Acoustic Meta Material Panel System for Attenuating Sound

Abstract

An acoustic material system (12) has a matrix of material (14) supporting a plurality of evenly spaced and non-evenly spaced wave scatterer elements (16 and 18) of different density. The matrix (14) may consist of poro-elastic materials. The wave scattering elements (16 and 18) may consist of masses of different shapes and sizes. Microporous sheets may be utilized in layers between matrices (14). The holes (32) formed in the sheets (28) may be of different sizes, shapes, and may have three-dimensional profile, such as a conical shape (50).

Description

Claims

1. An acoustic material system (12) comprising: a matrix of material (14) supporting a plurality of evenly spaced wave scattering elements (16) and non-evenly spaced wave scattering elements (18) of any size, shape, weight, and material.

2. The acoustic material system (12) of claim 1, wherein: the matrix of material (14) supporting a plurality of evenly spaced wave scattering elements (16) and non-evenly spaced wave scattering elements (18) of different density.

3. The acoustic material system (12) of claim 1, wherein: the matrix of material (14) consists of poroelastic material (20).

4. The acoustic material system (12) of claim 1, wherein: the wave scatterer elements (16 and 18) consist of masses (22) of different shapes (24) and sizes (26).

5. The acoustic material system (12) of claim 1, wherein: the wave scatterer elements (16 and 18) consist of thin sheets (28) of various polymer and metal materials (30).

6. The acoustic material system (12) of claim 5, wherein: the various polymer and metal materials (30) are taken from the group comprising metalized microporous sheets (28), carbon fiber microporous sheets (28), fiberglass microporous sheets (28), polycarbonate sheets (28), and combinations thereof.

7. The acoustic material system (12) of claim 5, wherein: the sheet (28) can be flat, Non-Flat, spherical, or section only or combinations thereof.

8. The acoustic material system (12) of claim 1, wherein: the wave scatterer elements (16 and 18) consist of thin sheets (28) with micro holes (32) of different shapes (34) and sizes (36) and thickness (38).

9. The acoustic material system (12) of claim 8, wherein: the micro holes (32) are in a randomized non-periodic hole pattern (40) and hole size (36).

10. The acoustic material system (12) of claim 8, wherein: the hole shape (34) may be any circular (42), elliptical (44), rectangular (46), polyhedral (48), volcano punch (conical) (50) shape, or essentially randomized combinations thereof.

11. The acoustic material system (12) of claim 1, wherein: the wave scatterer elements (16 and 18) consist of voids (52) in the matrix material (14) of different shapes and sizes including spheres (54) and thin surfaces (56).

12. The acoustic material system (12) of claim 4, wherein the masses (22) of different shapes (24) and sizes (26) include Helmholtz resonators (58).

13. The acoustic material system (12) of claim 3, wherein: the wave scatterer elements (16 and 18) consist of masses (22) of different shapes (24) and sizes (26).

14. The acoustic material system (12) of claim 11, wherein: the wave scatterer elements (16 and 18) consist of thin sheets (28) of various polymer and metal materials (30).

15. The acoustic material system (12) of claim 14, wherein: the wave scatterer elements (16 and 18) consist of thin sheets (28) with micro holes (32) of different shapes (34) and sizes (36) and thickness (38).

16. The acoustic material system (12) of claim 15, wherein: the wave scatterer elements (16 and 18) consist of voids (52) in the matrix material (14) of different shapes and sizes including spheres (54) and thin surfaces (56).

17. An acoustic curtain system (10) comprising: a curtain (58) fashioned from an acoustic material system (12);the acoustic material system (12) having a matrix of material (14) supporting a plurality of evenly spaced wave scattering elements (16) and non-evenly spaced wave scattering elements (18) of different density.

18. The acoustic curtain system (10) of claim 17, wherein the curtain (58) employs a concertina folding deployment arrangement.

19. The acoustic curtain system (10) of claim 17, further comprising: a locking system to hold the unfolded curtain (58) in place including magnets.

20. The acoustic curtain system (10) of claim 17, wherein the curtain (58) is suspended by hooks at the top attached to a holding rail or rod.

21. An acoustic treatment (11) comprising: an acoustic material system (12) for a range of industrial applications including but not limited to bunks, automobiles, aircraft, RV’s, boats, hospitals;the acoustic material system (12) having a matrix of material (14) supporting a plurality of evenly spaced wave scattering elements (16) and non-evenly spaced wave scattering elements (18) of different density.

22. The acoustic treatment (11) according to claim 21, wherein: the acoustic material system (12) for a range of industrial applications including but not limited to bunks, automobiles, aircraft, RV’s, boats, hospitals.

23. The acoustic treatment (11) according to claim 21, further comprising: an acoustic curtain system (12) for a range of industrial applications including but not limited to bunks, automobiles, aircraft, RV’s, boats, hospitals, doctor’s offices, bedrooms, factory working areas and gymnasiums.