Vibraciones de una Placa Ortótropa de Espesor Variable con Bordes Libres

Abstract

Recent research performed by the authors on the determination of fundamental frequencies of vibrating orthotropic plates with one or two free edges is reviewed.
The situation where the slab thickness varies in a discontinuous Fashion is also studied. The eigenvalues are determined using the Rayleigh-Ritz method and "pseudo Fourier" expansion and good agreement with numerical values obtained by means of the Finite Elements method is shown to exit.