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STRUCTURAL ANALYSIS AND CONTROL OF VIBRATING HOPPERS FOR HARVESTED GRAPES IN A WINE CELLAR: A CASE STUDY

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Figure 1: Power spectral density of the acceleration measured at the hopper foot (left) and slab corner (right) for the second equipment
Figure 4: Modal identification results: (a) Identified modal parameters ; (b) Measured (green) and reconstructed (red) impulse responses.
Figure 6: Slab driving-point transfer functions computed by the physical model.
Figure 8: Computed transfer functions before (dash) and after (solid) the insertion of the isolator with characteristics defined by the minimization of Eq.(14)
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