| Autor: |
Attila Csatár, István Oldal, László Fenyvesi, Istvan Keppler, Zoltán Hudoba |
| Rok vydání: |
2015 |
| Předmět: |
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| Zdroj: |
Engineering Computations. 32:308-328 |
| ISSN: |
0264-4401 |
| Popis: |
Purpose – The analysis of the effect of tool vibrations on the measured and simulated draught forces of cultivator tools. This paper aims to discuss this issue. Design/methodology/approach – Soil bin measurements and discrete element method (DEM)-based simulations. Findings – The soil-tool interaction induced free vibrations of cultivator tools have significant impact on the measured draught force, and the simulations made by using vibrating tools give similar results. Research limitations/implications – Accurate calibration of discrete element model parameters can be done based on the reproduction of the whole Mohr-Coulomb failure line. Draught force ratio – velocity ratio values seem to be independent of tool geometry and soil conditions in case of velocity ratio higher than 2. Practical implications – DEM-based numerical simulations can be used for modeling the effect of tool vibration on the draught force values. During discrete element simulations of soil-tool interaction, the effect of tool vibration may not be neglected. Originality/value – The paper demonstrates that during the discrete element modelling of the soil-tool interaction, the tool vibration phenomenon should not be neglected. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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