Multi-objective optimization of two-dimensional porous phononic crystals

被引：106
作者：
Dong, Hao-Wen [1 ]
Su, Xiao-Xing [2 ]
Wang, Yue-Sheng [1 ]
机构：
[1] Beijing Jiaotong Univ, Inst Engn Mech, Beijing 100044, Peoples R China
[2] Beijing Jiaotong Univ, Sch Elect & Informat Engn, Beijing 100044, Peoples R China
来源：
JOURNAL OF PHYSICS D-APPLIED PHYSICS | 2014年 / 47卷 / 15期
基金：
中国国家自然科学基金;
关键词：
phononic crystals; multi-objective optimization; bandgap; mass; record values; MAXIMIZING BAND-GAPS; TOPOLOGY OPTIMIZATION; WAVE-GUIDE; GENETIC ALGORITHM; ACOUSTIC-WAVES; EVOLUTIONARY OPTIMIZATION; DESIGN; ATTENUATION;
D O I：
10.1088/0022-3727/47/15/155301
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
In this paper, we show that it is possible to design two-dimensional (2D) porous phononic crystals (PnCs) with a simultaneously maximal bandgap width (BGW) and the minimal mass through multi-objective optimization (MOOP) by using the non-dominated sorting-based genetic algorithm II. Compared with the single-objective optimization, the optimized structures from the MOOP can achieve a balance between the relative BGW and mass of PnCs. For the combined out-of-plane and in-plane wave modes, we present an optimized design with the relatively big BGW, which breaks the record value of 2D porous PnCs.
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页数：11
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