The relevance of this study is conditioned upon the need to increase the amount of high-quality seed material of small-seeded crops, which cannot be achieved without an important process of separation. The separation is based on technical and technological principles of separation of seed material, depending on the differences in physical and mechanical properties of individual components of seed material. Cylindrical triers are used to separate seeds according to their length. The purpose of the study was to find the theoretical regularities of changes in the technological parameters of separation of the seed material of small-seeded crops from the structural and mode parameters of a cylindrical seed trier by numerical modelling. The solution of the set problems was implemented in the STAR-CCM+ programme based on the finite element method. Considering the physical and mechanical properties of the seed material, as a result of the study, a visualisation of the separation process was obtained depending on the research factors: the rotation frequency of the trier cylinder, the diameter of the cylinder, and the number of seeds and impurities in the seed mixture. According to the simulation results, the dependence of the relative content of impurities ε on factors under study was obtained in the form of second-order regression equations. Using the Mathematica programme, a compromise problem was solved, which lies in minimising the multiplicative function of the research criteria, and the rational constructive and technological parameters of the trier separator were found. The material of this paper is intended for scientists, graduate students, designers of agricultural machinery, students, and specialists in agricultural production.
mechanisation, separators, seed material, separation process
[1] Aliiev, E., & Lupko, K. (2021). Prerequisites for the creation of a mechatronic system of indented cylinders for theseparation of fine seeds. Scientific Horizons, 24(3), 75-86.
[2] Broas, P. (2001). Advantages and problems of CAVE-visualisation for design purposes. In M. Lehtonen (Ed.), Virtualprototyping VTT research programme 1998-2000 (pp. 73-81). Otaniemi: Technical Research Centre of Finland.
[3] Bai, C. (1996). Modelling of spray impingement processes. (Doctoral thesis, University of London, London, Great Britain).
[4] Kubicki, D., & Lo, S. (2012). Slurry transport in a pipeline – comparison of CFD and DEM models. In Ninthinternational conference on CFD in the minerals and process industries (pp. 1-6). Melbourne: University of Melbourne.
[5] Han, S.W., Lee, W.J., & Lee, S.J. (2012). Study on the particle removal efficiency of multi inner stage cyclone by CFDsimulation. World Academy of Science, Engineering and Technology, 6, 411-415.
[6] Satish, G., Ashok, K.K., Vara, P.V., & Pasha, S.M. (2013). Comparison of flow analysis of a sudden and gradual changeof pipe diameter using fluent software. International Journal of Research in Engineering and Technology, 2, 41-45.
[7] Ivanets, V.N., Bakin, I.A., & Belousov, G.N. (2002). Entropy approach to the evaluation of the process of mixing bulkmaterials. Storage and Processing of Agricultural Raw Materials, 11, 16-18.
[8] Bakin, I.A., Belousov, G.N., & Sablinsky, A.I. (2001). Modeling of the mixing process by the entropy-information method. In New technologies in scientific research in education: Materials of the All-Russian scientific-practical conference (pp. 34-40). Yurga: Yurga Technological Institute.
[9] Iguchi, M., & Ilegbusi, O.J. (2014). Basic transport phenomena in materials engineering. Dordrecht: Springer.
[10] Shevchenko, I., Aliev, E. (2018). Research on the photoelectronic separator seed supply block for oil crops. INMATEH-Agricultural Engineering, 1(54), 129-138
[11] Grzhybovsky, A. (2008). The choice of a statistical criterion for testing hypotheses. Human Ecology, 11, 48-57.
[12] Mocny, F. (2019). Analysis of nonparametric and parametric criteria for testing statistical hypotheses testing. Statistics of Ukraine, 1, 13-23.
[13] Prishenko, O., Chernogor, T., & Buhkalo, S. (2019). Some features of correlation analysis. In Information technology: Science, technology, technology, education, health (pp. 320-322). Kharkiv: V. N. Karazin Kharkiv National University.
[14] Buhkalo, C., Iglin, S., Glavcheva, Y., & Miroshnichenko, N. (2018). Possibilities of determining the components of complex projects. Bulletin of the National Technical University “KhPI”, 40, 46-52.
[15] Dreyper, N. (2006). Applied regression analysis. Moscow: Finance and statistics.
[16] Buus, O.T. (2013). Analysis of the indented cylinder by the use of computer vision (Doctoral thesis, University of Southern Denmark, Aarhus, Denmark).
[17] Tsysar, M. Zakora, O. Babak, A., Ivakhnenko, S., & Zanevsky, O. (2021). Dependence of the static strength of type Ib single crystal diamonds with octahedral habit on their size . Scientific Herald of Uzhhorod University. Series "Physics", 50, 25-30.