Article
Optimization of the Acoustic Properties of Multi-layered Fibrous Sound Absorber (en)
* Presenting author
Abstract:
Fibrous materials, often modeled as porous materials, enhance acoustic conditions within the construction and automotive sectors. Extensive research has explored the acoustic characteristics of these materials, encompassing both natural and synthetic fibers. Various numerical and semi-phenomenological models employed in the past help to anticipate their acoustic attributes accurately. Despite the existence of such precise models, the majority of research on fibrous material acoustics remains experimental. Furthermore, researchers spend minimal attention on dependable and uncomplicated strategies for optimizing these attributes and guiding the material preparation process. This work seeks to establish a robust optimization framework for single and multi-layer fibrous materials, uniting numerical optimization techniques with numerical and semi-phenomenological acoustic models. The ultimate objective of this optimization strategy is to furnish tailored parameters for creating fibrous materials with exceptional sound-absorbing qualities. The effectiveness of the optimization approach will be verified and refined through comprehensive measurements of the manufactured fibrous materials.