Radiation efficiency characteristics estimated by sound intensity method
Radiation efficiency factor is determined conventionally by a very complicated method and may be carried out only in laboratory condition. Using SI techniques, precise measurements can be made even under in-situ conditions, saving a lot of time in comparison to the classical method. The article pres...
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| Format: | Article |
| Language: | English |
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Institute of Fundamental Technological Research Polish Academy of Sciences
2014-05-01
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| Series: | Archives of Acoustics |
| Online Access: | https://acoustics.ippt.pan.pl/index.php/aa/article/view/1151 |
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| author | S. WEYNA |
| author_facet | S. WEYNA |
| author_sort | S. WEYNA |
| collection | DOAJ |
| description | Radiation efficiency factor is determined conventionally by a very complicated method and may be carried out only in laboratory condition. Using SI techniques, precise measurements can be made even under in-situ conditions, saving a lot of time in comparison to the classical method. The article presents the application of SI to measure radiation efficiency characteristics for ship cabin partitions (bulkheads, floors and ceilings). Tests carried out with SI techniques using scanning method to measure are compared with those made by conventional method. Based on the near-field acoustic intensity measurements with the fixed point method, the spatial intensity vectors in a plane close to the ship partitions. As a result of such investigation, a three-dimensional flow map of active intensity vectors, together with paths of energy streamlines, is graphically illustrated for one of the partitions. |
| format | Article |
| id | doaj-art-ceb44bfc622d4074af322f7cb01c05d4 |
| institution | DOAJ |
| issn | 0137-5075 2300-262X |
| language | English |
| publishDate | 2014-05-01 |
| publisher | Institute of Fundamental Technological Research Polish Academy of Sciences |
| record_format | Article |
| series | Archives of Acoustics |
| spelling | doaj-art-ceb44bfc622d4074af322f7cb01c05d42025-08-20T02:39:19ZengInstitute of Fundamental Technological Research Polish Academy of SciencesArchives of Acoustics0137-50752300-262X2014-05-01182Radiation efficiency characteristics estimated by sound intensity methodS. WEYNA0Faculty of Maritime Technology, Technical University of SzczecinRadiation efficiency factor is determined conventionally by a very complicated method and may be carried out only in laboratory condition. Using SI techniques, precise measurements can be made even under in-situ conditions, saving a lot of time in comparison to the classical method. The article presents the application of SI to measure radiation efficiency characteristics for ship cabin partitions (bulkheads, floors and ceilings). Tests carried out with SI techniques using scanning method to measure are compared with those made by conventional method. Based on the near-field acoustic intensity measurements with the fixed point method, the spatial intensity vectors in a plane close to the ship partitions. As a result of such investigation, a three-dimensional flow map of active intensity vectors, together with paths of energy streamlines, is graphically illustrated for one of the partitions.https://acoustics.ippt.pan.pl/index.php/aa/article/view/1151 |
| spellingShingle | S. WEYNA Radiation efficiency characteristics estimated by sound intensity method Archives of Acoustics |
| title | Radiation efficiency characteristics estimated by sound intensity method |
| title_full | Radiation efficiency characteristics estimated by sound intensity method |
| title_fullStr | Radiation efficiency characteristics estimated by sound intensity method |
| title_full_unstemmed | Radiation efficiency characteristics estimated by sound intensity method |
| title_short | Radiation efficiency characteristics estimated by sound intensity method |
| title_sort | radiation efficiency characteristics estimated by sound intensity method |
| url | https://acoustics.ippt.pan.pl/index.php/aa/article/view/1151 |
| work_keys_str_mv | AT sweyna radiationefficiencycharacteristicsestimatedbysoundintensitymethod |