NASA NTRS · 20170004331
External Acoustic Liners for Multi-Functional Aircraft Noise Reduction
Abstract
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.
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Jones, Michael G., Thomas, Russell H., Nark, Douglas M., Howerton, Brian M., Czech, Michael J.. 2017-04-18. External Acoustic Liners for Multi-Functional Aircraft Noise Reduction. https://ntrs.nasa.gov/citations/20170004331
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