| Three-Phase Microstructure Topology Optimization of Two-Dimensional Phononic Bandgap Materials Using Genetic Algorithms | |
| Alternative Title | Three-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 Publication | ACTA MECHANICA SOLIDA SINICA
 |
| ISSN | 0894-9166 |
| Volume | 31Issue:6Pages:775-784 |
| Abstract | The 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 Abstract | The 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. |
| Keyword | DISPERSIVE ELASTODYNAMICS BANDED MATERIALS DESIGN CRYSTALS GAPS 1D Phononic bandgap materials Multiphase microstructures Topology optimization |
| Indexed By | CSCD |
| 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 ID | CSCD:6403560 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/158039 |
| Collection | 中国科学院金属研究所 |
| Affiliation | 1.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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