Modelling of the Working Process of Vibratory Conveyors Applied in the Metallurgical Industry

Bednarski, Łukasz; Michalczyk, J.

doi:10.1515/amm-2017-0109

Cited by 9 publications

(5 citation statements)

References 6 publications

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“…Vibration machines have become widely used in various fields of production and engineering, which is confirmed by research of Bednarski et al [1], Filimonikhin et al [2], Nadutyi et al [3]. This indicates the relevance and current importance of the use of vibration technique.…”

Section: Introductionmentioning

confidence: 79%

Analytical Model of the Two-Mass Above Resonance System of the Eccentric-Pendulum Type Vibration Table

Lanets

Dmytriv

Borovets

et al. 2020

International Journal of Applied Mechanics and Engineering

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The article deals with atwo-mass above resonant oscillatory system of an eccentric-pendulum type vibrating table. Based on the model of a vibrating oscillatory system with three masses, the system of differential equations of motion of oscillating masses with five degrees of freedom is compiled using generalized Lagrange equations of the second kind. For given values of mechanical parameters of the oscillatory system and initial conditions, the autonomous system of differential equations of motion of oscillating masses is solved by the numerical Rosenbrock method. The results of analytical modelling are verified by experimental studies. The two-mass vibration system with eccentric-pendulum drive in resonant oscillation mode is characterized by an instantaneous start and stop of the drive without prolonged transient modes. Parasitic oscillations of the working body, as a body with distributed mass, are minimal at the frequency of forced oscillations.

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Section: Introductionmentioning

confidence: 79%

Analytical Model of the Two-Mass Above Resonance System of the Eccentric-Pendulum Type Vibration Table

Lanets

Dmytriv

Borovets

et al. 2020

International Journal of Applied Mechanics and Engineering

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“…These vibrators are exciting for vibrations a frame suspended on a spiral springs system. The conveyor trough together with the feed [18,19] is suspended on the frame, by means of the leaf springs system allowing for the relative motion of the trough and frame only along τ axis.…”

Section: Simulation Investigationsmentioning

confidence: 99%

Analysis of a New Vibratory Conveyor Allowing for a Sudden Stopping of the Transport

Czubak

Lis

2020

Teh. vjesn

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The new solutions of a vibratory conveyor utilised for transporting -with variable velocities -loose materials or objects of small dimensions, were analysed in this study. This vibratory conveyor has a possibility of immediate suspension of the feed material flow without the necessity of the drive switching off. Up to the present, this type of solution was realised by means of an expensive electromagnetic exciter. The conveyor analysed in this paper is induced to vibration by a significantly cheaper and often employed electro-vibrator. Such solution has not been applied for suspension of transport so far in the industry, while it is essential at discontinuous operations of the conveyor, especially at the feed dosage. This solution allows to design cheap production lines within which the conveyor will realise not only continuous transport. Values of amplitudes of the trough and applied eliminator in dependence of the excitation frequency were analytically determined. The results were confirmed by the simulation analysis of the device. The whole model of the conveyor together with the loose feed was investigated by the simulation analysis of the feed transport velocity in dependence of the excitation frequency of the system. The obtained results are very satisfactory and provide the basis for further investigation of the conveyor in a laboratory set-up.

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“…It is founded that particles with high restitution bounce forward and backward repeatedly, while particles with low restitution only bounce forward due to the phase angle of the oscillating plate and impulse during particle collision. In the work of Bednarski [6], the suitability of existing vibratory transport models for the metallurgical industry is examined. The analysis reveals that these models neglect the influence of air flow through the feed layer, leading to reduced transport velocity when handling dusty and powdery fractions.…”

Section: Introductionmentioning

confidence: 99%

Extension of the bouncing ball model to a vibratory conveying system

Schiller,

Steiner,

Schagerl

2023

Nonlinear Dyn

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Various special effects occur during the operation of vibratory conveyors, e.g., multiple feeding velocities at the same excitation amplitude or so-called microthrows. In this work, a model for the simulation and prediction of the behavior of such a conveying system is presented. The simulation model is based on the bouncing ball model which is known from literature. The introduced impact law is coupled in horizontal direction by a frictional force which enables modeling a feeding process. The mentioned effect of multiple feeding velocities is studied with the developed simulation model. For the estimation of the critical excitation amplitude where a second feeding velocity appears, an analytical approach is developed. The corresponding feeding velocity can also be calculated with this approach. Moreover, the sensitivity of the initial conditions is investigated and criteria for the estimation are found. These can be applied to optimally adjust the conveyor in practice. Furthermore, the effects of microthrows are studied and analytical formulas for the estimation of characteristic values of the microthrows are derived. The dragging process following a sequence of microthrows is also investigated. All the developed formulas are validated by the simulation model.

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Modelling of the Working Process of Vibratory Conveyors Applied in the Metallurgical Industry

Cited by 9 publications

References 6 publications

Analytical Model of the Two-Mass Above Resonance System of the Eccentric-Pendulum Type Vibration Table

Analytical Model of the Two-Mass Above Resonance System of the Eccentric-Pendulum Type Vibration Table

Analysis of a New Vibratory Conveyor Allowing for a Sudden Stopping of the Transport

Extension of the bouncing ball model to a vibratory conveying system

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