Sound absorbing structure having one or more acoustic scatterers for improved sound transmission loss
AssigneeToyota Motor Engineering & Manufacturing North America, Inc.
InventorsXiaoshi Su, Debasish Banerjee
Life of this patent
Estimating the term…
Abstract
A sound absorbing structure includes a wall having a first side and a second side and at least one acoustic scatterer coupled to a first side of the wall. The first side of the wall may be positioned to face a source of noise, such as moving motor vehicles, airplanes, and the like. The at least one acoustic scatterer has an opening and at least one channel. The at least one channel has a channel open end and a channel terminal end with the channel open end being in fluid communication with the opening.
Claims20
A sound absorbing structure comprising:
- a wall having a first side and a second side, the first side of the wall being positioned to face a source of a noise;
- at least one acoustic scatterer coupled to a first side of the wall, the at least one acoustic scatterer having a resonant frequency;
- the at least one acoustic scatterer having an opening and at least one channel;
- and
- wherein the at least one channel has a channel open end and a channel terminal end, the channel open end being in fluid communication with the opening.
A system from reducing noise generated by one or more vehicles, the system comprising;
- a surface that supports the one or more vehicles;
- a wall adjacent to and extending along a length of the surface, the wall having a first side and a second side, the first side faces towards the surface;
- at least one acoustic scatterer coupled to a first side of the wall, the at least one acoustic scatterer having a resonant frequency;
- the at least one acoustic scatterer having an opening and at least one channel;
- and
- wherein the at least one channel has a channel open end and a channel terminal end, the channel open end being in fluid communication with the opening.
Dependencies are inferred from the claim text.