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The aim is to improve the acoustic transmission performance of sandwich panels using a novel hierarchical honeycomb structure.

July 30, 2026MaterialsOpen Access

Numerical Study on the Acoustic Transmission Performance of New Hierarchical Honeycomb Sandwich Panel

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Numerical study demonstrates improved sound insulation in innovative honeycomb panels, indicating architectural benefits.

The aim is to improve the acoustic transmission performance of sandwich panels using a novel hierarchical honeycomb structure.
Utilized structural acoustic finite element analysis methods for simulations.
Assessed natural frequency, sound transmission loss, and sound pressure distribution.
Varying vertex sizes and configurations to optimize acoustic performance.
Sound transmission loss improved by 17.2% with hierarchical parameter λ = 0.4 compared to λ = 0.2.
Hierarchical honeycombs exhibited STLo levels between 43.08–44.24 dB.
Acoustic transmission loss was enhanced with smaller honeycomb units within the resonance frequency range.

Zhou et al. (2026) studied this question.

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