Study on Optimum Tuning of Viscoelastic Dynamic Absorber. Analysis by Fractional Differential Voigt Model.

Dynamic model of viscoelastic material may be described by fractional differential Voigt model. Free vibration and forced vibration of a single-DOP (single degree of freedom) system with viscoelastic material have been described by the equations of motion with fractional differential term. This paper deals with bibration reduction of a single-DOF mechanical system with viscoelastic DA (dynamic absorber). Property of stationary vibration response of a 2-DOF viscous camping system has been fully known, yet a 2-DOF viscoelastic damping system is still unknown. Here, the responses of the 2-DOF system with the viscoelastic DA are analyzed and compared with those with the viscous DA.