Mechanical Properties Of Sunflower Seeds

Sunflower seed has attracted the researchers' attention because its' high nutrition oil. Shell breaking mechanics characteristics test and analysis of sunflower seeds,as to provide a theoretical basis for the pressing equipment and research on sunflower seeds. Through single factor test and orthogonal test of three factors and three levels, the loading direction,moisture content and loading rate as variable; the shell breaking force,breaking deformation with energy consumption are response index. By compared the significance and differences of the data results, finding the best loading mode of sunflower seeds.By single factor test, it was found that shell breaking force along the Y axial are minimum; breaking deformation and energy consumption along the Z axial are minimum..By orthogonal test, the linear models are established which are as follows: F=-0.29v-1.69c-17.1 d+138.4, S=-0.046v+0.011c0.29d+2. 043, E=-0.43v-1.09c-21.1d+112.7. These models can well describe the loading process of the sunflower seeds. The mechanics characteristic test of sunflower seeds provides a necessary mechanical basis for designing and researching of the related machinery and equipment.