DRAFT PREDICTION MODELS FOR SOIL ENGAGING TINES IN TWO SOILS OF RIO GRANDE DO SUL, BRAZIL

作者：Machado Antonio L T^*; Trein Carlos R

来源：Engenharia Agricola, 2013, 33(1): 167-175.

• chiselling
• draft requirement
• soil dynamics

The draft forces of soil engaging tines and theoretical analysis compared to existing mathematical models, have yet not been studied in Rio Grande do Sul soils. From the existing models, those which can get the closest fitting draft forces to real measure on field have been established for two of Rio Grande do Sul soils. An Albaqualf and a Paleudult were evaluated. From the studied models, those suggested by Reece, so called "Universal Earthmoving Equation", Hettiaratchi and Reece, and Godwin and Spoor were the best fitting ones, comparing the calculated results with those measured "in situ". Allowing for the less complexity of Reece's model, it is suggested that this model should be used for modeling draft forces prediction for narrow tines in Albaqualf and Paleudut.

• 出版日期2013-2