A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Shaped acoustic absorber
A shaped acoustic absorber assembly is provided with broadband absorption. The assembly includes an acoustic panel defining a plurality of apertures, and a plurality of tubular quarter-wavelength resonators of variable lengths provided respectively aligned with the plurality of apertures and coupled to the acoustic panel. Each tubular quarter-wavelength resonator includes at least one perimeter boundary wall extending in a longitudinal length direction and defining a chamber cavity having a chamber volume. A first end defines an opening aligned with one of the plurality of apertures and coupled to the acoustic panel. A second end is provided opposite the first end, and is sealed and configured for being located adjacent a target substrate. Methods are provided for shaping the tubular quarter-wavelength resonators to coordinate with a geometry and dimensions of a target substrate and then preserving a shape of the tubular quarter-wavelength resonators in a structurally rigid configuration.
Shaped acoustic absorber
A shaped acoustic absorber assembly is provided with broadband absorption. The assembly includes an acoustic panel defining a plurality of apertures, and a plurality of tubular quarter-wavelength resonators of variable lengths provided respectively aligned with the plurality of apertures and coupled to the acoustic panel. Each tubular quarter-wavelength resonator includes at least one perimeter boundary wall extending in a longitudinal length direction and defining a chamber cavity having a chamber volume. A first end defines an opening aligned with one of the plurality of apertures and coupled to the acoustic panel. A second end is provided opposite the first end, and is sealed and configured for being located adjacent a target substrate. Methods are provided for shaping the tubular quarter-wavelength resonators to coordinate with a geometry and dimensions of a target substrate and then preserving a shape of the tubular quarter-wavelength resonators in a structurally rigid configuration.
Shaped acoustic absorber
LEE TAEHWA (author) / IIZUKA HIDEO (author)
2023-01-24
Patent
Electronic Resource
English