Sound absorption performance of biobased Miura-ori origami panel absorbers made from impermeable paper membrane

Čurović, Luka (avtor), Železnik, Anže (avtor), Hvastja, Andrej (avtor), Trojer, Jonas (avtor), Brojan, Miha (avtor), Prezelj, Jurij (avtor)

This study examines the potential of sustainable, biobased paper-based structures as panel/membrane sound absorbers. Although intact paper is naturally impermeable and a poor sound absorber, transforming it into complex three-dimensional origami geometries, specifically the Miura-ori pattern, could produce effective panel/membrane absorbers. Three distinct Miura-ori samples (A, B, and C) were fabricated with increasing geometric complexity, ranging from a simple triangular prism to a complex labyrinthine waveguide. The random incidence sound absorption coefficients of these samples were measured in a validated small-scale reverberation room. The underlying absorption mechanisms were further investigated through modal analysis and non-contact vibration velocity mea- surements. The results indicate that increased geometric complexity enhances acoustic performance. Sample C, the most complex structure, demonstrated the most consistent broadband absorption. The analysis confirmed a significant positive correlation between acoustic pressure modes, surface vibration velocity, and sound absorption peaks, indicating that acoustic energy dissipation is driven by the vibrational response of the paper mem- brane coupled with resonant modes in the air gap. This research demonstrates that tunable origami folding techniques using intact paper can be used to design lightweight acoustic treatments for diffuse sound fields in the mid-frequency range.

• Jezik: Angleški jezik
• Ključne besede: sound absorption, random incidence sound absorption coefficient, biobased material, origami-based lightweight panel, Miura-ori structure
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FS - Fakulteta za strojništvo
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2026
• Št. strani: 19 str.
• Številčenje: Vol. 18, issue 11, art. 1287
• PID: 20.500.12556/RUL-182866
• UDK: 534.833.53
• ISSN pri članku: 2073-4360
• DOI: 10.3390/polym18111287
• COBISS.SI-ID: 279358723
• Datum objave v RUL: 26.05.2026

Gradivo je del revije

• Naslov: Polymers
• Skrajšan naslov: Polymers
• Založnik: MDPI
• ISSN: 2073-4360
• COBISS.SI-ID: 517951257

Licence

• Licenca: CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by/4.0/deed.sl
• Opis: To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: zvočna absorpcija, koeficient zvočne absorpcije, difuzno zvočno polje, biološki material, lahek panel na osnovi origamija, vzorec Miura-ori