| Download | - View accepted manuscript: Low-frequency structure-borne sound power measurements using heavyweight reception plates (PDF, 1.3 MiB)
|
|---|
| Author | Search for: Reinhold, Steffi; Search for: Hopkins, Carl; Search for: Zeitler, Berndt1 |
|---|
| Affiliation | - National Research Council of Canada. Construction
|
|---|
| Format | Text, Article |
|---|
| Conference | 24th International Congress on Sound and Vibration ICSV, July 23-27, 2017, London, UK |
|---|
| Subject | structure-borne sound power; reception plate; FEM |
|---|
| Abstract | To quantify the structure-borne sound power injected by building machinery into heavyweight buildings the reception plate method according to EN 15657-1 can be used to provide input data for the prediction model described in EN 12354-5. This paper concerns the assessment of different sampling strategies for vibration measurements that are needed to determine the reception plate power. This is carried out using a validated finite element model for a heavyweight reception plate with viscoelastic material around its boundaries. The lowest differences between the direct injected power and reception plate power are obtained by using a regular grid of sampling positions over the whole reception plate. These investigations are based on harmonic force excitation of randomly distributed single-contact sources. A numerical approach to estimate the structural behaviour of harmonic point force excitations is compared with measurements on a laboratory heavyweight reception plate. Building machinery have usually more than one contact point to the structure, where they are connected. Therefore, multiple-contact sources such as white goods are also determined. The resulting effects of harmonic multiple-force excitations with different positions on the validated reception plate model are discussed. |
|---|
| Publication date | 2017-07-27 |
|---|
| Publisher | International Congress on Sound and Vibration |
|---|
| In | |
|---|
| Series | |
|---|
| Language | English |
|---|
| Peer reviewed | Yes |
|---|
| NPARC number | 23002145 |
|---|
| Export citation | Export as RIS |
|---|
| Report a correction | Report a correction (opens in a new tab) |
|---|
| Record identifier | ae76339b-d2f5-4bee-a54b-34ac348871e2 |
|---|
| Record created | 2017-08-25 |
|---|
| Record modified | 2020-06-04 |
|---|
