Abstract
Energy used for tillage processes accounts for a significant proportion of total energy usage in crop production. Understanding how tillage tool geometry affects performance will help with tillage tool design and selection. Modelling of soil-implement interaction is a complex process due to the variability within the soil profile, non-linear behaviour of the soil and the dynamic effects of soil flow. An approach which should be able to realistically simulate the tillage process is the technique of discrete element modelling (DEM). Some computer softwares have already been developed to simulate dynamic motion of the granular particles. EDEM is one such software able to simulate 3D DEM modelling of granular materials. To simulate the soil-tool interaction, appropriate DEM parameters of the soil particles must be used. In order to determine these appropriate 3D DEM parameters, a 2D sinkage test simulation conducted by Asaf et al. (2007) was replicated using EDEM. It was found that the solution in 3D using the same parameters gave a similar result but was very time consuming (taking 275 hours to solve). In order to reduce that computation time various size spheres were used and it was determined that a 3mm spherical particle with the same DEM parameters gave a similar result (within 6%) as that of 2 joined spheres clump but only took 31% of the computation time to provide the solution.
Details
- Title
- 3D discrete element model simulation of a sinkage test
- Creators
- M Ucgul - University of South AustraliaJ M Fielke - University of South AustraliaC Saunders - University of South Australia
- Publication Details
- 2011 Society for Engineering in Agriculture Conference: Diverse Challenges, Innovative Solutions, pp.497-505
- Conference
- 2011 Society for Engineering in Agriculture Conference: Diverse Challenges, Innovative Solutions (SEAg) (Gold Coast, Australia., 29/09/2011 - 30/09/2011)
- Publisher
- Engineers Australia
- Identifiers
- 991013044012502368
- Academic Unit
- Faculty of Science and Engineering
- Language
- English
- Resource Type
- Conference proceeding