Talks and Poster Presentations (with Proceedings-Entry):

S. Gasparoni, M. Ralbovsky, M. Haider, R. Wehr, M. Conter:
"BEM and FEM simulations of the vibro-acoustical response of finite noise barriers";
Talk: 34th conference on Boundary Elements and Mesh Reduction Methods, 2012, Split; 06-25-2012 - 06-28-2012; in: "Boundary Elements and Other Mesh Reduction Methods XXXIV", C.A. BREBBIA, Wessex Institute of Technology, UK and D. POLJAK, University of Split, Croatia, (2012), ISBN: 978-1-84564-622-6; 101 - 107.



English abstract:
Abstract
Noise barriers are one of the primary means in noise abatement for traffic-related noise in
the proximity of roads and railways. The efficiency of noise barriers concerning sound
absorption and sound insulation nowadays is evaluated with different experimental
methods. On the other hand simulations are very helpful for noise barrier manufacturers and
are a cost-efficient tool for predicting and planning new noise barrier solutions.
In the following paper the focus is placed on the vibro-acoustical interactions of the noise
barriers with the surrounding sound field. This means that the sound produces a vibration
in the barrier which then emits additional sound waves. This aspect, often ignored, is
responsible for the transmission of sound through the noise barrier. Boundary and finite
elements methods are best apt to simulate this kind of interaction. Simulations have been
performed and different sound sources (plane wave, point source, line source) have been
analysed.

Keywords:
noise barriers, noise abatement, diffraction, 3D-BEM simulations

Created from the Publication Database of the AIT Austrian Institute of Technology.