Bimorph Vibration Energy Harvester with Flexible 3D Mesh Structure

• Tsukamoto Takuya

  Gunma University

• Umino Yohei

  Gunma University

• Shiomi Sachie

  Gunma University

• Yamada Kou

  Gunma University

• Suzuki Takaaki

  Gunma University

Bibliographic Information

Other Title

• 3 次元メッシュ構造を用いたバイモルフ型振動発電デバイス

Abstract

In this paper, we propose a piezoelectric bimorph vibration energy harvester (VEH) with flexible 3D mesh elastic layer for the purpose of improving output power and lowering resonance frequency. Due to high void ratio of the 3D mesh structure, it is possible to lower the bending stiffness of the cantilever, that is, the deflection of the harvester and the strain in the piezoelectric layer increase. As a result of a vibration test, the resonance frequency is 26% lower and the output power is 1.5 times higher than the conventional solid flat plate VEH. Compared with the flat plate VEH, the proposed mesh VEH has 1.3 times larger tip deflection and the total output power is 20.4 μW that is possible to use as a power supply of low-power consumption sensor nodes for WSNs.

Journal

• The Proceedings of the Symposium on Micro-Nano Science and Technology

  The Proceedings of the Symposium on Micro-Nano Science and Technology 2017.8 (0), PN-38-, 2017

  The Japan Society of Mechanical Engineers

Keywords

• Vibration energy harvester
• 3D photolithography
• low-frequency
• PVDF-TrFE

Details

• CRID: 1390564237987808128
• NII Article ID: 130006744863
• DOI: 10.1299/jsmemnm.2017.8.pn-38
• ISSN: 24329495
• Web Site: https://www.jstage.jst.go.jp/article/jsmemnm/2017.8/0/2017.8_PN-38/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed