Conference_programme: 17.6 - Predicting vibration / impact / structure-borne sound in buildings
Lecture: Reception plate method for tonal vibro-acoustic sources in buildings.
Author(s): Gibbs Barry
Summary:
This paper considers the application of the reception plate method to low-frequency tonal vibro-acoustic sources in buildings. The source quantities, required for prediction of the transmitted structure-borne power into a supporting/connected structure, are: source activity (either the free velocity or the blocked force) and source mobility. The reception plate method was developed to yield the source data as frequency band-averaged values. However, building services equipment (fans, motors, pumps, etc.) have strong low-frequency tonal components, which can strongly influence the human perception of the resultant noise. To obtain the required narrow-band data, the reception plate method is applied to two tonal sources. The uncertainties in the method are considered by measurement of the free velocities and mobilities of the sources, and of the mobilities of several receiver plates, and then by numerical simulations of the power flow when the sources and receivers are combined.
Corresponding author
Name: Prof Barry Gibbs
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Country: United Kingdom
