Computational modeling of dynamic control mechanisms with viscoelastic materials

Redescar José Virel Rivero¹; Ronaldo Carvalho Battista¹; Michèle Schubert Pfeil¹

¹ Universidade Federal do Rio de Janeiro

doi:10.20906/CPS/CILAMCE2017-0238

Resumo

In this paper numerical modeling of composite structures and damping devices conceived with one or more layers of viscoelastic materials (VEM) is applied towards practical solutions of vibration problems in structural systems subjected to dynamic loadings. Simple examples of composite structural systems are used to explore the potential of practical application of sandwich and multilayered VEM mechanisms to damp out vibrations induced by dynamic actions. The performance of these VEM damping devices are demonstrated by comparing response amplitudes of the uncontrolled and controlled structural systems. The validation of the developed computational tool and the dynamic numerical modeling is done by means of correlation between obtained numerical results and their experimental counterpart for selected case examples.

Palavras-chave: Structural dynamics; Viscoelastic materials; Dynamic control; Damping; Numerical modeling