Conference_programme: 17.6 - Predicting vibration / impact / structure-borne sound in buildings
Lecture: Measurement and prediction of structure-borne sound transmission from machinery in timber-frame buildings
Author(s): Mayr Andreas, Schöpfer Fabian, Schanda Ulrich, Hopkins Carl
Summary:
Structure-borne sound caused by service equipment can be a major reason for discomfort and annoyance in multi-family residential buildings. However, for lightweight timber constructions there are no practical tools available to predict the sound pressure level caused by machinery. Therefore consultancies in the field of building acoustics often rely on previous project experience during the planning process. This leads to uncertainty at the design stage, particularly when the position of the machinery is unknown or undecided. This paper makes use of a simplified approach to predict the equipment sound pressure level by using measured transfer functions to describe the sound transmission. These transfer functions are defined as the average sound pressure level in a receiving room relative to the injected structure-borne sound power averaged over multiple excitation points. Previous work led to the experimental procedure being described in an Annex of the recently revised ISO 10848-1:2017. This paper reports on an ongoing research project at the University of Applied Sciences Rosenheim concerning the collection of transmission functions from various timber-frame buildings to provide a catalogue of data that can be used at the design stage of a building.
Corresponding author
Name: Dr Andreas Mayr
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Country: Germany
