Topology optimization of high performance electromagnetic devices that use the change permittivity change of elastomers due to the structural deformations

2013 Fiscal Year Final Research Report

• Project/Area Number: 23656069
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Engineering fundamentals
• Research Institution: Kyoto University
• Principal Investigator: NISHIWAKI Shinji 京都大学, 工学(系)研究科(研究院), 教授 (10346041)
• Co-Investigator(Kenkyū-buntansha): IZUI Kazuhiro 京都大学, 大学院・工学研究科, 准教授 (90314228) ; YAMADA Takayuki 京都大学, 大学院・工学研究科, 助教 (30598222)
• Project Period (FY): 2011 – 2013
• Keywords: 構造最適化 / トポロジー最適化 / 電磁波デバイス / エラストマー / 有限要素法 / 粒子法

Research Abstract

This research constructed a new topology optimization that considers the change of electromagnetic properties due to the mechanical deformations for the structural designs of the high performance electromagnetic devices that use the change of permittivity of higher dielectric elastomers. That is, we, first, constructed the level set-based topology optimization method considering the geometrically nonlinearity based on the particle method that can evaluate the structural deformations of the elastomers. Next, the numerical method for analyzing the electromagnetic properties of the elastomers was developed using the finite element method. Finally, we tried to construct the topology optimization for the designs of electromagnetic devices that use the change of permittivity due to the structural deformations by combining the above two methods to take into account the coupled effects between the structural problems and electromagnetic wave propagation problems.

Research Products

• [Journal Article] 粒子法を用いたレベルセット法による形状表現に基づくトポロジー最適化 (2011)
  • Author(s): 真鍋匡利, 山田崇恭, 泉井一浩, 西脇眞二
  • Journal Title: 日本機械学会論文集(A編) Volume: 77巻784号 Pages: 2054-2066
  • DOI: 10.1299/kikaia.77.2054
  • Peer Reviewed
• [Presentation] 最小二乗近似に基づく粒子法を用いたトポロジー最適化に関する考察 (2013)
  • Author(s): 北川晃祥, 山田崇恭, 泉井一浩, 西脇眞二, 柴田和也
  • Organizer: 第26回計算力学講演会, 日本機械学会
  • Place of Presentation: 佐賀市, 日本
  • Year and Date: 20131102-04
• [Presentation] レベルセット法に基づくレンズ設計問題のトポロジー最適化 (2013)
  • Author(s): 赤土侑也, 山田崇恭, 泉井一浩, 西脇眞二, 大門真, 野村壮史, 乙守正樹
  • Organizer: 第26回計算力学講演会, 日本機械学会
  • Place of Presentation: 佐賀市, 日本
  • Year and Date: 20131102-04
• [Presentation] Design of a far-infrared lens based on topology optimization (2013)
  • Author(s): Akatsuchi Y., Yamada, T., Izui, K., Nishiwaki, S., Ohkado, M., and Nomura, T
  • Organizer: Proceedings of the 10th World Congress on Structural and Multidisciplinary Optimization (WCSMO10)
  • Place of Presentation: Orlando, Florida, USA
  • Year and Date: 20130519-24
• [Presentation] Structural Optimization of Geometrically Nonlinear Problems Using Level Set-Based Topology Optimization and a Particle Method (2011)
  • Author(s): Nishiwaki, S., Manabe, M, Yamada, T., and Izui, K
  • Organizer: 11th US National Congress on Computational Mechanics
  • Place of Presentation: Minneapolis, Minnesota, USA
  • Year and Date: 20110725-28
• [Presentation] Level Set-Based Topology Optimization of Compliant Mechanisms Considering Large Displacement Effects (2011)
  • Author(s): Kotani, T., Yamada, T., Manabe, M., Izui, K., and Nishiwaki, S
  • Organizer: 11th US National Congress on Computational Mechanics
  • Place of Presentation: Minneapolis, Minnesota, USA
  • Year and Date: 20110725-28
• [Presentation] Geometrically Nonlinear Structural Design Using Level Set-based Topology Optimization and Particle Method (2011)
  • Author(s): Manabe, M., Yamada, T., Izui, K., and Nishiwaki, S
  • Organizer: 9th World Congress on Structural and Multidisciplinary Optimization
  • Place of Presentation: Shizuoka, Japan
  • Year and Date: 20110613-17
• [Presentation] Level Set-based Topology Optimization of Large Displacement Compliant Mechanisms (2011)
  • Author(s): Kotani, T., Yamada, T., Manabe, M., Izui, K., and Nishiwaki, S
  • Organizer: 9th World Congress on Structural and Multidisciplinary Optimization
  • Place of Presentation: Shizuoka, Japan
  • Year and Date: 20110613-17
• [Book] トポロジー最適化, 計算力学レクチャーコース (2013)
  • Author(s): 西脇眞二, 泉井一浩, 菊池昇
  • Total Pages: 181
  • Publisher: 丸善出版