Browsing by Author "Balabekova A."

Now showing 1 - 2 of 2
  • No Thumbnail Available
    Item
    Forced vibrations of the hopper of fertilizer applying machine
    (2018-01-01) Nukeshev S.; Slavov V.; Karaivanov D.; Balabekova A.; Zhaksylykova Z.
    The cultivation of crops is not only an important part of the economic sector of the state, but also the condition of food security of citizens. A key method of increasing yields is fertilizer in the soil. However, most machines cannot efficiently allocate and apply the fertilizer in the soil. In this regard, a dynamic model of the hopper of fertilizer applying machine is created. A methodology for determination of the natural frequencies of the mechanic system is proposed. Using matrix mechanics, equations for determining the kinetic and potential energy are derived. In the paper differential equations for description of forced small-amplitude vibrations of the system are composed and solved. Thanks to them the natural frequencies of the system are determined. The results are intended for research and optimization of a real machine, developed in KazATU – Astana, Republic of Kazakhstan.
  • No Thumbnail Available
    Item
    Theoretical investigation of a conic-helical loosener for fertilizer applying machine Teorijsko ispitivanje konično-helikoidnog rasipača stroja za umjetno gnojivo
    (2017-01-01) Nukeshev S.; Eskhozhin D.; Karaivanov D.; Eskhozhin K.; Balabekova A.; Zhaksylykova Z.; Zolotukhin Y.
    The paper reveals that the available facilities of granular fertilizer applying do not completely meet the technical requirements. In order to ensure stable and reliable dosing of fertilizers it is necessary to destroy the arch obtained above the hopper outlet and to provide forced feeding of the material (fertilizer) to the feeder (measuring device). The goal of the study is selection of optimum parameters of the fertilizer applying machine conic-helical loosener. The theoretical researches carried out allow to establish the relation between the motion (speed and displacement) of the material (fertilizer) elementary particles along the coils of the springs and the loosener design and technological parameters (the angle between the generant and axis-cones, the helix angle of spring coils, the cone base radius, the coefficients of external and internal friction, the angular speed). By varying each one of the parameters their optimum combination could be selected depending on the accepted loosener efficiency criterion.