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 (/) was observed (: storage modulus, : mass), indicating that the observed vibration is basically described by a simple harmonic oscillation.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6415059 | PMC |
| http://dx.doi.org/10.3390/polym10010104 | DOI Listing |
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