Name
Marchenko Alexey Yurievich
Scholastic degree
•
Academic rank
associated professor
Honorary rank
—
Organization, job position
Kuban State Agrarian University
Web site url
—
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Articles count: 14
Analytical research results of contact forces of interaction of concentrated forages components’ particles in their movement in relative screw drums are presented. It is shown that contact forces – the most difficult forces by their nature; result from stochastic (probable) collision of bulks particles and in particular of concentrated forages components’ particles. Therefore the main objective of this modeling – to describe the stochastic phenomena of the so-called conditional contacts of particles for which some assumptions are accepted, for example, in forcing of mass of concentrated forages components’ particles by the walls of the rotating relative screw drum in the radial direction there will simultaneously arise contacts caused by geometry of a screw drum, i.e. the property of its walls is pressure transfer in relation to the mass of particles in the direction of the modeled movement. Schemes of engagement of concentrated forages components’ particles contacting in the relative screw drum, the probable schedule of sliding speeds values change in their consecutive contacting, their density distribution are demonstrated
The article presents the results of studying of prospects
of use of the relative screw and combined drums in
agro-industrial complex. The developed and approved
classification of the relative screw and combined drums
has been shown in expanded form. The kinds of the
equipment on the basis of the relative screw and
combined drums making a rotary motion in which the
oscillating motion with a big amplitude, only at the
expense of an original spatial form of their internal
surfaces is reported to subjects of processing are
presented. In such devices, there are no vibroactivators.
Equipment samples in which the relative screw and
combined drums aren't rotated are also presented. They
are fixed elastically on the bed and are supplied with
vibroactivators. During the operation of the
vibroactivator, processing subjects in such cars, as a
result of the circulating movement in the relative screw
and combined drums in the planes, perpendicular axes
of their symmetry, receive the additional movement
from the walls of drums of various geometrical forms
inclined to each other
Improvement is offered for working bodies’ forms in
devices for preparation of forages by methods of
engineering geometry and computer graphics. That
opens not only great opportunities for intensification,
increase in productivity and efficiency of the
technological processes, but also opens ways for
creation of small-sized devices for their realization.
Constructive study of geometry of working bodies
surface, allows us to give wavy movement to particles
of forage and impart them the movement with bigger
power consumption. In such installations forage
particles components, meeting walls of working body,
change their direction and, meeting other portions of
particles of forage components, mix up. From loading
to unloading, throughout the installations working
body length, flexible and strong waves of forage
particles components movement inside the working
body are born. The conducted pilot studies have
shown that as a result of working bodies’ forms
improvement of devices for preparation of forages by
methods of descriptive geometry such devices can be
implemented in a variety of industries
The article presents the results of the analytical
research of the movement of components of forages in
screw drums on the example of relative reels of
Rts7.1.A and Rts5.1a having the next feature: on the
perimeter, we have obviously expressed conditionally
cylindrical screw lines formed. The carried-out
analysis of the movement of particles of components
of forages in relative screw drums and the executed
review of mathematical models in relation to the
movement of components of forages in relative screw
drums, including a model of a continuous stream of
particles of components of forages, a model of power
balance of the movement of a continuous stream of
particles of components of forages, a model of the
movement of components of forages as a material
point has been shown. Analytical dependences for
determination of longitudinal speed of movement of
components of forages and the length of a relative
screw drum are presented. The article examines
specified settlement models of the movement of
components of forages in relative screw drums