Talks and Poster Presentations (with Proceedings-Entry):
M. Neusser, A. Wilfring, F. Dolezal, H. Müllner:
"Evaluation Of The Radiated Sound Power Of Lightweight Building Constructions Based On Laser Scanning Vibrometer Measurements";
Talk: Euroregio 2016,
Porto;
06-13-2016
- 06-15-2016; in: "Eurorregio 2016",
(2016).
English abstract:
Different measurement methods of radiation efficiency are investigated. The first method uses an intensity probe and a laser vibrometer. The second method is based on the measurement of the sound pressure level in a diffuse sound field. The third method (Discrete Calculation Method - DCM) applies the Rayleigh integral method to calculate the radiated sound power into the semi-infinite space by measuring surface velocity with a laser scanning Doppler vibrometer. In a second step, a finite-element-model of the investigated lightweight building construction is presented. The results of these simulations are compared to the results of the investigated measurement methods.