OPTIMUM SYSTEM OF VISCOELASTIC VIBRATION ABSORBERS BY FRACTIONAL CALCULUS.

Vibration absorbers, also called vibration neutralizers, are mechanical devices to be attached to another mechanical system, or structure, called the primary system, with the purpose of reducing vibration and sound radiation. The simplest form of a vibration neutralizer is that of a single degree of freedom system where the “spring” is made of a viscoelastic material, perhaps with some metal inserts. This paper sets out to describe how to design a best possible system of viscoelastic neutralizers for an available viscoelastic material, known by its four fractional parameters model. A real example is presented and discussed.