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Simulation of soil dynamic properties of a seed opener using the discrete element method (DEM) CIGR Journal
Chen, Ying; Gao, Qun; Zhou, Haibo; Sadek, Mohammad A..
Soil disturbance and draft force are important soil dynamic properties and performance indicators for a seed opener. In this study, a soil-opener model was developed to simulate soil dynamic properties of a hoe type seed opener using the discrete element method (DEM). To validate the model, a paired-row hoe opener was tested in a sandy loam soil at a working depth of 40 mm and a travel speed of 7 km/h. Soil disturbance characteristics (maximum soil surface roughness and soil cover depth) and draft force of the opener were measured. The model results agreed well with the test results, with relative errors under 10%. The validated model was used to compare the soil dynamic properties among a single-row opener, a side-band opener, and a paired-row opener. The...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Agricultural machinery Disturbance dynamics; Force; Hoe; Opener; DEM; PFC; Soil.
Ano: 2015 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3227
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