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Abstract
In this paper the effectiveness of two stage vibration isolation on example of a vibratory conveyor has been shown. Vibratory conveyors are used for separating the casting from the mold in foundries. In the considered case the shake-out conveyor has been supported directly on the foundation. Due to that the high amplitudes of vibrations on the foundation has been observed, which are transmitted to the building structure. To reduce the vibration transmission from the conveyor to the foundation, two-stage vibration isolation has been applied. The mathematical model of two stage vibration isolation has been shown. Based on the results of calculations, simulations and measurements a significant reduction of vibrations at the building structure has been achieved.