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Design Optimization of Three-Layered Metamaterial Acoustic Absorbers Based on PVC Reused Membrane and Metal Washers

Author

Listed:
  • Giuseppe Ciaburro

    (Department of Architecture and Industrial Design, Università degli Studi della Campania Luigi Vanvitelli, Borgo San Lorenzo, 81031 Aversa, Italy)

  • Rosaria Parente

    (Benecon University Consortium, 80138 Naples, Italy)

  • Gino Iannace

    (Department of Architecture and Industrial Design, Università degli Studi della Campania Luigi Vanvitelli, Borgo San Lorenzo, 81031 Aversa, Italy)

  • Virginia Puyana-Romero

    (Department of Sound and Acoustic Engineering, Universidad de Las Américas, Quito EC170125, Ecuador
    Institute of Applied Linguistics, Laboratory of Phonetics and Acoustics, Universidad de Cádiz, 11002 Cádiz, Spain)

Abstract

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.

Suggested Citation

  • Giuseppe Ciaburro & Rosaria Parente & Gino Iannace & Virginia Puyana-Romero, 2022. "Design Optimization of Three-Layered Metamaterial Acoustic Absorbers Based on PVC Reused Membrane and Metal Washers," Sustainability, MDPI, vol. 14(7), pages 1-20, April.
    • Handle: RePEc:gam:jsusta:v:14:y:2022:i:7:p:4218-:d:785627
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    References listed on IDEAS

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    1. Jun Mei & Guancong Ma & Min Yang & Zhiyu Yang & Weijia Wen & Ping Sheng, 2012. "Dark acoustic metamaterials as super absorbers for low-frequency sound," Nature Communications, Nature, vol. 3(1), pages 1-7, January.
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    Cited by:

    1. Carmine Gambardella & Rosaria Parente & Anna Scotto di Santolo & Giuseppe Ciaburro, 2022. "New Digital Field of Drawing and Survey for the Automatic Identification of Debris Accumulation in Flooded Areas," Sustainability, MDPI, vol. 15(1), pages 1-23, December.
    2. Cinzia Buratti & Francesca Merli, 2022. "Sustainable Materials for the Thermal and Noise Insulation of Buildings: An Editorial," Sustainability, MDPI, vol. 14(9), pages 1-2, April.

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