Design and application of metamaterials for the reduction of noise and vibration for in- and outdoor environments
Metamaterials are artificial, heterogeneous, engineered structures with unusual properties like negative mass or negative stiffness. Realizations of such structures contain, e.g., internal resonators as substructures or consist of a periodic array of small-scale units. The peculiar apparent properties shall be exploited in three applications: sound transmission loss of lightweight double walls, low-frequency performance of noise barriers, and reduction of structure-borne sound. The project partners aim at a long-term market-driven cooperation on acoustic topics including transfer of results to the industry.