| Téléchargement | - Voir le manuscrit accepté : Low-frequency structure-borne sound power measurements using heavyweight reception plates (PDF, 1.3 Mio)
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| Auteur | Rechercher : Reinhold, Steffi; Rechercher : Hopkins, Carl; Rechercher : Zeitler, Berndt1 |
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| Affiliation | - Conseil national de recherches Canada. Construction
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| Format | Texte, Article |
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| Conférence | 24th International Congress on Sound and Vibration ICSV, July 23-27, 2017, London, UK |
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| Sujet | structure-borne sound power; reception plate; FEM |
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| Résumé | To quantify the structure-borne sound power injected by building machinery into heavyweight buildings the reception plate method according to EN 15657-1 can be used to provide input data for the prediction model described in EN 12354-5. This paper concerns the assessment of different sampling strategies for vibration measurements that are needed to determine the reception plate power. This is carried out using a validated finite element model for a heavyweight reception plate with viscoelastic material around its boundaries. The lowest differences between the direct injected power and reception plate power are obtained by using a regular grid of sampling positions over the whole reception plate. These investigations are based on harmonic force excitation of randomly distributed single-contact sources. A numerical approach to estimate the structural behaviour of harmonic point force excitations is compared with measurements on a laboratory heavyweight reception plate. Building machinery have usually more than one contact point to the structure, where they are connected. Therefore, multiple-contact sources such as white goods are also determined. The resulting effects of harmonic multiple-force excitations with different positions on the validated reception plate model are discussed. |
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| Date de publication | 2017-07-27 |
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| Maison d’édition | International Congress on Sound and Vibration |
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| Dans | |
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| Série | |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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| Numéro NPARC | 23002145 |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | ae76339b-d2f5-4bee-a54b-34ac348871e2 |
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| Enregistrement créé | 2017-08-25 |
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| Enregistrement modifié | 2020-06-04 |
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