What is it about?
It is about experiments and predictions of acoustic properties of materials used to reduce noise of aircraft to deal with community noise.
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Why is it important?
It has a new model based on experimental data to predict the behaviour of low porosity liners and preliminary results regarding multiple tone excitations and their effect on liner impedance.
Perspectives
This is an important work to understand the problems associated with the type of signal on impedance predictions. The physics needs to be further understood in order to obtain better prediction models. So, this work tries to address this issue.
Mr Pablo G Serrano
University of Southampton
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This page is a summary of: Non-linear interaction of multiple tones on perforated liners, May 2016, American Institute of Aeronautics and Astronautics (AIAA),
DOI: 10.2514/6.2016-2790.
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