Nowadays it is crucial to design environmentally friendly solutions exploiting recycled materials. From this point of view, paper and cardboard can be easily recovered and are largely available in dump sites. From an acoustic point of view, such materials are usually lightweight and do not possess structural properties. These characteristics can be improved by wisely merging different types of cardboard and paper products forming a sandwich structure. The analytical approach used for the characterisation of the sandwich panels is based on the wave propagation approach. This manuscript aims to show how it is possible to derive the sound reduction index and the transfer matrix elements of such structures through a simple test procedure. The same procedure can be easily used to design a sandwich panel possessing certain acoustic properties through an inverse procedure.
SOUND REDUCTION INDEX OF CARDBOARD PANELS FEATURING A HONEYCOMB PAPER CORE
Garcia J. J.
;Tonetti D.;Piana E. A.
2024-01-01
Abstract
Nowadays it is crucial to design environmentally friendly solutions exploiting recycled materials. From this point of view, paper and cardboard can be easily recovered and are largely available in dump sites. From an acoustic point of view, such materials are usually lightweight and do not possess structural properties. These characteristics can be improved by wisely merging different types of cardboard and paper products forming a sandwich structure. The analytical approach used for the characterisation of the sandwich panels is based on the wave propagation approach. This manuscript aims to show how it is possible to derive the sound reduction index and the transfer matrix elements of such structures through a simple test procedure. The same procedure can be easily used to design a sandwich panel possessing certain acoustic properties through an inverse procedure.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
