Design methodology of piezoelectric energy-harvesting skin using topology optimization

• Takezawa, Akihiro

• Kitamura, Mitsuru

• Vatanabe, S. L.

• Silva, E. C. N.

抄録

This paper describes a design methodology for piezoelectric energy harvesters that thinly encapsulate the mechanical devices and exploit resonances from higher-order vibrational modes. The direction of polarization determines the sign of the piezoelectric tensor to avoid cancellations of electric fields from opposite polarizations in the same circuit. The resultant modified equations of state are solved by finite element method (FEM). Combining this method with the solid isotropic material with penalization (SIMP) method for piezoelectric material, we have developed an optimization methodology that optimizes the piezoelectric material layout and polarization direction. Updating the density function of the SIMP method is performed based on sensitivity analysis, the sequential linear programming on the early stage of the optimization, and the phase field method on the latter stage of the optimization to obtain clear optimal shapes without intermediate density. Numerical examples are provided that illustrate the validity and utility of the proposed method.

収録刊行物

• Structural and Multidisciplinary Optimization

  Structural and Multidisciplinary Optimization 49 (2), 281-297, 2014-02

  Springer Berlin Heidelberg

キーワード

• Control and Optimization
• Computer Graphics and Computer-Aided Design
• Computer Science Applications
• Control and Systems Engineering
• Software

詳細情報

• CRID: 1050577740961890944
• NII論文ID: 120005682570
• NII書誌ID: AA11448308
• DOI: 10.1007/s00158-013-0974-x
• ISSN: 16151488
• ISSN: 1615147X
• Web Site: http://ir.lib.hiroshima-u.ac.jp/00038753
• Web Site: http://link.springer.com/content/pdf/10.1007/s00158-013-0974-x.pdf
• Web Site: http://link.springer.com/article/10.1007/s00158-013-0974-x/fulltext.html
• Web Site: http://link.springer.com/content/pdf/10.1007/s00158-013-0974-x
• 本文言語コード: en
• 資料種別: journal article
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