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http://hdl.handle.net/1942/34581
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DC Field | Value | Language |
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dc.contributor.author | Ahsani, S | - |
dc.contributor.author | Boukadia, R. F. | - |
dc.contributor.author | Droz, C. | - |
dc.contributor.author | Zielinski, T. G | - |
dc.contributor.author | Jankowski, L | - |
dc.contributor.author | Claeys, C | - |
dc.contributor.author | Desmet, W | - |
dc.contributor.author | DECKERS, Elke | - |
dc.date.accessioned | 2021-07-27T13:23:05Z | - |
dc.date.available | 2021-07-27T13:23:05Z | - |
dc.date.issued | 2020 | - |
dc.date.submitted | 2021-07-12T09:07:58Z | - |
dc.identifier.citation | PROCEEDINGS OF INTERNATIONAL CONFERENCE ON NOISE AND VIBRATION ENGINEERING (ISMA2020) / INTERNATIONAL CONFERENCE ON UNCERTAINTY IN STRUCTURAL DYNAMICS (USD2020), p. 2463 -2472 | - |
dc.identifier.isbn | 978-90-828931-1-3 | - |
dc.identifier.uri | http://hdl.handle.net/1942/34581 | - |
dc.description.abstract | This paper discusses the potential of meta-poro-elastic systems with small mass inclusions to create broadband sound absorption performance under the quarter-wavelength limit. A first feasibility study is done to evaluate whether embedding small mass inclusions in specific types of foam can lead to near-perfect absorption at tuned frequencies. This paper includes an optimization routine to find the material properties that maximize the losses due to the mass inclusion such that a near-perfect/perfect absorption coefficient can be achieved at specified frequencies. The near-perfect absorption is due to the mass-spring effect, which leads to an increase in the viscous loss. Therefore, it is efficient in the viscous regime. The well-known critical frequency, which depends on the porosity and flow resistivity of the material, is commonly used as a criteria to distinguish the viscous regime from the inertial regime. However, for the types of foam of interest to this work, the value of critical frequency is below the mass-spring resonance frequency. Hence, the inverse quality factor is used to provides a more accurate estimation on the frequency at which the transition from the viscous regime to the inertial regime. | - |
dc.language.iso | en | - |
dc.title | On the potential of meta-poro-elastic systems with mass inclusions to achieve broadband near-perfect absorption coefficient | - |
dc.type | Proceedings Paper | - |
local.bibliographicCitation.conferencedate | SEP 07-09, 2020 | - |
local.bibliographicCitation.conferencename | International Conference on Noise and Vibration Engineering (ISMA) / International Conference on Uncertainty in Structural Dynamics (USD) | - |
local.bibliographicCitation.conferenceplace | Leuven, BELGIUM | - |
dc.identifier.epage | 2472 | - |
dc.identifier.spage | 2463 | - |
local.bibliographicCitation.jcat | C1 | - |
local.type.refereed | Refereed | - |
local.type.specified | Proceedings Paper | - |
dc.identifier.isi | WOS:000652006003014 | - |
dc.contributor.orcid | Zielinski, Tomasz G/0000-0002-2550-1667; Jankowski, | - |
dc.contributor.orcid | Lukasz/0000-0002-9773-0688; Ahsani, Sepide/0000-0002-8408-121X; Deckers, | - |
dc.contributor.orcid | Elke/0000-0003-3462-5343 | - |
local.provider.type | wosris | - |
local.bibliographicCitation.btitle | PROCEEDINGS OF INTERNATIONAL CONFERENCE ON NOISE AND VIBRATION ENGINEERING (ISMA2020) / INTERNATIONAL CONFERENCE ON UNCERTAINTY IN STRUCTURAL DYNAMICS (USD2020) | - |
local.uhasselt.international | yes | - |
item.contributor | Ahsani, S | - |
item.contributor | Boukadia, R. F. | - |
item.contributor | Droz, C. | - |
item.contributor | Zielinski, T. G | - |
item.contributor | Jankowski, L | - |
item.contributor | Claeys, C | - |
item.contributor | Desmet, W | - |
item.contributor | DECKERS, Elke | - |
item.fullcitation | Ahsani, S; Boukadia, R. F.; Droz, C.; Zielinski, T. G; Jankowski, L; Claeys, C; Desmet, W & DECKERS, Elke (2020) On the potential of meta-poro-elastic systems with mass inclusions to achieve broadband near-perfect absorption coefficient. In: PROCEEDINGS OF INTERNATIONAL CONFERENCE ON NOISE AND VIBRATION ENGINEERING (ISMA2020) / INTERNATIONAL CONFERENCE ON UNCERTAINTY IN STRUCTURAL DYNAMICS (USD2020), p. 2463 -2472. | - |
item.accessRights | Closed Access | - |
item.fulltext | No Fulltext | - |
Appears in Collections: | Research publications |
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