Research on Optimization of Microperforated Acoustic Structures Based on Genetic Algorithm

Yang Yu; Ruilin Mu

doi:10.26689/jera.v9i2.9905

Yang Yu College of Mechanical Engineering, Tianjin University of Science & Technology, Tianjin 300222, China
Ruilin Mu College of Mechanical Engineering, Tianjin University of Science & Technology, Tianjin 300222, China

DOI: https://doi.org/10.26689/jera.v9i2.9905

Keywords: Microperforated panels, Genetic algorithm, Sound-absorption

Abstract

Microperforated panels (MPP) are widely used in noise control applications due to their excellent sound absorption performance. However, traditional single-layer MPPs suffer from a narrow sound absorption bandwidth, making it difficult to meet the demands for broadband sound absorption. To address this limitation, this study proposes a design approach for double-layer MPPs optimized using a genetic algorithm (GA). By optimizing structural parameters such as perforation diameter, panel thickness, perforation ratio, and cavity depth, the sound absorption performance of the double-layer MPP is significantly enhanced. The results demonstrate that the optimized double-layer MPP achieves an average sound absorption coefficient of 0.71 across the 100–5000 Hz frequency range, with a peak absorption coefficient exceeding 0.8 at 500 Hz, outperforming conventional sound-absorbing products of the same category.

References

Ma D, 1975, Theory and Design of Sound Absorption Structure of Microperforated Plate. Sci. China, 18(1): 40–52.

Ma D, 1988, Design of Microperforated Plate Structure. Acta Acoustica Sinica, 3: 16–22.

Wang Y, Yuan H, Wang Y, et al., 2022, A Study on Ultra-thin and Ultra-broadband Acoustic Performance of Microperforated Plate Coupled with Coiled-up Space Structure. Applied Acoustics, 200: 109048.

Gai X, Cai Z, Xing T, et al., 2020, Experimental Study on Sound Absorbing Property of Spatial Absorber of Non-woven Fabric with Microperforated Plate-like Structure. Applied Acoustics, 160: 107156.

Yang W, Choy Y, Li Y, 2023, Acoustical Performance of a Wavy Microperforated Panel Absorber. Mechanical Systems and Signal Processing, 185: 109766.

Meng D, Liang X, Liang H, et al., 2024, Broadband Sound Absorption Using Acoustic Black Holes with Microperforated Panels. Modern Physics Letters B, 38(26): 2450243.

Zhao X, Yu Y, Wu Y, 2016, Improving Low-frequency Sound Absorption of Microperforated Panel Absorbers by Using Mechanical Impedance Plate Combined with Helmholtz Resonators. Applied Acoustics, 114: 92–98.

Chu J, Liang X, Yang Z, et al., 2023, A Multi-Layer Microperforated Panel Structure Based on Curled Space for Broadband Sound Absorption at Low Frequencies. Archives of Acoustics, 529-538.

Zhang P, Li Z, Zhou Y, et al., 2025, Improved Sound Absorption with 3D-printed Microperforated Sandwich Structures. Journal of Materials Research and Technology, 34: 855–865.

Chen W, Guo Z, Feng H, et al., 2021, Optimization of Sound Absorption and Insulation Performances of a Dual-cavity Resonant Microperforated Plate. Fluid Dynamics and Materials Processing, 18(2): 481–496.

Xie S, Wang D, Feng Z, et al., 2020, Sound Absorption Performance of Microperforated Honeycomb Metasurface Panels with a Combination of Multiple Orifice Diameters. Applied Acoustics, 158: 107046.

Rafique F, Wu J, Liu C, et al., 2022, Low-frequency Sound Absorption of an Inhomogeneous Microperforated Panel with J-shaped Cavities of Different Depths. Acoustics Australia, 50(2): 203–214.

Li Y, Lin Y, Peng Y, 2022, Enhancing Sound Absorption for an Acoustic Metastructure with Extended Tubes at Ultra-low Frequency. Journal of Applied Physics, 132(11): 115104.