Phononic crystal bandgap optimization based on a multistage grid-pixel refinement method

doi:10.1016/j.eml.2023.102036

	Phononic crystal bandgap optimization based on a multistage grid-pixel refinement method
	Sun, Chen ; Wang, Liang ; Jiang H(姜恒); Ding, Qian ; Liu, Zhanli ; Sun, Yongtao ; Wang, Xinghao
刊名	EXTREME MECHANICS LETTERS
	2023-08-01
卷号	62 页码:102036
关键词	Multistage grid-pixel refinement method Phononic crystal bandgap optimization Plane wave expansion method Topology optimization
ISSN号	2352-4316
DOI	10.1016/j.eml.2023.102036
英文摘要	Phononic crystal (PnC) is a kind of periodic distribution structure with elastic constants and densities, which prevents the propagation of waves in the bandgap by the interaction of internal microstructures. A slow convergence process and topological ill-conditioned structure cannot fail to have noticed during the fine grid optimization process of PnC. In this paper, a multistage grid-pixel refinement method (MGPRM) is proposed to quickly obtain the high-quality PnC topology based on the fast plane wave expansion method. Combined with the MGPRM and genetic algorithm, the bandgap of PnC is used to optimize. Results show that the MGPRM combined with the optimization algorithm can provide high-quality original configurations for the tunable parameterized microstructures. Compared with invariant grids of different densities and traditional refinement methods, the MGPRM has higher quality and a faster convergence rate for the process of optimization. Using the MGPRM for multi-objective optimization, the highly nonlinear correspondence between the characteristic bandgap and the topological morphology is obtained. In addition, the dynamic response of the finite PnC microstructure plate composed of the optimized topology and the calculated transmission spectrum are in perfect agreement with the bandgap of PnC. The MGPRM is further applied to the structure design and performance optimization of PnC.
分类号	二类/Q1
WOS研究方向	Engineering ; Materials Science ; Mechanics
语种	英语
WOS记录号	WOS:001025275400001
资助机构	Aeronautical Science Foundation of China [SKLTESKF1901] ; National Natural Science Foundation of China [ASFC-201915048001] ; State Key Laboratory of Mechanical Behavior and System Safety of Traffic Engineering Structures, China [12072222, 12132010, 12021002, 11991032]
其他责任者	Sun, YT (corresponding author), Tianjin Univ, Dept Mech, Tianjin 300350, Peoples R China. ; Sun, YT (corresponding author), Tianjin Univ, Tianjin Key Lab Nonlinear Dynam & Control, Tianjin 300350, Peoples R China. ; Liu, ZL (corresponding author), Tsinghua Univ, Sch Aerosp Engn, Beijing 100084, Peoples R China.
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/92611]
专题	力学研究所_国家微重力实验室
作者单位	1.{Sun, Chen, Wang, Liang, Ding, Qian, Sun, Yongtao} Tianjin Univ, Dept Mech, Tianjin 300350, Peoples R China 2.{Sun, Chen, Wang, Liang, Ding, Qian, Sun, Yongtao} Tianjin Univ, Tianjin Key Lab Nonlinear Dynam & Control, Tianjin 300350, Peoples R China 3.{Jiang, Heng} Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China 4.{Jiang, Heng} Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.{Liu, Zhanli, Wang, Xinghao} Tsinghua Univ, Sch Aerosp Engn, Beijing 100084, Peoples R China
推荐引用方式 GB/T 7714	Sun, Chen,Wang, Liang,Jiang H,et al. Phononic crystal bandgap optimization based on a multistage grid-pixel refinement method[J]. EXTREME MECHANICS LETTERS,2023,62:102036.
APA	Sun, Chen.,Wang, Liang.,姜恒.,Ding, Qian.,Liu, Zhanli.,...&Wang, Xinghao.(2023).Phononic crystal bandgap optimization based on a multistage grid-pixel refinement method.EXTREME MECHANICS LETTERS,62,102036.
MLA	Sun, Chen,et al."Phononic crystal bandgap optimization based on a multistage grid-pixel refinement method".EXTREME MECHANICS LETTERS 62(2023):102036.