In this work an investigation on the damping properties and transmission of metal foam samples is proposed. The specimens are composed of metal foam aluminium T6101 -T6, both in the supply conditions and after partial covering with epoxy-polyester resin. The data analysis is performed through a statistical approach based on power spectral densities: Auto-Spectral-Density and Cross-Spectral Density. The coherence function allows to check the quality of the measurements. The damping is evaluated by the half power bandwidth technique and by logarithmic decay measurement.
Marotta, E., Salvini, P., Trotta, ., Vivio, F., F, ., Fanelli, P. (2015). Trattamento Per Incrementare Le Proprietà Smorzanti Di Schiume Metalliche A Celle Aperte. In Atti del 44° Convegno AIAS.
Trattamento Per Incrementare Le Proprietà Smorzanti Di Schiume Metalliche A Celle Aperte
MAROTTA, EMANUELE;SALVINI, PIETRO;VIVIO, FRANCESCO;
2015-01-01
Abstract
In this work an investigation on the damping properties and transmission of metal foam samples is proposed. The specimens are composed of metal foam aluminium T6101 -T6, both in the supply conditions and after partial covering with epoxy-polyester resin. The data analysis is performed through a statistical approach based on power spectral densities: Auto-Spectral-Density and Cross-Spectral Density. The coherence function allows to check the quality of the measurements. The damping is evaluated by the half power bandwidth technique and by logarithmic decay measurement.| File | Dimensione | Formato | |
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