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Three-Phase Microstructure Topology Optimization of Two-Dimensional Phononic Bandgap Materials Using Genetic Algorithms
Alternative TitleThree-Phase Microstructure Topology Optimization of Two-Dimensional Phononic Bandgap Materials Using Genetic Algorithms
Xu Weikai1; Ning Jinying1; Zhang Meng1; Wang Wei2; Yang Tianzhi3
2018
Source PublicationACTA MECHANICA SOLIDA SINICA
ISSN0894-9166
Volume31Issue:6Pages:775-784
AbstractThe bandgap, an important characteristic of the periodic structure, is dispersion-related, which can be designed by tailoring the layout of materials within the periodic microstructures. A typical example of a periodic structure is phononic crystals (PnCs), which are traditionally fabricated from two-phase materials. Herein, we investigate the topologies of periodic three-phase PnCs. The microstructures of the three-phase PnCs are optimized using a two-stage genetic algorithm, and three case studies are proposed to obtain the following: (1) the maximum relative bandgap width, (2) the maximum absolute bandgap width, and (3) the maximum bandgap at a specified frequency. More importantly, the three-phase material provides significant advantages compared to the typical two-phase materials, such as a low-frequency bandgap. This research is expected to contribute highly to vibration and noise isolation, elastic wave filters, and acoustic devices.
Other AbstractThe bandgap, an important characteristic of the periodic structure, is dispersionrelated, which can be designed by tailoring the layout of materials within the periodic microstructures. A typical example of a periodic structure is phononic crystals(PnCs), which are traditionally fabricated from two-phase materials. Herein, we investigate the topologies of periodic three-phase PnCs. The microstructures of the three-phase PnCs are optimized using a two-stage genetic algorithm, and three case studies are proposed to obtain the following:(1) the maximum relative bandgap width,(2) the maximum absolute bandgap width, and(3) the maximum bandgap at a specified frequency. More importantly, the three-phase material provides significant advantages compared to the typical two-phase materials, such as a low-frequency bandgap. This research is expected to contribute highly to vibration and noise isolation, elastic wave filters, and acoustic devices.
KeywordDISPERSIVE ELASTODYNAMICS BANDED MATERIALS DESIGN CRYSTALS GAPS 1D Phononic bandgap materials Multiphase microstructures Topology optimization
Indexed ByCSCD
Language英语
Funding Project[National Natural Science Foundation of China] ; [Natural Science Foundation of Liaoning Province] ; [Program for Liaoning Excellent Talents in University (LNET)]
CSCD IDCSCD:6403560
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Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/158039
Collection中国科学院金属研究所
Affiliation1.中国科学院金属研究所
2.沈阳建筑大学
3.天津大学
Recommended Citation
GB/T 7714
Xu Weikai,Ning Jinying,Zhang Meng,et al. Three-Phase Microstructure Topology Optimization of Two-Dimensional Phononic Bandgap Materials Using Genetic Algorithms[J]. ACTA MECHANICA SOLIDA SINICA,2018,31(6):775-784.
APA Xu Weikai,Ning Jinying,Zhang Meng,Wang Wei,&Yang Tianzhi.(2018).Three-Phase Microstructure Topology Optimization of Two-Dimensional Phononic Bandgap Materials Using Genetic Algorithms.ACTA MECHANICA SOLIDA SINICA,31(6),775-784.
MLA Xu Weikai,et al."Three-Phase Microstructure Topology Optimization of Two-Dimensional Phononic Bandgap Materials Using Genetic Algorithms".ACTA MECHANICA SOLIDA SINICA 31.6(2018):775-784.
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