Mathematical model of cleaning potatoes on surface of spiral separator
Laen...
Failid
Kuupäev
2018
Kättesaadav alates
Autorid
Bulgakov, V.
Nikolaenko, S.
Arak, Margus
Holovach, I.
Ruzhуlo, Z.
Olt, Jüri
Ajakirja pealkiri
Ajakirja ISSN
Köite pealkiri
Kirjastaja
Abstrakt
Cleaning potato tubers from soil impurities and plant debris after digging them out of
soil is a topical problem in the work process of potato production. Therefore, the
engineer
ing of
new designs of
potato heap separators necessitates the further studying of them and the
optimisation of their kinematic and design parameters, which must not only ensure the high
quality of cleaning, but also rule out the possibility of damaging the
tubers. The aim of this study
is to determine the design and kinematic parameters of the improved design of the spiral potato
separator, which will ensure the high quality of cleaning and rule out the possibility of damaging
the tubers, on the basis of th
e development of the new theory of potato tuber’s motion on the
surface of the separator. An analytical study has been carried out resulting in the construction of
the equivalent schematic model of the interaction between the potato tuber and separator, th
e
tuber being approximated by a material point on the surface formed by the two cantilevered
spirals, which are the separator’s tools. The separator’s spirals are driven to rotate and at the same
time they can perform oscillations in the vertical and axial
plane under the action of the varying
load generated by the continuous feeding of the potato heap for separation. In the model, the
forces acting on the potato tuber’s body are applied to it, the coordinate axes that have been
selected and appropriately o
riented are shown. A system of equations has been set up for the
constructed equivalent schematic model, comprising three differential equations of the potato
tuber body’s motion on the surface of the trough formed by the two cantilevered spirals. The
dete
rmined kinematic and design parameters will allow to raise the quality of cleaning potato
tubers from
soil impurities and plant debris.
.
Kirjeldus
Article
Märksõnad
potato, tuber, separation, impact interaction, impact impulse, rational parameters, articles