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