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Abstrakt

The hereby paper is devoted to the analysis of operational properties of vibratory conveyors, which principle of operations is based on the Frahm’s dynamic elimination effect (Den Hartog, 1971). These conveyors, according to the data given by their producers have several advantages, among others, higher vibrations amplitudes at the same drive and exceptionally low dynamic forces transmitted to the foundation. The simulation model of such conveyor loaded with a feed was created in this work and investigations of the transport efficiency and forces transmitted to the foundation at stationary states as well as at start up and coasting periods were performed. Analytical tests of vibrations during unsteady motion periods were also performed and the method of determining maximum amplitudes of conveyors in the transient resonance during coasting was proposed. The research results indicate the possibility of a wide application of this type of machines in loose materials handling in various industry branches.
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