Elementary wind tunnel test of rotor active control
| Autor: | Kondo, Natsuki, Suenaga, Hisashi, Shirai, Masataka, Saito, Shigeru, Akasaka, Takeshi, Tanabe, Yasutada |
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| Jazyk: | japonština |
| Rok vydání: | 2002 |
| Předmět: | |
| Zdroj: | 航空宇宙技術研究所特別資料: 平成14年度航空安全・環境適合技術研究研究交流会と研究報告会講演論文集 = Special Publication of National Aerospace Laboratory: Proceedings of the Information Exchange Meeting and the Research Meeting on Aviation Safety and Environmental Compatibility Technology Research FY2001. 55:93-96 |
| ISSN: | 1347-457X |
| Popis: | This paper shows the results of the elementary wind tunnel test of blade active control using a 1-bladed model rotor at the 2.5 m x 2.5 m multi-purpose wind tunnel in Kawada Industry. In this test, the effects of higher harmonic control (HHC) and active flap control (AFC) on rotor blade-vortex interaction (BVI) noise were investigated. The frequency of the control was 20 Hz (2/rev), and the amplitudes of HHC and AFC were +/- 2.0 deg and +/- 15.0 deg, respectively. The phase of control was changed at intervals of 45 deg. Two types of BVI were tested. The one is the parallel vortex interaction using the vortex generator upstream of a non-lifting rotor. The other is self-generated vortex interaction of a lifting rotor. As a result, the effects of BVI noise reduction were observed in the some cases. 資料番号: AA0045946010 レポート番号: NAL SP-55 |
| Databáze: | OpenAIRE |
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