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Article Dans Une Revue Journal of the Acoustical Society of America Année : 2022

Radiation efficiency of a distribution of baffled pistons with arbitrary phases

Carlos García A
Nicolas Dauchez
Gautier Lefebvre

Résumé

The radiation resistance and efficiency of a collection of circular pistons, randomly placed on a plane and vibrating with arbitrary phases, are expressed as a combination of the self- and mutual-radiation components. We use the first product or bridge theorem to construct the directivity pattern of this type of arrangement and the radiation properties are calculated according to Bouwkamp's impedance theorem. To illustrate the versatility of our approach, we refer to special cases for symmetric arrangements, for example, to compare with the modal radiation efficiency in structures having “regular” modal patterns
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Dates et versions

hal-03840698 , version 1 (05-11-2022)

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Carlos García A, Nicolas Dauchez, Gautier Lefebvre. Radiation efficiency of a distribution of baffled pistons with arbitrary phases. Journal of the Acoustical Society of America, 2022, 152 (2), pp.1135 - 1145. ⟨10.1121/10.0013569⟩. ⟨hal-03840698⟩
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