Наукові горизонти (May 2019)

PROGRESSION, DEFORMATION AND GRAINS MICRO INJURY ACCORDING TO ELIPSOID EQUIPMENT EQUALIZATION

  • D. Derevjnko,
  • E. Sukmaniuk,
  • S. Chychylyuk,
  • O. Derevjnko

DOI
https://doi.org/10.33249/2663-2144-2019-78-5-16-22
Journal volume & issue
Vol. 78, no. 5
pp. 16 – 22

Abstract

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Deformation formalization and seeds micro injury whose surface is described by a rotation ellipsoid is given by the equation of its rotation. After single and double differentiation of the deformation expression of the grains part volume, simplification, designations, minimization of acceleration energy, elastic and viscous properties of grains which are represented by the first and the second components of the differential equations system describing the grains deformation according to the configuration of the rotation ellipsoid are variables that significantly affects the deformation and seeds micro injury. For independent parameters with the help of which we optimize the acceleration energy of grains to minimize the passage of the deformation process and the seeds micro injury we accept the angular and steady acceleration of the grains part deformation and the angular acceleration at the point of grains contact with the distributor spherical surface. The experimental, industrial and laboratory studies results conducted in PE "Ukraine" of Zhytomyr region show that that during the threshing by a drum threshing machine the amount of macro injuried seeds increased to 6.4%, and after the rotor did to 3.1%, that is more than twice. Total micro injuried seeds after threshing by a drum was 54.0%, and after rotary one was 23.0%, that is, the difference is more than twice. Such kind of situation is explained primarily by the different working modes of these working bodies, as for the grain pile arrival and passing and the mechanical loads on grains, which leads to their injury. Similar results of the seeds injuries were obtained at other enterprises of Vinnitsa and Cherkasy regions, where different types of winter wheat and winter rye were studied, with the difference in weather and climatic conditions, different levels of cultivation agriculture and the technological process implementation organization.

Keywords