Topology optimization of multi-material acoustic metamaterials for low-frequency and broadband sound absorption
This paper uses a non-gradient topology optimization method for designing multi-material acoustic metamaterials with low-frequency and broadband sound absorption performance. The method combines a genetic algorithm and a topology optimization method to design appropriate cavities and rigid structure...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-06-01
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| Series: | Materials & Design |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0264127525005568 |
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| _version_ | 1850119003261894656 |
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| author | Feifei Feng Lei Diao Chuan He Meng Tao |
| author_facet | Feifei Feng Lei Diao Chuan He Meng Tao |
| author_sort | Feifei Feng |
| collection | DOAJ |
| description | This paper uses a non-gradient topology optimization method for designing multi-material acoustic metamaterials with low-frequency and broadband sound absorption performance. The method combines a genetic algorithm and a topology optimization method to design appropriate cavities and rigid structures with irregular shapes. The finite element method is used to calculate the sound absorption coefficients, and its accuracy is verified using experimental methods. A cell filtering rule suitable for three-phase materials is proposed to eliminate the checkerboard phenomenon. A data processing method with a penalty mechanism and an adaptive fuzzy fitness granulation method are introduced to improve the convergence effect and the convergence speed of the algorithm. The research results indicate that structures with similar sound absorption performance are generated under different initial structures and iteration loops. The porous material matrices with poor sound absorption performance can also obtain topology structures with good sound absorption performance. Compared with the two-phase material topology structures, the three-phase material topology structure has better sound absorption performance. The final optimized structure designed by a three-stage optimization strategy exhibits excellent low-frequency and broadband sound absorption performance, which remains stable at different incidence angles. The research method in this paper provides some ideas for multi-material topology optimization. |
| format | Article |
| id | doaj-art-5d59f252d31d4e6dbade7aea587a530f |
| institution | OA Journals |
| issn | 0264-1275 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Materials & Design |
| spelling | doaj-art-5d59f252d31d4e6dbade7aea587a530f2025-08-20T02:35:44ZengElsevierMaterials & Design0264-12752025-06-0125411413610.1016/j.matdes.2025.114136Topology optimization of multi-material acoustic metamaterials for low-frequency and broadband sound absorptionFeifei Feng0Lei Diao1Chuan He2Meng Tao3School of Mechanical Engineering, Guizhou University, Guiyang 550025, PR ChinaSchool of Mechanical Engineering, Guizhou University, Guiyang 550025, PR ChinaSchool of Mechanical Engineering, Guizhou University, Guiyang 550025, PR ChinaCorresponding author.; School of Mechanical Engineering, Guizhou University, Guiyang 550025, PR ChinaThis paper uses a non-gradient topology optimization method for designing multi-material acoustic metamaterials with low-frequency and broadband sound absorption performance. The method combines a genetic algorithm and a topology optimization method to design appropriate cavities and rigid structures with irregular shapes. The finite element method is used to calculate the sound absorption coefficients, and its accuracy is verified using experimental methods. A cell filtering rule suitable for three-phase materials is proposed to eliminate the checkerboard phenomenon. A data processing method with a penalty mechanism and an adaptive fuzzy fitness granulation method are introduced to improve the convergence effect and the convergence speed of the algorithm. The research results indicate that structures with similar sound absorption performance are generated under different initial structures and iteration loops. The porous material matrices with poor sound absorption performance can also obtain topology structures with good sound absorption performance. Compared with the two-phase material topology structures, the three-phase material topology structure has better sound absorption performance. The final optimized structure designed by a three-stage optimization strategy exhibits excellent low-frequency and broadband sound absorption performance, which remains stable at different incidence angles. The research method in this paper provides some ideas for multi-material topology optimization.http://www.sciencedirect.com/science/article/pii/S0264127525005568Acoustic metamaterialGenetic algorithmMulti-material topology optimizationAdaptive fuzzy fitness granulationLow-frequency and broadband absorption |
| spellingShingle | Feifei Feng Lei Diao Chuan He Meng Tao Topology optimization of multi-material acoustic metamaterials for low-frequency and broadband sound absorption Materials & Design Acoustic metamaterial Genetic algorithm Multi-material topology optimization Adaptive fuzzy fitness granulation Low-frequency and broadband absorption |
| title | Topology optimization of multi-material acoustic metamaterials for low-frequency and broadband sound absorption |
| title_full | Topology optimization of multi-material acoustic metamaterials for low-frequency and broadband sound absorption |
| title_fullStr | Topology optimization of multi-material acoustic metamaterials for low-frequency and broadband sound absorption |
| title_full_unstemmed | Topology optimization of multi-material acoustic metamaterials for low-frequency and broadband sound absorption |
| title_short | Topology optimization of multi-material acoustic metamaterials for low-frequency and broadband sound absorption |
| title_sort | topology optimization of multi material acoustic metamaterials for low frequency and broadband sound absorption |
| topic | Acoustic metamaterial Genetic algorithm Multi-material topology optimization Adaptive fuzzy fitness granulation Low-frequency and broadband absorption |
| url | http://www.sciencedirect.com/science/article/pii/S0264127525005568 |
| work_keys_str_mv | AT feifeifeng topologyoptimizationofmultimaterialacousticmetamaterialsforlowfrequencyandbroadbandsoundabsorption AT leidiao topologyoptimizationofmultimaterialacousticmetamaterialsforlowfrequencyandbroadbandsoundabsorption AT chuanhe topologyoptimizationofmultimaterialacousticmetamaterialsforlowfrequencyandbroadbandsoundabsorption AT mengtao topologyoptimizationofmultimaterialacousticmetamaterialsforlowfrequencyandbroadbandsoundabsorption |