| contributor author | Y. Kawai | |
| contributor author | T. Terai | |
| date accessioned | 2017-05-08T23:37:13Z | |
| date available | 2017-05-08T23:37:13Z | |
| date copyright | January, 1991 | |
| date issued | 1991 | |
| identifier issn | 1048-9002 | |
| identifier other | JVACEK-28796#22_1.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/109529 | |
| description abstract | It is known that seat rows have a considerable effect on the sound transmission in auditoriums. When the direct wave propagates over the audience seats at near-grazing angle, excess attenuation appears in the low frequency range of 100-300Hz because of the interference between the direct wave and the scattered wave from the seat rows arranged periodically. The integral equation derived from normally derived Helmholtz-Kirchhoff’s formula (NDF) is used to solve this problem. In numerical calculation, it is assumed that the seats are composed of rigid plates of negligible thickness and the potential is uniform in each divided surface element. Sound fields calculated were compared with 1:10 scale-model tests and showed good agreement. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | Calculation of Sound Fields Over Audience Seats by Using Integral Equation Method | |
| type | Journal Paper | |
| journal volume | 113 | |
| journal issue | 1 | |
| journal title | Journal of Vibration and Acoustics | |
| identifier doi | 10.1115/1.2930150 | |
| journal fristpage | 22 | |
| journal lastpage | 27 | |
| identifier eissn | 1528-8927 | |
| keywords | Sound | |
| keywords | Integral equations | |
| keywords | Waves | |
| keywords | Plates (structures) | |
| keywords | Formulas AND Thickness | |
| tree | Journal of Vibration and Acoustics:;1991:;volume( 113 ):;issue: 001 | |
| contenttype | Fulltext | |