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Wednesday, July 10 • 15:50 - 16:10
DYNAMIC CHARACTERIZAITON OF MAGNETORHEOLOGICAL ELASETOMERS IN COMPRESSION MODE

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Characterization of magnetorheological elastomers (MREs) in compression mode is a funda-mental step toward designing and modeling of MRE-based vibration control devices. The pre-sent study investigates dynamic properties of MREs under different loading conditions includ-ing the strain amplitude and magnetic field intensity. A reasonably compact U-I shape elec-tromagnet assembly was designed employing multi-parameter optimization method to achieve the target magnetic flux with minimal overall size and weight. A series of tests were carried out at various strain amplitudes (5 and 20%) and magnetic field intensities (0-750 mT). The measured data were then analyzed to establish effects of strain amplitude and magnetic field intensity on dynamic properties of MREs working in compression mode. The results demon-strated that the viscoelastic properties of the MRE strongly depends on the strain amplitude and applied magnetic field.

Moderators
BG

Bruno Gazengel

Professor, Laboratoire d'Acoustique de l'Université du Mans
MM

Manuel Melon

Professor, LAUM / LE MANS Université

Authors

Wednesday July 10, 2019 15:50 - 16:10 EDT
Westmount 6
  T02 Act. noise & vib. cntrl., SS01 Actuators & sensors …