MATHEMATICAL MODELING OF EAR GRAIN SEPARATION PROCESS DEPENDING ON THE LENGTH OF THE AXIAL FLOW THRESHING APPARATUS

Modeling the threshing and separation process involves the application of a method of description, analysis and analytical determination of system performance: threshing apparatus - working process. The modeling of the process of separating the seeds passing through an axial flow threshing device was performed taking into account that the separation function ss(x) is given depending on the length of the threshing apparatus. Then, models were made to describe the variation of the percentage (cumulative) of separated seeds ss (x=L), corresponding to the modification of the threshing apparatus functional parameters (depending on the peripheral speed of the rotor, the flow of straw parts and the moisture of straw parts).