Characteristics of vibration energy harvesting using giant magnetostrictive cantilevers with resonant tuning

Kotaro Mori, Tadashi Horibe, Shigekazu Ishikawa, Yasuhide Shindo, Fumio Narita

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

This work deals with the dynamic bending and energy harvesting characteristics of giant magnetostrictive cantilevers with resonant tuning both numerically and experimentally. The giant magnetostrictive cantilever is fabricated using a thin Terfenol-D layer, SUS layer, movable proof mass, etc, and, is designed to automatically adjust its own resonant frequency to match the external vibration frequency in real time. Three-dimensional finite element analysis was conducted, and the resonant frequency, induced voltage and stress in the magnetostrictive cantilevers were predicted. The resonant frequency and induced voltage were also measured, and comparison was made between simulation and experiment. The time-varying behavior and self-tuning ability are discussed in detail.

Original languageEnglish
Article number125032
JournalSmart Materials and Structures
Volume24
Issue number12
DOIs
Publication statusPublished - 2015 Nov 12

Keywords

  • cantilever
  • energy harvesting
  • giant magnetostrictive material
  • self-tuning

ASJC Scopus subject areas

  • Signal Processing
  • Civil and Structural Engineering
  • Atomic and Molecular Physics, and Optics
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Electrical and Electronic Engineering

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