We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
BEM SIMULATIONS OF DIFFRACTION-OPTIMIZED GEOMETRICAL NOISE BARRIERS, WITH A FOCUS ON TUNABILITY.
- Authors
Gasparoni, Sara; Reiter, Paul; Wehr, Reinhard; Conter, Marco; Haider, Manfred
- Abstract
Traffic noise is an increasingly important problem with the increase in traffic volume. To counteract this, noise barriers are the most used traffic-noise-abatement tool. In an attempt to reduce the amount of material, and thus the costs for the construction of noise barriers, it is of interest to reduce the height of the barriers. One possibility to reduce the height is to use absorbing materials. This is a good solution but the porosity of these materials makes them very sensitive to clogging by dirt and changes their absorbance and their performance with time. In this paper, non-standard geometrical forms of noise barriers with added devices are investigated. The boundary element method is used to investigate the insertion loss produced by these noise barriers. This method is also used to propose tunable barriers that could adapt to the changing noise spectrum.
- Subjects
NOISE barriers; NOISE control equipment; POROSITY; BOUNDARY element methods; NUMERICAL analysis
- Publication
Acoustics Australia, 2013, Vol 41, Issue 3, p202
- ISSN
0814-6039
- Publication type
Article