Single equivalent approximation for multiple contact structure-borne sound sources in buildings

  • The work reported in the paper addresses structure-borne sound transmission between multiple contact sources and non homogeneous plate receiver structures. This study concentrates on a practical method of predicting the installed structure-borne sound power from mechanical installations in lightweight buildings. The structure-borne sound power is a function of source activity, source mobility and receiver mobility, and all three quantities must be known to some degree. It is rarely practical to consider all transmission paths individually and in detail, and therefore, reduced data sets and less computationally demanding procedures are proposed. The paper examines how source data can be used to assemble single equivalent values, using spatial averages and magnitudes. Single equivalent values of receiver mobility also are proposed for lightweight, point-connected ribbed plate constructions. In case studies, the single equivalent values are used for predicting the structure-borne power in the installed condition.

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Author:Andreas R. Mayr, Barry Gibbs
Parent Title (English):Acta Acoustica unitet with Acoustica
Document Type:Article (peer reviewed)
Publication Year:2012
Tag:Contact Structure-Borne Sound Sources in Buildings; Single Equivalent Approximation; Sound transmission
Issue:98 (2012)
First Page:402
Last Page:410
faculties / departments:Fakultät für Angewandte Natur- und Geisteswissenschaften
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 53 Physik