The numerical analysis by finite element method offers new and
efficient possibilities for different parameter calculus of acoustics
phenomena. This paper presents some authors’ results regarding numerical
modelling of the acoustic wave propagation, using the Ansys program. The Ansys
program has in its finite element library dedicated elements for plane and
spatial problems and other specific facilities about which more information is
presented in this paper. The acoustic
wave propagation is studied under conditions of the existence of acoustic
absorbing panels. Different materials are taken into account (aluminium, foam,
oak, polystyrene) for considered acoustic absorbing panels. Also, different
dimensions and different cases for fixing the panels were considered. The
acoustic wave propagation was studied in stationary conditions and dynamic
conditions at different values of sound frequencies. A comparative analysis is
performed regarding the influence of different conditions on acoustic wave
propagation. Our studies presented in this paper refer to acoustic propagation
in an open space, like in airports or around acoustic sources placed in the
open space. The aim of this paper is to offer our experience in this field for
a numerical analysis of the ways for sound level reduction. Also, the
facilities of the Ansys program for the solving of such problems are presented
in a practical manner of use.
Author(s) Details
Vasile Nastasescu
“Ferdinand I Military” Technical Academy, Bucharest, Romania.
Ghita Barsan
“Nicolae Balcescu” Land Forces Academy, Sibiu, Romania.
Oana-Alexandra Mocian
“Ferdinand I Military” Technical Academy, Bucharest, Romania.
Please see the book here:- https://doi.org/10.9734/bpi/strufp/v10/1245
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