| タイトル | Theoretical models of helicopter rotor noise |
| 本文（外部サイト） | http://hdl.handle.net/2060/19780024879 |
| 著者（英） | Hawkings, D. L. |
| 著者所属（英） | Westland Helicopters Ltd. |
| 発行日 | 1978-08-01 |
| 言語 | eng |
| 内容記述 | For low speed rotors, it is shown that unsteady load models are only partially successful in predicting experimental levels. A theoretical model is presented which leads to the concept of unsteady thickness noise. This gives better agreement with test results. For high speed rotors, it is argued that present models are incomplete and that other mechanisms are at work. Some possibilities are briefly discussed. |
| NASA分類 | ACOUSTICS |
| レポートNO | 78N32822 |
| 権利 | No Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/569387 |
