Multi-mechanism non-linear vibration harvester combining inductive and magnetostrictive mechanisms

Anthony Marin, Yonas Tadesse, Shashank Priya

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

In this study, we focus on developing a multi-mechanism energy harvester (MMEH) which combines magnetostrictive and inductive mechanisms with overall shape and size similar to AA battery. The multi-mechanism harvester was theoretically modeled, fabricated and experimentally characterized. The theoretical model combining analytical and FEM modeling techniques provides the system dynamics and output power for specific generator and magnetostrictive geometry at various source conditions. The prototype consisted of a cylindrical tube containing a magnetic levitation cavity where a center magnet oscillated through a copper coil. Magnetostrictive rods were mounted on the bottom and top cap of the cylindrical tube. In response to external vibrations, electrical energy was harvested from the relative motion between magnet and coil through Faraday's effect and from the magnetostrictive material through the Villari effect. The experimental results were compared to theoretical predictions for both mechanisms which showed reasonable agreement. The difference between model predictions and experiments are discussed in detail. The inductive mechanism generated 5.3 mW, 2.57 mW, 0.27 mW at 0.9 G, 0.7 G and 0.4 G respectively.

Original languageEnglish (US)
Pages (from-to)27-52
Number of pages26
JournalIntegrated Ferroelectrics
Volume148
Issue number1
DOIs
StatePublished - Dec 1 2013

Fingerprint

Harvesters
Magnets
Magnetic levitation
vibration
Faraday effect
Copper
Analytical models
Dynamical systems
Finite element method
magnets
coils
Geometry
tubes
levitation
electric power
predictions
caps
Experiments
electric batteries
rods

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Control and Systems Engineering
  • Ceramics and Composites
  • Condensed Matter Physics
  • Electrical and Electronic Engineering
  • Materials Chemistry

Cite this

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abstract = "In this study, we focus on developing a multi-mechanism energy harvester (MMEH) which combines magnetostrictive and inductive mechanisms with overall shape and size similar to AA battery. The multi-mechanism harvester was theoretically modeled, fabricated and experimentally characterized. The theoretical model combining analytical and FEM modeling techniques provides the system dynamics and output power for specific generator and magnetostrictive geometry at various source conditions. The prototype consisted of a cylindrical tube containing a magnetic levitation cavity where a center magnet oscillated through a copper coil. Magnetostrictive rods were mounted on the bottom and top cap of the cylindrical tube. In response to external vibrations, electrical energy was harvested from the relative motion between magnet and coil through Faraday's effect and from the magnetostrictive material through the Villari effect. The experimental results were compared to theoretical predictions for both mechanisms which showed reasonable agreement. The difference between model predictions and experiments are discussed in detail. The inductive mechanism generated 5.3 mW, 2.57 mW, 0.27 mW at 0.9 G, 0.7 G and 0.4 G respectively.",
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Multi-mechanism non-linear vibration harvester combining inductive and magnetostrictive mechanisms. / Marin, Anthony; Tadesse, Yonas; Priya, Shashank.

In: Integrated Ferroelectrics, Vol. 148, No. 1, 01.12.2013, p. 27-52.

Research output: Contribution to journalArticle

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