Note: Real time control of a tunable vibration absorber based on magnetorheological elastomer for suppressing tonal vibrations

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An adaptive tunable vibration absober based on magnetorheological elastomer (MRE) is designed as an intelligent device for auto-tuning itself to the time-varying harmonic disturbance force to reduce the unwanted vibration of the primary system in the steady state. The objectives of this note are to develop and implement a continuous control method for a MRE tunable vibration absorber (TVA) and to evaluate its performance in suppressing time-varying tonal vibrations. In the proposed control, the stiffness of MREs is continuously varied based on a nonlinear tuning function that relates the response of the system to the input magnetic field density. Through experiments, it will be shown that the proposed MRE TVA reduces in real time the transmission of a time-varying excited vibration of 48-55 Hz, which shows the potential applicability of the MRE in reducing unwanted vibration to precision devices. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4704455]
Publisher
AMER INST PHYSICS
Issue Date
2012-04
Language
English
Article Type
Article
Keywords

STIFFNESS

Citation

REVIEW OF SCIENTIFIC INSTRUMENTS, v.83, no.4

ISSN
0034-6748
DOI
10.1063/1.4704455
URI
http://hdl.handle.net/10203/103224
Appears in Collection
ME-Journal Papers(저널논문)
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