Generalized approximate equation for duct-lining sound attenuation can be used for initial acoustic-liner design and analysis.
Attenuation of sound in ducts with acoustic treatment
NASA Tech Briefs ; 1 , 2
1976-08-01
Miscellaneous
No indication
English
Spinning mode sound propagation in ducts with acoustic treatment
TIBKAT | 1975
|The attenuation of sound in unlined ducts with flexible walls
Online Contents | 1994
|The effects of flanking transmission on sound attenuation in lined ducts
Online Contents | 1995
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