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Development and evaluation of an MRE-based absorber with two individually controllable natural frequencies

Journal Article


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Abstract


  • Adaptive tuned mass absorbers, which are based on magnetorheological elastomer (MRE) have

    been widely accepted for vibration absorption due to their frequency shift capability. Wider

    frequency bandwidth indicates more effectiveness in reducing vibrations. In order to broaden the

    effective bandwidth of the MRE-based absorber, this study proposes a new design consisting of

    an eccentric mass. This design enables the absorber to have two natural frequencies: the

    rotational natural frequency and the translational one. These two natural frequencies can be

    controlled separately by adjusting the MRE stiffness and the eccentric length. This design not

    only broadens the effective bandwidth of the absorber, but enables the absorber to suppress

    vibrations with multiple dominant frequencies. The characterization experiment verifies the

    existence of the two natural frequencies and draws the conclusion that the translational natural

    frequency is under the influence of the applied current, while the rotational natural frequency is

    controlled by both the applied current and the eccentric length. The vibration reduction

    effectiveness is then evaluated experimentally by mounting the MRE-based absorber on a

    primary system.

Publication Date


  • 2018

Citation


  • Yang, J., Sun, S., Chi, J. Y., Ning, D. H., Du, H., Zhang, S. W., Li, W. H. & Mao, S. X. (2018). Development and evaluation of an MRE-based absorber with two individually controllable natural frequencies. Smart Materials and Structures, 27 (9), 095002-1-095002-9.

Scopus Eid


  • 2-s2.0-85052616014

Ro Full-text Url


  • https://ro.uow.edu.au/context/eispapers1/article/2874/type/native/viewcontent

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers1/1872

Start Page


  • 095002-1

End Page


  • 095002-9

Volume


  • 27

Issue


  • 9

Place Of Publication


  • United Kingdom

Abstract


  • Adaptive tuned mass absorbers, which are based on magnetorheological elastomer (MRE) have

    been widely accepted for vibration absorption due to their frequency shift capability. Wider

    frequency bandwidth indicates more effectiveness in reducing vibrations. In order to broaden the

    effective bandwidth of the MRE-based absorber, this study proposes a new design consisting of

    an eccentric mass. This design enables the absorber to have two natural frequencies: the

    rotational natural frequency and the translational one. These two natural frequencies can be

    controlled separately by adjusting the MRE stiffness and the eccentric length. This design not

    only broadens the effective bandwidth of the absorber, but enables the absorber to suppress

    vibrations with multiple dominant frequencies. The characterization experiment verifies the

    existence of the two natural frequencies and draws the conclusion that the translational natural

    frequency is under the influence of the applied current, while the rotational natural frequency is

    controlled by both the applied current and the eccentric length. The vibration reduction

    effectiveness is then evaluated experimentally by mounting the MRE-based absorber on a

    primary system.

Publication Date


  • 2018

Citation


  • Yang, J., Sun, S., Chi, J. Y., Ning, D. H., Du, H., Zhang, S. W., Li, W. H. & Mao, S. X. (2018). Development and evaluation of an MRE-based absorber with two individually controllable natural frequencies. Smart Materials and Structures, 27 (9), 095002-1-095002-9.

Scopus Eid


  • 2-s2.0-85052616014

Ro Full-text Url


  • https://ro.uow.edu.au/context/eispapers1/article/2874/type/native/viewcontent

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers1/1872

Start Page


  • 095002-1

End Page


  • 095002-9

Volume


  • 27

Issue


  • 9

Place Of Publication


  • United Kingdom