Analysis of magneto rheological elastomers for energy harvesting systems

Issue title: Selected papers from the International Symposium on Applied Electromagnetics and Mechanics - ISEM 2019

Guest editors: Jinhao Qiu, Ke Xiong and Hongli Ji

Article type: Research Article

Authors: Diguet, Gildas^{a; b;} | Sebald, Gael^b | Nakano, Masami^c | Lallart, Mickaël^{a; b; d} | Cavaillé, Jean-Yves^b

Affiliations: [a] Institute of Fluid Science, Tohoku University, Sendai, Miyagi, Japan | [b] ELyTMaX UMI 3757, CNRS-Université de Lyon-Tohoku University, Tohoku University, Sendai, Miyagi, Japan | [c] New Industry Creation Hatchery Center, Tohoku University, Sendai, Miyagi, Japan | [d] University of Lyon, INSA-Lyon, LGEF EA682, Lyon, France

Correspondence: [*] Corresponding author: Gildas Diguet, ELyTMaX UMI 3757, CNRS-Université de Lyon-Tohoku University, Tohoku University, Room 503, MaSC Building, 2-1-1 Katahira Sendai, 980-8577, Japan. E-mail: [email protected]

Abstract: Magneto Rheological Elastomers (MREs) are composite materials based on an elastomer filled by magnetic particles. Anisotropic MRE can be easily manufactured by curing the material under homogeneous magnetic field which creates column of particles. The magnetic and elastic properties are actually coupled making these MREs suitable for energy conversion. From these remarkable properties, an energy harvesting device is considered through the application of a DC bias magnetic induction on two MREs as a metal piece is applying an AC shear strain on them. Such strain therefore changes the permeabilities of the elastomers, hence generating an AC magnetic induction which can be converted into AC electrical signal with the help of a coil. The device is simulated with a Finite Element Method software to examine the effect of the MRE parameters, the DC bias magnetic induction and applied shear strain (amplitude and frequency) on the resulting electrical signal.

Keywords: Energy conversion magnetic composite, shear strain

DOI: 10.3233/JAE-209350

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 64, no. 1-4, pp. 439-446, 2020