Study of the dynamic stability of the belt conveyor adaptive drive

Abstract

Dynamic stability of the adaptive hydraulic drive of the belt conveyor is studied with the help of an improved mathematical model constructed taking into account the physical processes that occur during the mechanical system of the conveyor under load changes. The parameters of the adaptive drive, which provide stable operation of the mechanical system in conditions of its overload, are determined.Streszczenie. Dynamiczna stabilność adaptacyjnego napędu hydraulicznego przenośnika taśmowego jest badana za pomocą ulepszonego modelu matematycznego skonstruowanego z uwzględnieniem fizycznych procesów zachodzących podczas mechanicznego systemu przenośnika pod zmianą obciążenia. Określono parametry napędu adaptacyjnego, zapewniające stabilną pracę układu mechanicznego w warunkach jego przeciążenia.. (Badanie stabilności dynamicznej napędu adaptacyjnego przenośnika taśmowego).

Dynamics of the Conveyor Speed Stabilization System at Variable Loads

“…Theoretical studies of the dynamic processes of the SSS of the conveyor for the action of variable loads were carried out by methods of physical and mathematical modeling. The solution of the improved mathematical model was performed using the software package MATLAB Simulink, which was used in previous studies of the hydraulic system [2,12,13]. 0.1% modeling accuracy and the 2nd order Rosenbrock research method have proven to be a qualitative way to calculate such systems.…”

“…1). D'Alembert's principle is applied to the forces acting on the moving elements of the mechanical system and the balance of the working fluid flow [13]. In the differential equations of change of the moment of forces of useful resistance, action of forces of viscous friction on rotating elements of hydraulic motors, change of directions of movement of working liquid in the course of work of CD, energy dissipation during movement of moving elements of system are considered.…”

“…The given mathematical model is an improved model of the adaptive hydraulic drive of the belt conveyor, the hydraulic system of which works in the mode of constant liquid consumption [13,14].…”

“…To increase the productivity of conveyors operated in the above conditions, it is proposed to use built-in hydraulic actuators with a control system for switching on an additional hydraulic motor. This will ensure uninterrupted operation, as well as greatly simplify the kinematic scheme according to the work [9,13,18]. Such drives work in the mode of constant supply of working liquid therefore the hydraulic system does not allow to provide stability of speed of movement of a belt of the conveyor [8,10].…”

Application of Hydraulic Automation Equipment for the Efficiency Enhancement of the Operation Elements of the Mobile Machinery

“…Analysis of the conditions of the hydraulically driven systems operation showed that the inertial loading, torsional shiffness, volume of the pressure pipe and the character of the load change influence the transient processes of the hydraulically driven installation [20].…”