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Communication Dans Un Congrès Année : 2020

Non-local boundary control for broadband non-reciprocal propagation analytical demonstration and experimental validation

Résumé

The semi-active impedance control techniques can offer new perspectives for acoustic treatment in the nacelle inlet of the new generation of Ultra-High-By-Pass-Ratio turbofan engines. In this contribution we present a non-local boundary condition capable of achieving broadband nonreciprocal propagation in a waveguide, envisaging the possibility of energy harvesting, other than acoustic transmission attenuation. The non-local boundary control concept is first illustrated analytically, and then it is implemented experimentally through a liner of electroacoustic devices.
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Dates et versions

hal-03360736 , version 1 (01-10-2021)

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  • HAL Id : hal-03360736 , version 1

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Emanuele de Bono, Manuel Collet, Sami Karkar, Gaël Matten, Morvan Ouisse. Non-local boundary control for broadband non-reciprocal propagation analytical demonstration and experimental validation. Euro-Mediterranean Conference on Structural Dynamics and Vibroacoustics, Feb 2020, Napoli, Italy. ⟨hal-03360736⟩
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