Loading...
Please wait, while we are loading the content...
Similar Documents
Prediction and tailoring of steady‐state broadband sound fields in enclosures using absorption scaling and energy‐intensity boundary elements
| Content Provider | Semantic Scholar |
|---|---|
| Author | Bliss, Donald B. Michalis, Krista A. Franzoni, Linda P. |
| Copyright Year | 2008 |
| Abstract | Enclosures with diffuse reflection boundaries are modeled with an energy‐intensity boundary element method using uncorrelated broadband directional sources. An absorption‐based perturbation analysis shows the spatial variation of acoustic field obeys certain scaling laws. A series expansion in terms of average absorption gives separate boundary integral problems at each order. The lowest‐order solution has a uniform level proportional to the reciprocal of the average absorption. The next‐order solution is independent of average absorption and primarily responsible for spatial variation of the acoustic field. This solution depends on the spatial distribution of absorption and input power sources, but not their overall level. For the primary spatial variation, the effects of the relative distributions of absorption and input power are linear and uncoupled. These distributions can be expressed in terms of constituent spatial modes corresponding to the ways absorption and input power can be distributed. Solve... |
| Starting Page | 2614 |
| Ending Page | 2614 |
| Page Count | 1 |
| File Format | PDF HTM / HTML |
| DOI | 10.1121/1.2935345 |
| Volume Number | 123 |
| Alternate Webpage(s) | http://webistem.com/acoustics2008/acoustics2008/cd1/data/articles/003311.pdf |
| Alternate Webpage(s) | http://www.conforg.fr/acoustics2008/cdrom/data/articles/003311.pdf |
| Alternate Webpage(s) | https://doi.org/10.1121/1.2935345 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
