| タイトル | Empirical Prediction of Aircraft Landing Gear Noise |
| 本文（外部サイト） | http://hdl.handle.net/2060/20050209966 |
| 著者（英） | Golub, Robert A.; Guo, Yue-Ping |
| 著者所属（英） | NASA Langley Research Center; Boeing Phantom Works |
| 発行日 | 2005-07-01 |
| 言語 | eng |
| 内容記述 | This report documents a semi-empirical/semi-analytical method for landing gear noise prediction. The method is based on scaling laws of the theory of aerodynamic noise generation and correlation of these scaling laws with current available test data. The former gives the method a sound theoretical foundation and the latter quantitatively determines the relations between the parameters of the landing gear assembly and the far field noise, enabling practical predictions of aircraft landing gear noise, both for parametric trends and for absolute noise levels. The prediction model is validated by wind tunnel test data for an isolated Boeing 737 landing gear and by flight data for the Boeing 777 airplane. In both cases, the predictions agree well with data, both in parametric trends and in absolute noise levels. |
| NASA分類 | Acoustics |
| レポートNO | NASA/CR-2005-213780 |
| 権利 | No Copyright |
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