Author(s)

A. Pietrzyk & W. Kropp

Abstract

A simulation of the experiments performed in the sound transmission laboratory is described. The air-borne sound transmission between two parallelipipedic rooms separated by a flexible partition is treated as a coupled structural-acoustic problem. It is shown how the sound fields in the rooms, as well as, the vibration of the panel due to acoustic excitation can be described in the Finite Element Method (FEM) and in the Modal Approach (MA). The results of numerical simulations are compared with the experimental data. 1 Introduction During the last years low frequency noise has become increasingly important. In most sound sources affecting dwellings (e.g. traffic noise or amplified music) lower frequencies are largely present. Therefore several national standard

Keywords