Mechanical vibration bandgaps in surface-based lattices

被引：84

作者：

Elmadih, Waiel ^{[1
]}

Syam, Wahyudin P. ^{[1
]}

Maskery, Ian ^{[2
]}

Chronopoulos, Dimitrios ^{[3
,4
]}

Leach, Richard ^{[1
]}

机构：

[1] Univ Nottingham, Fac Engn, Mfg Metrol Team, Nottingham, England

[2] Univ Nottingham, Fac Engn, Ctr Addit Mfg, Nottingham, England

[3] Univ Nottingham, Inst Aerosp Technol, Nottingham, England

[4] Univ Nottingham, Composites Grp, Nottingham, England

来源：

ADDITIVE MANUFACTURING | 2019年 / 25卷

基金：

英国工程与自然科学研究理事会;

关键词：

Lattice structures; Phononic materials; Mechanical bandgaps; Design for additive manufacturing; STIFFNESS;

D O I：

10.1016/j.addma.2018.11.011

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this paper, the phonon dispersion curves of several surface-based lattices are examined, and their energy transmission spectra, along with the corresponding bandgaps are identified. We demonstrate that these bandgaps may be controlled, or tuned, through the choice of cell type, cell size and volume fraction. Our results include two findings of high relevance to the designers of lattice structures: (i) network and matrix phase gyroid lattice structures develop bandgaps below 15 kHz while network diamond and matrix diamond lattices do not, and (ii) the bandwidth of a bandgap in the network phase gyroid lattice can be tuned by adjusting its volume fraction and cell size.

引用

页码：421 / 429

页数：9

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