The Sound Absorption Characteristics of Bamboo Twigs Based on Surface Combination Patterns

Abstract:

Bamboo twigs are branches of the bamboo plant. This study intends to confirm the potential of bamboo twigs as an alternative sound absorbing material in acoustic applications. The pieces of bamboo twigs are arranged according to their edges: hollow edges (RR) and node edges (BB), creating five upper-bottom surface combination patterns. The acoustical characteristics were examined through absorption coefficient (α) and standard deviation measurements. The result shows the best surfaces combination is the RB-RR specimen. RB-RR specimen is a combination of hollow and node edges on the upper surface and hollow edges on the bottom surface. Although narrower in frequency ranges, the specimen performs approximately equivalent to the well-known Glass wool in terms of maximum absorption coefficients (α). Refers to the measurement results, the abundant bamboo twigs can be qualified as a potential alternative for sound absorption material in the future.

• Periodical: Materials Science Forum (Volume 1091)
• Pages: 135-141
• DOI: https://doi.org/10.4028/p-k28894
• Online since: June 2023
• Authors: Asniawaty Kusno*, Rosady Mulyadi, Baharuddin Hamzah, Nurul Jamala, Taufik Ishak, Aan Kurniawan
• Keywords: Bamboo Twig, Natural Material, Pattern Arrangement, Sound Absorption

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