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 special properties shall be used 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 for a long-term, market-driven cooperation on acoustic topics including transfer of results to industry.
Project by Fraunhofer IBP