RT journal article
T1 Design Optimization of Three-Layered Metamaterial Acoustic Absorbers Based on PVC Reused Membrane and Metal Washers
A1 Ciaburro, Giuseppe
A1 Parente, Rosaria
A1 Iannace, Gino
A1 Puyana Romero, Virginia
K1 membrane-type acoustic metamaterial
K1 artificial neural network
K1 Kundt’s tube
K1 sound absorption
K1 PVC
K1 metal washers
AB Waste management represents a critical issue that industrialized countries must necessarily deal with. Sustainable architecture involves the reuse of materials with the aim of significantly reducing the amount of waste produced. In this study, a new layered membrane metamaterial was developed based on three layers of a reused PVC membrane and reused metal washers attached. The membranes were fixed to a rigid support, leaving a cavity between the stacked layers. The samples were used to measure the sound absorption coefficient with an impedance tube. Different configurations were analyzed, changing the number of masses attached to each layer and the geometry of their position. These measurements were subsequently used to train a model based on artificial neural networks for the prediction of the sound absorption coefficient. This model was then used to identify the metamaterial configuration that returns the best absorption performance. The designed metamaterial behaves like an acoustic absorber even at low frequencies.
PB MDPI
SN 2071-1050
YR 2022
FD 2022-04
LK http://hdl.handle.net/10498/27461
UL http://hdl.handle.net/10498/27461
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 06-nov-2026