Resistance in Helmholtz Resonators: Exploring the potential of sound absorption created by additive manufacturing

This research aims at improving the performance of Helmholtz resonators by adding resistance using additive manufacturing. Current use of Helmholtz resonators is focused on tonal applications and modal issues, because of the frequency specific behaviour. A normal Helmholtz resonator curve has a decreasing bandwidth when the peak increases. The...

Acoustics by additive manufacturing

This study focuses on exploring the merging field of additive manufacturing and acoustics and introduces a new type of sound absorber which is regulating performance by its geometrical characteristics. A direct relation between geometry, fabrication and acoustic performance is suggested.