초록 ▼

A noise barrier system having support members and noise absorbing panels is disclosed. The noise absorbing panels include a front corrugated perforated sheet and a rear corrugated solid sheet which define a chamber. A central sinusoidally corrugated perforated sheet is provided within the chamber. A

A noise barrier system having support members and noise absorbing panels is disclosed. The noise absorbing panels include a front corrugated perforated sheet and a rear corrugated solid sheet which define a chamber. A central sinusoidally corrugated perforated sheet is provided within the chamber. A first blanket of low frequency noise absorbing material is disposed adjacent the front face of the central member and is configured so that a resonance zone is provided between the first blanket and the rear surface of the front sheet. A second blanket of higher frequency sound absorbing material is provided between the rear surface of the central member and the front surface of the rear sheet.

대표청구항 ▼

A noise barrier panel for the abatement of noise from a noise source, comprising: a. a perforated front sheet forming the front outer wall of the panel, said front sheet having a front surface in facing relation to said noise source and a rear surface; b. a nonperforated rear sheet forming the rear

A noise barrier panel for the abatement of noise from a noise source, comprising: a. a perforated front sheet forming the front outer wall of the panel, said front sheet having a front surface in facing relation to said noise source and a rear surface; b. a nonperforated rear sheet forming the rear outer wall of the panel and held in spaced, noncontacting relationship to the front sheet so as to define a chamber therebetween, said rear sheet having a front side in facing relation to said noise source and a rear side; c. a central, perforated corrugated sheet element disposed in said chamber, said central element having a front face in facing relation to said noise source and a rear face; d. a first noise absorbing blanket of material disposed between the rear surface of said front sheet and the front face of said central sheet; and e. a second noise absorbing material disposed between the rear face of said central sheet and the front side of said rear sheet.