Dinçer, Ugur und Bothor, Carlos und Johannsen, Erik und Misol, Malte und Monner, Hans Peter (2025) Effect of fabrication parameters on the vibro-acoustic behavior of 3-D printed membrane-type resonators. In: internoise 2025. Inter.Noise 2025, 2025-08-24 - 2025-08-27, Sao Paulo, Brazil. (im Druck)
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Kurzfassung
The rising interest in acoustic metamaterial applications stems from the ability to manipulate sound waves through locally resonant structures. Membrane-type resonators continue to arouse the curiosity of researchers, particularly because of their potential for low-frequency sound insulation purposes. When designing a membrane-type resonator, the magnitude of stress within the membrane is a critical factor in attenuating targeted frequencies. The fused deposition modeling (FDM) method offers versatile fabrication options for resonator design via multi-material printing capabilities. The residual stress resulting from the one-shot printing process of a thin, flexible membrane and a relatively rigid frame is expected to vary according to the fabrication parameters. To address this, the effect of these parameters within the FDM process on the pre-stress of membrane resonators is examined. This study involves modal analysis to determine pre-stress using a laser Doppler vibrometer, with results compared to numerical simulations. Finally, the sound transmission loss of selected samples is measured using an impedance tube.
| elib-URL des Eintrags: | https://elib.dlr.de/216296/ | ||||||||||||||||||||||||
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| Dokumentart: | Konferenzbeitrag (Vortrag) | ||||||||||||||||||||||||
| Titel: | Effect of fabrication parameters on the vibro-acoustic behavior of 3-D printed membrane-type resonators | ||||||||||||||||||||||||
| Autoren: |
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| Datum: | 2025 | ||||||||||||||||||||||||
| Erschienen in: | internoise 2025 | ||||||||||||||||||||||||
| Referierte Publikation: | Ja | ||||||||||||||||||||||||
| Open Access: | Nein | ||||||||||||||||||||||||
| Gold Open Access: | Nein | ||||||||||||||||||||||||
| In SCOPUS: | Nein | ||||||||||||||||||||||||
| In ISI Web of Science: | Nein | ||||||||||||||||||||||||
| Status: | im Druck | ||||||||||||||||||||||||
| Stichwörter: | acoustic metamaterials, multi-material printing, sound attenuation | ||||||||||||||||||||||||
| Veranstaltungstitel: | Inter.Noise 2025 | ||||||||||||||||||||||||
| Veranstaltungsort: | Sao Paulo, Brazil | ||||||||||||||||||||||||
| Veranstaltungsart: | internationale Konferenz | ||||||||||||||||||||||||
| Veranstaltungsbeginn: | 24 August 2025 | ||||||||||||||||||||||||
| Veranstaltungsende: | 27 August 2025 | ||||||||||||||||||||||||
| Veranstalter : | The International Institute of Noise Control Engineering (I-INCE) | ||||||||||||||||||||||||
| HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||||||||||||||
| HGF - Programm: | Luftfahrt | ||||||||||||||||||||||||
| HGF - Programmthema: | Komponenten und Systeme | ||||||||||||||||||||||||
| DLR - Schwerpunkt: | Luftfahrt | ||||||||||||||||||||||||
| DLR - Forschungsgebiet: | L CS - Komponenten und Systeme | ||||||||||||||||||||||||
| DLR - Teilgebiet (Projekt, Vorhaben): | L - Wartung und Kabine | ||||||||||||||||||||||||
| Standort: | Braunschweig | ||||||||||||||||||||||||
| Institute & Einrichtungen: | Institut für Systemleichtbau > Adaptronik | ||||||||||||||||||||||||
| Hinterlegt von: | Dinçer, Ugur | ||||||||||||||||||||||||
| Hinterlegt am: | 08 Sep 2025 23:47 | ||||||||||||||||||||||||
| Letzte Änderung: | 08 Sep 2025 23:47 |
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