Investigation and optimal design of band gap tunability in fractal phononic crystals
This study investigates the properties of band gaps of circular core filling fractal phononic crystals (CCFFPCs), specifically focusing on the impact of different filling positions on the frequency of band gaps. The research demonstrates that core filling at the central positions significantly influ...
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| Format: | Article |
| Language: | English |
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EDP Sciences
2025-01-01
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| Series: | Acta Acustica |
| Subjects: | |
| Online Access: | https://acta-acustica.edpsciences.org/articles/aacus/full_html/2025/01/aacus240129/aacus240129.html |
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| _version_ | 1850065798518800384 |
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| author | Yang Shuai Yin Jia-Hao Zhu Xiao-Jing Wang Kai Zhang Shi-ke Cao Lu Guo Peng-Yu Liu Yong |
| author_facet | Yang Shuai Yin Jia-Hao Zhu Xiao-Jing Wang Kai Zhang Shi-ke Cao Lu Guo Peng-Yu Liu Yong |
| author_sort | Yang Shuai |
| collection | DOAJ |
| description | This study investigates the properties of band gaps of circular core filling fractal phononic crystals (CCFFPCs), specifically focusing on the impact of different filling positions on the frequency of band gaps. The research demonstrates that core filling at the central positions significantly influences the formation and widening of low-frequency band gaps, while filling at corner edges predominantly affects mid-frequency band gaps, and filling at edge centers effectively opens and broadens high-frequency band gaps. These results reveal the relationship between filling positions and band gap tuning, providing a theoretical foundation for precise band gap control across a full frequency range. Moreover, this study is the first to systematically clarify the impact of core filling positions on band gap frequencies, expanding the design strategies for band gaps in fractal phononic crystals. Furthermore, this study employs genetic algorithm optimization to achieve the maximum band gap width at different frequencies, enhancing the practical value of fractal phononic crystals in engineering applications. This research deepens theoretical understanding and provides valuable guidance for optimizing their use in broadband acoustic control and energy harvesting applications. |
| format | Article |
| id | doaj-art-a3a7795ffa274dbe96a9d0e3adbffb24 |
| institution | DOAJ |
| issn | 2681-4617 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | Acta Acustica |
| spelling | doaj-art-a3a7795ffa274dbe96a9d0e3adbffb242025-08-20T02:48:54ZengEDP SciencesActa Acustica2681-46172025-01-0191810.1051/aacus/2025007aacus240129Investigation and optimal design of band gap tunability in fractal phononic crystalsYang Shuai0https://orcid.org/0000-0002-0059-2769Yin Jia-Hao1https://orcid.org/0009-0001-5040-288XZhu Xiao-Jing2Wang Kai3https://orcid.org/0000-0003-4168-2901Zhang Shi-ke4https://orcid.org/0000-0002-2908-3669Cao Lu5Guo Peng-Yu6Liu Yong7School of Civil Engineering and Architecture, Anyang Normal UniversitySchool of Civil and Environmental Engineering, The University of New South WalesSchool of Civil Engineering and Architecture, Anyang Normal UniversityNational Innovation Institute of Defense Technology, Academy of Military ScienceSchool of Civil Engineering and Architecture, Anyang Normal UniversityNational Innovation Institute of Defense Technology, Academy of Military ScienceNational Innovation Institute of Defense Technology, Academy of Military ScienceNational Innovation Institute of Defense Technology, Academy of Military ScienceThis study investigates the properties of band gaps of circular core filling fractal phononic crystals (CCFFPCs), specifically focusing on the impact of different filling positions on the frequency of band gaps. The research demonstrates that core filling at the central positions significantly influences the formation and widening of low-frequency band gaps, while filling at corner edges predominantly affects mid-frequency band gaps, and filling at edge centers effectively opens and broadens high-frequency band gaps. These results reveal the relationship between filling positions and band gap tuning, providing a theoretical foundation for precise band gap control across a full frequency range. Moreover, this study is the first to systematically clarify the impact of core filling positions on band gap frequencies, expanding the design strategies for band gaps in fractal phononic crystals. Furthermore, this study employs genetic algorithm optimization to achieve the maximum band gap width at different frequencies, enhancing the practical value of fractal phononic crystals in engineering applications. This research deepens theoretical understanding and provides valuable guidance for optimizing their use in broadband acoustic control and energy harvesting applications.https://acta-acustica.edpsciences.org/articles/aacus/full_html/2025/01/aacus240129/aacus240129.htmlfractal phononic crystalband gap tunabilitygenetic algorithmoptimal design |
| spellingShingle | Yang Shuai Yin Jia-Hao Zhu Xiao-Jing Wang Kai Zhang Shi-ke Cao Lu Guo Peng-Yu Liu Yong Investigation and optimal design of band gap tunability in fractal phononic crystals Acta Acustica fractal phononic crystal band gap tunability genetic algorithm optimal design |
| title | Investigation and optimal design of band gap tunability in fractal phononic crystals |
| title_full | Investigation and optimal design of band gap tunability in fractal phononic crystals |
| title_fullStr | Investigation and optimal design of band gap tunability in fractal phononic crystals |
| title_full_unstemmed | Investigation and optimal design of band gap tunability in fractal phononic crystals |
| title_short | Investigation and optimal design of band gap tunability in fractal phononic crystals |
| title_sort | investigation and optimal design of band gap tunability in fractal phononic crystals |
| topic | fractal phononic crystal band gap tunability genetic algorithm optimal design |
| url | https://acta-acustica.edpsciences.org/articles/aacus/full_html/2025/01/aacus240129/aacus240129.html |
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