Topological design and magnetic tunability of a novel cross-like holes phononic crystal with low frequency

被引：10
|
作者：
Zhang, Gang [1 ,2 ]
Gao, Yuanwen [1 ,2 ]
机构：
[1] Lanzhou Univ, Key Lab Mech Environm & Disaster Western China, Minist Educ China, Lanzhou, Gansu, Peoples R China
[2] Lanzhou Univ, Coll Civil Engn & Mech, Dept Mech & Engn Sci, Lanzhou, Gansu, Peoples R China
来源：
MECHANICS OF ADVANCED MATERIALS AND STRUCTURES | 2022年 / 29卷 / 27期
基金：
中国国家自然科学基金;
关键词：
Phononic crystals; topological design; band gap; genetic algorithm; cross-like holes; magnetic field; BAND-GAPS; OPTIMIZATION; CLOAK;
D O I：
10.1080/15376494.2021.1972373
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this paper, a novel type of cross-like holes phononic crystal with excellent band gap characteristics, machinability and stability is optimized and designed based on genetic algorithm. The improved genetic algorithm is used to enlarge the band gap in the low frequency range, and the transmission spectrum of the structure is calculated by finite element method. In addition, the magnetorheological elastomer was introduced to optimize the spatial magnetic field distribution and study the influence of magnetic field on the band gap. This work provides useful guidance for the topological design of other types of intelligent phononic crystals.
引用
收藏
页码：6144 / 6153
页数：10
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