Acoustic liners for aircraft noise reduction include one or more chambers that are configured to provide a pressure-release surface such that the engine noise generation process is inhibited and/or absorb sound by converting the sound into heat energy. The size and shape of the chambers can be selected to inhibit the noise generation process and/or absorb sound at selected frequencies.
External acoustic liners for multi-functional aircraft noise reduction
2017-04-18
Patent
Electronic Resource
English
IPC: | B64C AEROPLANES , Flugzeuge |