The Nonlinear Tuned Vibration Absorber

R. Viguié and G. Kerschen^a

Space Structures and Systems Laboratory, Dept. of Aerospace and Mechanical Engineering, University of Lièege, Belgium

^a e-mail: g.kerschen@ulg.ac.be

Abstract

The objective of this paper is to introduce a new nonlinear dynamical absorber, the nonlinear tuned vibration absorber, through a rigorous nonlinear extension of the tuning rule for the linear tuned vibration absorber. This nonlinear tuning methodology combined with the increased suppression bandwidth brought by the intentional use of nonlinearity leads to the development of an absorber that is effective in wide ranges of frequencies and motion amplitudes. The results are illustrated using a one-degree-of-freedom primary system.