Acoustic liner for attenuating noise

Details Acoustic liner for attenuating noise Acoustic liner for attenuating noise

1980-04-28

1982-05-04

Hix, L. T.

Acoustics

Sound-modifying means

Sound absorbing panels

181224, E04B 182

Patent

active

043278167

ABSTRACT:
An acoustic liner for attenuating noise comprises a backing face and a perforated facing sheet arranged over and spaced from the backing face, the perforated facing sheet being on non-uniform porosity in the direction of noise propagation.

REFERENCES:
patent: 3255687 (1966-06-01), Glaser
patent: 3913702 (1975-10-01), Wirt et al.

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