2012年
A topology optimization method based on the level set method for the design of negative permeability dielectric metamaterials
COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING
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- 巻
- 237
- 号
- 開始ページ
- 192
- 終了ページ
- 211
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1016/j.cma.2012.04.022
- 出版者・発行元
- ELSEVIER SCIENCE SA
This paper presents a level set-based topology optimization method for the design of negative permeability dielectric metamaterials. Metamaterials are artificial materials that display extraordinary physical properties that are unavailable with natural materials. The aim of the formulated optimization problem is to find optimized layouts of a dielectric material that achieve negative permeability. The presence of grayscale areas in the optimized configurations critically affects the performance of metamaterials, positively as well as negatively, but configurations that contain grayscale areas are highly impractical from an engineering and manufacturing point of view. Therefore, a topology optimization method that can obtain clear optimized configurations is desirable. Here, a level set-based topology optimization method incorporating a fictitious interface energy is applied to a negative permeability dielectric metamaterial design problem. The optimization algorithm uses the Finite Element Method (FEM) for solving the equilibrium and adjoint equations, and design problems are formulated for both two- and three-dimensional cases. First, the level set-based topology optimization method is explained, and the optimization problems for the design of metamaterials are then discussed. Several optimum design examples for the design of dielectric metamaterials that demonstrate negative effective permeability at prescribed frequencies are provided to confirm the utility and validity of the presented method. (c) 2012 Elsevier B.V. All rights reserved.
- リンク情報
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- DOI
- https://doi.org/10.1016/j.cma.2012.04.022
- J-GLOBAL
- https://jglobal.jst.go.jp/detail?JGLOBAL_ID=201202271513387289
- CiNii Articles
- http://ci.nii.ac.jp/naid/120005242917
- Web of Science
- https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000307158800015&DestApp=WOS_CPL
- ID情報
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- DOI : 10.1016/j.cma.2012.04.022
- ISSN : 0045-7825
- eISSN : 1879-2138
- J-Global ID : 201202271513387289
- CiNii Articles ID : 120005242917
- Web of Science ID : WOS:000307158800015