Engineering Mechanics

Proceedings Vol. 21 (2015)

ENGINEERING MECHANICS 2015

Copyright © 2015 Institute of Theoretical and Applied Mechanics, Academy of Sciences of the Czech Republic, v.v.i., Prague

 

R. Sigalingging, D. Herák, A. Kabutey
pages 276 - 277, full text

Detailed knowledge of mechanical behaviour of oilseeds such as rapeseeds under compression loading is ideal for development of more cost-effective technology for production of oil. The tangent curve mathematical model based on MathCAD software was used to describe the deformation characteristic curves of rapeseeds of moisture content 11.07 (% w. b.) at different pressing force and speed. Compressive force ranged between 100 and 200 kN whiles the speed varied from 10, 30 to 60 mm·min-1. Pressing vessel diameter 100 mm was used to measure the bulk rapeseeds at pressing height 80 mm where the dependency between force and deformation characteristics curves was described in relation to speed and pressing heights between 30 mm and 80 mm at constant compressive force 100 kN. Based on the statistical analysis of the experimental data, the tangent curve model suitably described the force-deformation characteristic curves of bulk rapeseeds. The fitted model was dependent on force and deformation coefficients of mechanical behaviour of the tangent curve mathematical model. Tangent curve function Experimentally, the relationship between force and deformation of bulk oilseed such as rapeseeds can be described by function (Eq.1). F ( x) = A ! [tan( B ! x)]

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