Modelación de la interacción suelo-paratill mediante el método de elementos discretos
Fecha
2018-07
Autores
Camacho Marín, Milena
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Editor
Universidad Central "Marta Abreu" de Las Villas. Facultad de Ciencias Agropecuarias. Departamento de Ingeniería Agrícola
Resumen
En el presente trabajo se realiza una investigación sobre la interacción del suelo con
un implemento de tipo paratill empleando el método de elementos discretos. El
modelo se realiza en el software EDEM donde se implementan tres modelos de
suelo que responden a diferentes geometrías de partículas, los modelos se definen
con las mismas propiedades físicas y mecánicas del suelo. Se diseña además el
paratill y se simula el movimiento del mismo a través de los tres bloques de suelo.
Los resultados mostraron los patrones de movimiento de las partículas de suelo así
como los posibles valores de esfuerzos durante el proceso de labranza. Se realiza
además el análisis resistivo del implemento así como la influencia del diámetro de
las partículas en la precisión de los resultados. Finalmente se verifica el modelo
mediante formulaciones de la mecánica de suelo mostrando su validez.
I n the present work a research on the interaction of the soil with a n implement type paratill was doing using the Discrete Element Method. The model is made in EDEM software, where three soil models are implemented that respond to different particle geometries, the models are defined with the same physical and mechanical properties of the soil. The shape of the paratill is also designed, and its the movement is simulated through the three blocks of soil. The results showed the movement patterns of the soil particles as well as the possible stress values during the tillage process. The implement resistive analysis is also carried out, as well as the influence of the diameter of the particles on the precision of the results. Finally the model is verified by formulations of soil mechanics showing its validity.
I n the present work a research on the interaction of the soil with a n implement type paratill was doing using the Discrete Element Method. The model is made in EDEM software, where three soil models are implemented that respond to different particle geometries, the models are defined with the same physical and mechanical properties of the soil. The shape of the paratill is also designed, and its the movement is simulated through the three blocks of soil. The results showed the movement patterns of the soil particles as well as the possible stress values during the tillage process. The implement resistive analysis is also carried out, as well as the influence of the diameter of the particles on the precision of the results. Finally the model is verified by formulations of soil mechanics showing its validity.
Descripción
Palabras clave
Suelo, Labranza, Simulación, Aperos