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Vibrational damping properties of finite microperforated plates

Autor: Gallerand, Lucie, Legrand, Matthias, Dupont, Thomas, Leclaire​, Philippe

Publikováno v: INTER-NOISE and NOISE-CON Congress and Conference Proceedings. 265:5343-5349

Microperforated plates (MPP) are traditionally used to advantageously absorb acoustic waves in sound control technologies. However, less is known concerning the additional structural damping they can induce. The latter is activated through exchanges

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::42f953e8c3268a81043e5f99689c48c8
https://doi.org/10.3397/in_2022_0778

Damping performance of finite microperforated plates using multi-sized and spacial distributions of perforations

Autor: Gallerand, Lucie, Legrand, Mathias, Dupont, Thomas, Leclaire​, Philippe

In the context of structural dynamics, recent works by the authors showed that microperforations can be used to mitigate vibration. Microperforated plates (MPPs) have been shown to exhibit substantial added damping stemming from fluid-structure inter

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______3711::717f3b49f8bd20a74212a63da8f46fbe
https://hal.science/hal-04122565

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The use of microperforated plates to attenuate cavity resonances

Autor: Benjamin Fenech, Graeme Keith, Finn Jacobsen

Publikováno v: Fenech, B, Keith, G & Jacobsen, F 2006, ' The use of microperforated plates to attenuate cavity resonances ', Acoustical Society of America. Journal, vol. 120, no. 4, pp. 1851-1858 . https://doi.org/10.1121/1.2258438

The use of microperforated plates to introduce damping in a closed cavity is examined. By placing a microperforated plate well inside the cavity instead of near a wall as traditionally done in room acoustics, high attenuation can be obtained for spec

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cc06db028853eb6a4ef9ad12dbc8791e
https://orbit.dtu.dk/en/publications/7bf1d87d-998c-41a7-bc7c-4bde6d8d90d3