A recent patent filed by the authors has highlighted the potential adv
antages of employing ER fluids in tension and compression rather than,
as more often reported, in shear. This increased capability is utilis
ed in the present paper in the study of a prototype automotive engine
mount, a device which can benefit from the controllable properties of
ER fluids. The paper presents some recently acquired experimental resu
lts of the effect of a change in the voltage applied across the ER flu
id on the magnitude of the transmitted vibration and also outlines a t
ime-dependent theoretical analysis assuming a non-Newtonian characteri
stic for the fluid in squeeze-flow.