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检索条件："关键词=metamaterial "
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Bandgap Analysis of Periodic Composite Microplates with Curvature-Based Flexoelectricity:A Finite Element Approach
《Acta Mechanica Solida Sinica》2022年第6期996-1003,共8页Pengyu Lai Zhangzhang He Yu Cong Shuitao Gu Gongye Zhang 
A finite element model is proposed permitting prediction of elastic wave bandgaps of periodic composite microplates incorporating flexoelectric effect.In this model,we applied curvature-based flexoelectricity and Mind...
关键词：Bandgap Elastic wave propagation Metamaterial design Curvature-based flexoelectricity Mindlin plate finite element 
On Klein tunneling of low-frequency elastic waves in hexagonal topological plates
《Applied Mathematics and Mechanics(English Edition)》2024年第7期1139-1154,共16页Yuxin YAO Yuansheng MA Fang HONG Kai ZHANG Tingting WANG Haijun PENG Zichen DENG 
supported by the National Natural Science Foundation of China(No.12172297);the Open Foundation of State Key Laboratory of Structural Analysis for Industrial Equipment of China(No.GZ22106);the Innovation Foundation for Doctor Dissertation of Northwestern Polytechnical University of China(No.CX2023055)。
Incident particles in the Klein tunnel phenomenon in quantum mechanics can pass a very high potential barrier.Introducing the concept of tunneling into the analysis of phononic crystals can broaden the application pro...
关键词：topological metamaterial elastic wave Klein tunneling valley-locked waveguide 
Modeling and analysis of gradient metamaterials for broad fusion bandgaps
《Applied Mathematics and Mechanics(English Edition)》2024年第7期1155-1170,共16页Changqi CAI Chenjie ZHU Fengyi ZHANG Jiaojiao SUN Kai WANG Bo YAN Jiaxi ZHOU 
supported by the National Natural Science Foundation of China(Nos.12122206,52175125,12272129,12304309,and 12302039);the Zhejiang Provincial Natural Science Foundation of China(No.LQ24A020006);the Hong Kong Scholars Program of China(No.XJ2022012);the Natural Science Foundation of Hunan Province of China(No.2024JJ4004)。
A gradient metamaterial with varying-stiffness local resonators is proposed to open the multiple bandgaps and further form a broad fusion bandgap.First,three local resonators with linearly increasing stiffness are per...
关键词：local resonance mechanism elastic metamaterial stiffness gradient bandgap fusion broadband wave attenuation 
A low-frequency and broadband wave-insulating vibration isolator based on plate-shaped metastructures
《Applied Mathematics and Mechanics(English Edition)》2024年第7期1171-1188,共18页Wei WEI Feng GUAN Xin FANG 
supported by the National Natural Science Foundation of China(Nos.52241103 and 52322505);the Natural Science Fund for Distinguished Young Scholars of Hunan Province of China(No.2023JJ10055)。
A metamaterial vibration isolator,termed as wave-insulating isolator,is proposed,which preserves enough load-bearing capability and offers ultra-low and broad bandgaps for greatly enhanced wave insulation.It consists ...
关键词：metamaterial and metastructure vibration isolation bandgap wave insulation PLATE 
Broadband coplane metamaterial filter based on two nested split-ring-resonators
《Frontiers of Optoelectronics》2016年第4期565-570,共6页Benxin WANG Xiang ZHAI Guizhen WANG Weiqing HUANG Lingling WANG 
Split ring resonators （SRRs）-based broadband metamaterial filters have attracted considerable attention due to their great prospect of practical applications. These filters had been usually obtained by stacking mult...
关键词：METAMATERIAL broadband filter split-ring-reso-nators 
A new tunable elastic metamaterial structure for manipulating band gaps/wave propagation被引量：4
《Applied Mathematics and Mechanics(English Edition)》2021年第11期1543-1554,共12页Zhenyu WANG Zhaoyang MA Xingming GUO Dongsheng ZHANG 
the National Natural Science Foundation of China(Nos.11872233,12102245,11727804)。
A one-dimensional mechanical lattice system with local resonators is proposed as an elastic metamaterial model,which shows negative mass and negative modulus under specific frequency ranges.The proposed representative...
关键词：tunable elastic metamaterial negative mass negative modulus 
K波段高增益超材料微带天线的拓扑优化设计被引量：5
《微波学报》2019年第5期1-7,共7页董焱章 周精浩 
国家自然科学基金青年科学基金(11502075,11504102,51605149);汽车零部件技术湖北省协同创新项目(2015XTZX0401,2015XTZX0421);湖北汽车工业学院博士科研启动基金(BK201501)
超材料微带天线的设计通常依赖经验,其中超材料基元的设计多以尺寸优化和形状优化为主。研究了常规超材料对微带天线增益性能的影响,发现其对增益性能的提升效果有限。提出了一种基于遗传算法的高增益超材料微带天线拓扑优化设计方法,...
关键词：超材料 微带天线 拓扑优化 增益 遗传算法 
基于遗传算法的77GHz超材料微带天线拓扑优化
《湖北汽车工业学院学报》2023年第1期65-69,共5页刘启鑫 董焱章 陆海斌 王永刚 
国家自然科学基金青年科学基金(11502075);湖北省自然科学基金面上科学基金(2022CFB457);汽车零部件技术湖北省协同创新项目(2015XTZX0401);湖北汽车工业学院博士科研启动基金(BK201501)。
针对微带天线增益性能偏低的问题,提出了适用于77 GHz的常规矩形微带天线,并以此为基准引入超材料格子型基元,以天线增益为设计目标,有无超材料方格子为设计变量,基于遗传算法排布超材料基元的拓扑微结构。针对超材料基元拓扑构型中存...
关键词：77 GHz 超材料 微带天线 拓扑优化 冗余设计 增益 
A low-frequency pure metal metamaterial absorber with continuously tunable stiffness
《Applied Mathematics and Mechanics(English Edition)》2024年第7期1209-1224,共16页Xingzhong WANG Shiteng RUI Shaokun YANG Weiquan ZHANG Fuyin MA 
supported by the National Natural Science Foundation of China(No.52250287);the Outstanding Youth Science Fund Project of Shaanxi Province of China(No.2024JC-JCQN-49)。
To address the incompatibility between high environmental adaptability and deep subwavelength characteristics in conventional local resonance metamaterials,and overcome the deficiencies in the stability of existing ac...
关键词：elastic metamaterial absorber continuously tunable stiffness low-frequency vibration damping variable stiffness design pure metal structure 
All-dielectric left-handed metamaterial based on dielectric resonator:design,simulation and experiment
《Chinese Physics B》2011年第1期339-345,共7页杨一鸣 王甲富 夏颂 柏鹏 李哲 王军 徐卓 屈绍波 
Project supported in part by the National Natural Science Foundation of China(Grant Nos.50632030,60871027 and 10804130);in part by the National Basic Research Program of China(Grant No.2009CB613306);the Natural Science Foundation of Shaanxi Province,China(Grant No.SJ08F01)
Dipoles with Lorentz-type resonant electromagnetic responses can realise negative effective parameters in their negative resonant region. The electric dipole and magnetic dipole can realise, respectively, negative per...
关键词：all-dielectric left-handed metamaterial dielectric resonator magnetic dipole electric dipole 
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