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A FEM-based planning tool for the vibro-acoustic design of wooden floors at low frequencies

  • Within the scope of the recently finished cooperate research project "VibWood" at Technical University of Munich and Rosenheim University of Applied Sciences, fully parametrized numerical models for lightweight wooden floor constructions have been developed and calibrated by experimental modal analyses. Based on a vast parametric study including floating floors and suspended ceilings a database of narrowband sound power levels in the frequency range up to 125 Hz for a wide range of floor dimensions has been set up. A procedure will be presented on how to process the numerical data and derive single number values that allow a comparison to the standardized rating of impact sound insulation according to DIN EN ISO 717-2. The derived data is implemented into a graphical user interface (GUI). This GUI is available for free. The database is open for additional geometries and will be enhanced by different constructions in the near future.

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Metadaten
Author:M. Kohrmann, M. Buchschmid, Ulrich Schanda, G. Müller
Parent Title (English):Proceedings of Inter-Noise 2016
Document Type:Conference Proceeding
Language:English
Publication Year:2016
Tag:Holzbau; Schallmesstechnik
faculties / departments:Fakultät für Angewandte Natur- und Geisteswissenschaften
Dewey Decimal Classification:6 Technik, Medizin, angewandte Wissenschaften / 60 Technik / 600 Technik, Technologie