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Shear Vibration Property of Magnetically-Responsive Gels in Magnetically Open Looped System

[+] Author Affiliations
Hiroshi Nasuno

Taica Corporation, Shizuoka, Japan

Yotsugi Shibuya

Akita University, Akita, Japan

Hiroshi Sodeyama, Katsuaki Sunakoda

Sanwa Tekki Corporation, Utsunomiya, Tochigi, Japan

Paper No. SMASIS2013-3090, pp. V001T01A008; 5 pages
doi:10.1115/SMASIS2013-3090
From:
  • ASME 2013 Conference on Smart Materials, Adaptive Structures and Intelligent Systems
  • Volume 1: Development and Characterization of Multifunctional Materials; Modeling, Simulation and Control of Adaptive Systems; Integrated System Design and Implementation
  • Snowbird, Utah, USA, September 16–18, 2013
  • Conference Sponsors: Aerospace Division
  • ISBN: 978-0-7918-5603-1
  • Copyright © 2013 by ASME

abstract

This paper deals with dynamic shear deformation characteristics of magnetically-responsive (MR) gels under inhomogeneous magnetic fields. Magnetic particles as Fe-Si-Ni type which is generally known as permalloy, were dispersed in silicone gel to prepare the MR composite. An external magnetic field is applied only to one side of the MR gel by using magnetically open-looped circuit, and different excitation frequencies with constant shear strain amplitude is also applied to MR gels with each different thickness. The shear displacement-force relation of MR gel in open-looped circuit were observed, and mechanical properties such as storage and loss moduli were evaluated from experimental data. As a result, it is found that the characteristics change to a large extent depending on the applied magnetic field and the thickness of the MR gel.

Copyright © 2013 by ASME

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