درباره ما
NASA-CR-159363
Analytical prediction of the interior noise for cylindrical models of aircraft fuselages for prescribed exterior noise fields Phase I: Development and validation of preliminary analytical models
Year: 1980
Abstract: The basic theoretical work required to understand sound transmission into an enclosed space (that is, one closed by the transmitting structure) is developed for random pressure fields and for harmonic (tonal) excitation. The analysis is used to predict the noise reducton of unpressurized unstiffened cylinder, and also the interior response of the cylinder given a tonal (plane wave) excitation. Predictions and measurements are compared and the transmission is analyzed. In addition, results for tonal (harmonic) mechanical excitation are considered.
Subject: AIRCRAFT COMPARTMENTS
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| contributor author | NASA - National Aeronautics and Space Administration (NASA) | |
| date accessioned | 2017-09-04T16:14:05Z | |
| date available | 2017-09-04T16:14:05Z | |
| date copyright | 01/01/1980 | |
| date issued | 1980 | |
| identifier other | STHOEEAAAAAAAAAA.pdf | |
| identifier uri | https://yse.yabesh.ir/std/handle/yse/77358 | |
| description abstract | The basic theoretical work required to understand sound transmission into an enclosed space (that is, one closed by the transmitting structure) is developed for random pressure fields and for harmonic (tonal) excitation. The analysis is used to predict the noise reducton of unpressurized unstiffened cylinder, and also the interior response of the cylinder given a tonal (plane wave) excitation. Predictions and measurements are compared and the transmission is analyzed. In addition, results for tonal (harmonic) mechanical excitation are considered. | |
| language | English | |
| title | NASA-CR-159363 | num |
| title | Analytical prediction of the interior noise for cylindrical models of aircraft fuselages for prescribed exterior noise fields Phase I: Development and validation of preliminary analytical models | en |
| type | standard | |
| page | 236 | |
| status | Active | |
| tree | NASA - National Aeronautics and Space Administration (NASA):;1980 | |
| contenttype | fulltext | |
| subject keywords | AIRCRAFT COMPARTMENTS | |
| subject keywords | CYLINDRICAL BODIES | |
| subject keywords | FUSELAGES | |
| subject keywords | GRAPHS (CHARTS) | |
| subject keywords | HARMONIC EXCITATION | |
| subject keywords | MATHEMATICAL MODELS | |
| subject keywords | NOISE PREDICTION (AIRCRAFT) | |
| subject keywords | NOISE REDUCTION | |
| subject keywords | PLANE WAVES | |
| subject keywords | SOUND TRANSMISSION | |
| subject keywords | TABLES (DATA) |