Structure-borne sound transmission between thin orthotropic plates: Analytical solutions

Two models are presented for predicting structure-borne sound transmission between thin orthotropic plates connected by a rigid junction. The first is based on a solution for the wave propagation in semi-infinite plates, and the second is based on a modal summation solution for finite-sized plates. Numerical results for the bending wave transmission across an L-junction demonstrate the inherent similarities and differences of both models. Results for a junction of orthotropic plates are compared with results for an equivalent junction of isotropic plates. The use of an orthotropic plate model in the context of an SEA method is discussed. (C) 1995 Academic Press Limited