VISCOELASTIC PROPERTIES OF MAGNETORHEOLOGICAL FLUIDS

V. I. Kordonskii , S. A. Demchuk , and
V. A. Kuz'min

UDC 532.135:538.4

The unique method is used to measure the elastic characteristics 
of a composite material representing a three-layer vibrating beam 
consisting of two metal sheets with a layer of a magnetorheological 
fluid (MRF) between them, which can change its elastic properties 
under the action of an external magnetic field in real time. 
The measured characteristics, namely, the dynamic accumulation 
modulus G2 of the damping MRF layer and the loss 
coefficient both of the damping MRF layer and of the beam as a whole 
are within the range of values typical for classical viscoelastic 
bodies, with the results reproduced satisfactorily.

JEPTER74920199915
JEPTER7492015