Design of a real-time adaptively tuned dynamic vibration absorber with a variable stiffness property using magnetorheological elastomer

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Abstract

An elastomer composite with controllable stiffness, known as a magnetorheological elastomer (MRE), is used in a dynamic vibration absorber whose natural frequency is tuned adaptively to the disturbance frequency through the application of an external magnetic field. The field-dependent property test of the fabricated MRE sample shows that the stiffness changes by more than six times compared to the baseline property value at a 40% iron powder volume concentration. The MRE is then used to fabricate a frequency-tunable dynamic absorber for mitigating transient vibrations of a one-degree-of-freedom system. Investigations show that the proposed absorber outperforms a conventional passive-type absorber throughout the tunable frequency range. © 2015 Toshihiko Komatsuzaki and Yoshio Iwata.

Journal

  • Shock and Vibration

    Shock and Vibration (2015), 676508, 2015-01-01

    Hindawi Publishing Corporation

Codes

  • NII Article ID (NAID)
    120005661922
  • NII NACSIS-CAT ID (NCID)
    AA11028594
  • Text Lang
    ENG
  • Article Type
    journal article
  • ISSN
    1070-9622
  • Data Source
    IR 
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