This paper presents a conceptual adaptive tunable vibration absorber (ATVA) with soft
magnetorheological elastomers (MREs) for vibration reduction of vehicle powertrain systems.
The MRE material used in this application has a rubbery silicone polymer matrix and ferrous
fillers in a fraction of 27.6% by volume. For such a soft MRE the elastic modulus significantly
increases due to the MR effect. Thus, the ATVA can work effectively in a wide frequency range
(the increase in frequency is more than ten times) instead of a narrow bandwidth as a
conventional dynamic absorber does. Numerical simulations of a powertrain fitted with the
ATVA are used to validate its effectiveness. The obtained results show that the powertrain
vibration can be significantly suppressed. This novel ATVA will be applicable to the vibration
reduction of powertrains.