Sound Transmission Loss of Panels with Resonant Elements

Efimtsov, B. M.; Lazarev, L. A.

doi:10.1007/bf03353582

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B2 Helmholtz Resonator Model1

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Cited by 3 publications

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“…As described by [46] and [57], the transfer matrix of the resonator T HR needed for parallel assemblies with resonant inclusion (represented by equation ( 5)), is written as a product of inertial and acoustic components [57].…”

Section: B2 Helmholtz Resonator Modelmentioning

confidence: 99%

Origami-based auxetic tunable Helmholtz resonator for noise control

Benouhiba¹,

Rougeot²,

Andreff³

et al. 2021

Smart Mater. Struct.

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In this paper, we propose an origami-based auxetic tunable Helmholtz resonator. By controlling the volume of the cavity, a real-time tunability of the resonance frequency can be achieved. The design is inspired by the waterbomb origami base, which expands when stretched and contracts when compressed. Such a foldable structure offers a wide range of volume variation, which corresponds to a larger frequency shift in the bandwidth of interest. Based on the design of the origami resonator, multi-physical models are established to understand and predict the parameters' effect on the device's behavior. After fabrication, experimental tests are conducted on physical prototypes to validate the models and illustrate the effectiveness of the concept.

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Section: B2 Helmholtz Resonator Modelmentioning

confidence: 99%