Three-Phase Microstructure Topology Optimization of Two-Dimensional Phononic Bandgap Materials Using Genetic Algorithms

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	Three-Phase Microstructure Topology Optimization of Two-Dimensional Phononic Bandgap Materials Using Genetic Algorithms
其他题名	Three-Phase Microstructure Topology Optimization of Two-Dimensional Phononic Bandgap Materials Using Genetic Algorithms
	Xu Weikai 1; Ning Jinying 1; Zhang Meng 1; Wang Wei 2; Yang Tianzhi 3
	2018
发表期刊	ACTA MECHANICA SOLIDA SINICA
ISSN	0894-9166
卷号	31 期号:6 页码:775-784
摘要	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.
其他摘要	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.
关键词	DISPERSIVE ELASTODYNAMICS BANDED MATERIALS DESIGN CRYSTALS GAPS 1D Phononic bandgap materials Multiphase microstructures Topology optimization
收录类别	CSCD
语种	英语
资助项目	[National Natural Science Foundation of China] ; [Natural Science Foundation of Liaoning Province] ; [Program for Liaoning Excellent Talents in University (LNET)]
CSCD记录号	CSCD:6403560
引用统计	被引频次：3[CSCD] [CSCD记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/158039
专题	中国科学院金属研究所
作者单位	1.中国科学院金属研究所 2.沈阳建筑大学 3.天津大学
推荐引用方式 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.