Magnetically Tunable Vibration Transmissibility for Polyurethane Magnetic Elastomers
1
Graduate School of Science and Technology, Niigata University, Niigata 950-2181, Japan
2
ALCA, Japan Science and Technology Agency, Tokyo 102-0076, Japan
3
Faculty of Engineering, Niigata University, Niigata 950-2181, Japan
4
Faculty of Science and Technology, Oita University, Oita 870-1192, Japan
*
Author to whom correspondence should be addressed.
Polymers 2018, 10(1), 104; https://doi.org/10.3390/polym10010104
Received: 22 December 2017
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Revised: 19 January 2018
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Accepted: 19 January 2018
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Published: 22 January 2018
(This article belongs to the Special Issue Elastomers)
The effect of a weak magnetic field on vibration transmissibility was investigated for magnetic elastomers with various volume fractions of magnetic particles. Polyurethane elastomers without magnetic particles exhibited a natural frequency at 53 Hz and were insensitive to a magnetic field of 60 mT. The natural frequency for magnetic elastomers with a volume fraction of 0.23 was 115 Hz at 0 mT, and increased to 134 Hz at 60 mT. The vibration transmissibility was independent of the magnetic field. A linear relation between the natural frequency and (G/m)1/2 was observed (G: storage modulus, m: mass), indicating that the observed vibration is basically described by a simple harmonic oscillation.
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Keywords:
magnetic elastomer; magnetic gel; stimuli-responsive material; soft material; magnetorheological effect
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MDPI and ACS Style
Endo, H.; Kato, S.; Watanebe, M.; Kikuchi, T.; Kawai, M.; Mitsumata, T. Magnetically Tunable Vibration Transmissibility for Polyurethane Magnetic Elastomers. Polymers 2018, 10, 104. https://doi.org/10.3390/polym10010104
AMA Style
Endo H, Kato S, Watanebe M, Kikuchi T, Kawai M, Mitsumata T. Magnetically Tunable Vibration Transmissibility for Polyurethane Magnetic Elastomers. Polymers. 2018; 10(1):104. https://doi.org/10.3390/polym10010104
Chicago/Turabian StyleEndo, Hiroyuki, Shunsuke Kato, Mayuko Watanebe, Takehito Kikuchi, Mika Kawai, and Tetsu Mitsumata. 2018. "Magnetically Tunable Vibration Transmissibility for Polyurethane Magnetic Elastomers" Polymers 10, no. 1: 104. https://doi.org/10.3390/polym10010104
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