Resumo

SNYMAN, J. A.  e  VERMEULEN, P. J.. The mathematical modelling of the motion of a horizontal vibrating screen supported by ROSTA oscillating mountings. R&D j. (Matieland, Online) [online]. 1992, vol.8, pp.25-33. ISSN 2309-8988.

A versatile mathematical model of the behaviour of a vibrating conveyor screen supported by ROSTA oscillating mountings is developed. The model allows for various configurations through the specification of different screen and vibrating motor characteristics, connecting rod lengths, torsional stiffnesses of suspension units and mounting positions and orientations. The model is implemented in a computer program which allows for the computation of the time variation of the reactions and couples at the foundation supports and the horizontal, vertical and angular displacements of the screen. The validity of the model is verified by comparison of the predicted behaviour against the experimentally determined motion of a real vibrating screen. The model may be used to prescribe mounting configurations which, subject to design constraints, give minimum transmission of forces into the supporting structure.

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