Baker & Hostetler LLP
Hybrid acoustic barrier and absorber
A hybrid acoustic absorption and reflection resonator can includes a rigid structure defining a cell, a membrane with at least one orifice attached to the rigid structure, and a back sheet attached to the rigid structure and covering the cell. The membrane is configured to reflect acoustic waves in a predetermined range of frequencies. The rigid structure, the membrane, and the back sheet define a Helmholtz cavity; the Helmholtz cavity is configured to absorb acoustic energy at a frequency within the predetermined range of frequencies.
The Boeing Company
B H B G
B60R H03H B64C G10K
additional inventional additional inventional
Janet M. Joshua M. Chia-Ming Geoffrey P.
Hogan Montgomery Chang McKnight