Ehrig, Tom ; Dannemann, Martin ; Luft, Ron ; Adams, Christian ; Modler, Niels ; Kostka, Pawel (2022)
Sound Transmission Loss of a Sandwich Plate with Adjustable Core Layer Thickness.
In: Materials, 2022, 13 (18)
doi: 10.26083/tuprints-00015955
Artikel, Zweitveröffentlichung, Verlagsversion
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Kurzbeschreibung (Abstract)
Compressible Constrained Layer Damping (CCLD) is a novel, semi-active, lightweightcompatible solution for vibration mitigation based on the well-known constrained layer damping principle. The sandwich-like CCLD set-up consists of a base structure, a constraining plate, and a compressible open-cell foam core in between, enabling the adjustment of the structure’s vibration behaviour by changing the core compression using different actuation pressures. The aim of the contribution is to show to what degree, and in which frequency range the acoustic behaviour can be tuned using CCLD. Therefore, the sound transmission loss (TL), as an important vibro-acoustic index, is determined in an acoustic window test stand at different actuation pressures covering a frequency range from 0.5 to 5 kHz. The different actuation pressures applied cause a variation of the core layer thickness (from 0.9 d₀ to 0.3 d₀), but the resulting changes of the stiffness and damping of the overall structure have no significant influence on the TL up to approximately 1 kHz for the analysed CCLD design. Between 1 kHz and 5 kHz, however, the TL can be influenced considerably well by the actuation pressure applied, due to a damping-dominated behaviour around the critical frequency
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2022 |
| Autor(en): | Ehrig, Tom ; Dannemann, Martin ; Luft, Ron ; Adams, Christian ; Modler, Niels ; Kostka, Pawel |
| Art des Eintrags: | Zweitveröffentlichung |
| Titel: | Sound Transmission Loss of a Sandwich Plate with Adjustable Core Layer Thickness |
| Sprache: | Englisch |
| Publikationsjahr: | 2022 |
| Publikationsdatum der Erstveröffentlichung: | 2022 |
| Verlag: | MDPI |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Materials |
| Jahrgang/Volume einer Zeitschrift: | 13 |
| (Heft-)Nummer: | 18 |
| Kollation: | 10 Seiten |
| DOI: | 10.26083/tuprints-00015955 |
| URL / URN: | https://tuprints.ulb.tu-darmstadt.de/15955 |
| Zugehörige Links: | |
| Herkunft: | Zweitveröffentlichung |
| Kurzbeschreibung (Abstract): | Compressible Constrained Layer Damping (CCLD) is a novel, semi-active, lightweightcompatible solution for vibration mitigation based on the well-known constrained layer damping principle. The sandwich-like CCLD set-up consists of a base structure, a constraining plate, and a compressible open-cell foam core in between, enabling the adjustment of the structure’s vibration behaviour by changing the core compression using different actuation pressures. The aim of the contribution is to show to what degree, and in which frequency range the acoustic behaviour can be tuned using CCLD. Therefore, the sound transmission loss (TL), as an important vibro-acoustic index, is determined in an acoustic window test stand at different actuation pressures covering a frequency range from 0.5 to 5 kHz. The different actuation pressures applied cause a variation of the core layer thickness (from 0.9 d₀ to 0.3 d₀), but the resulting changes of the stiffness and damping of the overall structure have no significant influence on the TL up to approximately 1 kHz for the analysed CCLD design. Between 1 kHz and 5 kHz, however, the TL can be influenced considerably well by the actuation pressure applied, due to a damping-dominated behaviour around the critical frequency |
| Freie Schlagworte: | sound transmission loss, semi-active damping, sandwich panel, morphing structure, compressible constrained layer damping, composite materials |
| Status: | Verlagsversion |
| URN: | urn:nbn:de:tuda-tuprints-159555 |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften und Maschinenbau |
| Fachbereich(e)/-gebiet(e): | 16 Fachbereich Maschinenbau 16 Fachbereich Maschinenbau > Fachgebiet Systemzuverlässigkeit, Adaptronik und Maschinenakustik (SAM) |
| Hinterlegungsdatum: | 09 Feb 2022 14:58 |
| Letzte Änderung: | 10 Feb 2022 06:08 |
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| Suche nach Titel in: | TUfind oder in Google |
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- Sound Transmission Loss of a Sandwich Plate with Adjustable Core Layer Thickness. (deposited 09 Feb 2022 14:58) [Gegenwärtig angezeigt]
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