| タイトル | Recent Langley helicopter acoustics contributions |
| 本文（外部サイト） | http://hdl.handle.net/2060/19880007263 |
| 著者（英） | Powell, C. A.; Morgan, Homer G.; Pao, S. P. |
| 著者所属（英） | NASA Langley Research Center |
| 発行日 | 1988-02-01 |
| 言語 | eng |
| 内容記述 | The helicopter acoustics program at NASA Langley has included technology for elements of noise control ranging from sources of noise to receivers of noise. The scope of Langley contributions for about the last decade is discussed. Specifically, the resolution of two certification noise quantification issues by subjective acoustics research, the development status of the helicopter system noise prediction program ROTONET are reviewed and the highlights from research on blade rotational, broadband, and blade vortex interaction noise sources are presented. Finally, research contributions on helicopter cabin (or interior) noise control are presented. A bibliography of publications from the Langley helicopter acoustics program for the past 10 years is included. |
| NASA分類 | ACOUSTICS |
| レポートNO | 88N16646 |
| 権利 | No Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/147397 |
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