Vibrations in engineering and technology

Sholoviy Yuriy – PhD, Associate Professor of the Department of Mechanics and Automation of Mechanical Engineering of the Lviv Polytechnic National University (S. Bandery str., 12, Lviv, Ukraine, 79013, e-mail: J-sholov@ukr.net).

Magerus Nadiya – PhD, Assistant of the Department of Mechanics and Automation of Mechanical Engineering of the Lviv Polytechnic National University (S. Bandery str., 12, Lviv, Ukraine, 79013, e-mail: maherusn@gmail.com)

The simulation of the process of leakage of finely dispersed bulk material from the conical bunker of the hopper during vibrational perturbation of the flow by a conical bottom on the basis of the Lorentz model, which allows describing the behavior of the bulk product under the action of vibration, is considered. Since the fine-dispersive SM under the influence of mechanical vibrations behaves in a similar way to the liquid, the most effective way of obtaining the Lorentz model was to deduce it from the Navier-Stokes equations. The dynamics of leakage of SM, the influence of the parameters of the well and vibration modes on the efficiency of the leakage process have been analyzed.

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 2. Pirozhkov D.N. (2008). Sviedieniie gidrodinamichieskoi modeli vibroozhizhennogo sypuchego matieriala k sistiemie Lorentsa [Reduction of the hydrodynamic model of a fluidized bulk material to the Lorentz system]. Viestnik Altaiskogo gosudarstviennogo agrarnogo univiersitieta, Barnaul - Bulletin of the Altai State Agrarian University, Barnaul, 8, 59-65 [in Russian].

 3. Sholovii Yu.P., Tymoshenko N.M. &  Magerus N.I. (2014). Modeliuvannia povedinky dribnodyspersnogo sypkogo materialu pid diieiu vibratsii u konichnii luntsi dozatora za dopomohoiu systemy Lorentsa [Modeling the behavior of finely dispersed bulk material under the action of vibration in a conical duct hole using the Lorentz system]. Tekhnologichni kompleksy - Technological complexes, 1, 109 – 117 [in Ukrainian].

 4. Rusanov S.A., Luniaka K. V. & Ardashev V.A. (2007). Niekotoryie tieorietichieskiie aspiekty protsessa vibrokipieniia [Some theoretical aspects of the process of vibrational boiling]. Vostochno-Yevropieiskii zhurnal pieriedovyh tiehnologii – Eastern European Journal of Advanced Technology, 6/5, 23 – 25 [in Ukrainian].

 5. Magerus N.I. (2016). Obgruntuvannia parametriv ta rezhymiv roboty vibratsiinyh obiemnyh dozatoriv dlia dribnodyspersnyh sypkyh materialiv [Justification of parameters and operating modes of vibration dispensers for fine particulate materials]. Extended abstract of candidate’s thesis. Lviv: «Oshchypok M.M.» [in Ukrainian].