多孔径蜂窝微穿孔结构的吸声性能优化与分析
Optimization Design and Analysis of Sound Absorption Performance of Multi Aperture Honeycomb Micro Perforated Structure

DOI: 10.12677/OJAV.2021.91003, PP. 23-29

Keywords: 蜂窝–微穿孔板，粒子群算法，吸声
Honeycomb Micro Perforation, Particle Swarm Optimization, Sound Absorption

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Abstract:

本文为了提高四孔径蜂窝–微穿孔板结构的吸声性能，利用马大猷经典微穿孔板声电类比理论，推导出四孔径蜂窝–微穿孔板结构理论模型。采用粒子群算法，以目标频带内吸声曲线最为饱满作为优化目标，对四孔径蜂窝–微穿孔板结构四个区域的穿孔率、孔径、板厚和腔深进行优化。结果表明，与常规参数的蜂窝–微穿孔结构相比，优化后结构的吸声峰值和带宽都得到了提升。
In order to improve the sound absorption performance of four aperture honeycomb microperforated plate structure, a theoretical model of four aperture honeycomb microperforated plate structure is derived by using Ma Dayou’s classical acoustic electric analogy theory of microperforated plate. The particle swarm optimization (PSO) algorithm is used to optimize the perforation rate, aperture, thickness and cavity depth of the four regions of the four aperture honeycomb micro perforated plate structure with the most full absorption curve in the target frequency band as the optimization objective. The results show that compared with the conventional parameters of the honeycomb micro perforated structure, the optimized structure has improved the sound absorption peak and bandwidth.

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