Buch: Numerical Modeling and Material Development of a Concrete-Based Acoustic Absorber
Numerical Modeling and Material Development of a Concrete-Based Acoustic Absorber
Forschungsergebnisse aus der Bauphysik, Band 36
Seyed Mohammad Hassan Zolanvari
Hrsg.: Klaus Sedlbauer, Philip Leistner, Schew-Ram Mehra; Fraunhofer IBP, Stuttgart
2019, 165 S., num. illus. and tab., Softcover
Sprache: Englisch
Stuttgart, Univ., Diss., 2018
Fraunhofer Verlag
ISBN 978-3-8396-1487-7

Acoustic absorbers are implemented in buildings to increase the health and comfort level of the residents. However, popular absorbers have some disadvantages. For instance, some of them have complicated production procedure and are not environment-friendly. Various researches propose that granular materials can overcome these drawbacks.
This thesis aims to improve the performance and workability of a prototype, which is a granular acoustic absorber. Therefore, four main objectives are considered for this research work:
1- Optimizing the material components for the highest acoustic absorption
2- Improving the production procedure from a lab-scale to an industrial-scale
3- Numerically correlating the material geometry with acoustic absorption
4- Computing the model parameters from the measured acoustic absorption
Consequently, the final material is very cost effective, has a proper acoustic absorption and mechanical properties, and a straightforward production procedure. The numerical approach works very efficiently for inverse parametric identification. However, the results of geometrical computations for this material are inaccurate.

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