JAXA Repository / AIREX 未来へ続く、宙(そら)への英知
47708000.pdf3.38 MB
Other TitleInvestigation on flight experiment planning for high speed flight demonstration phase 2
Author(jpn)鈴木 広一; 匂坂 雅一
Author(eng)Suzuki, Hirokazu; Sagisaka, Masakazu
Author Affiliation(jpn)宇宙航空研究開発機構 総合技術研究本部; 宇宙航空研究開発機構 経営企画部
Author Affiliation(eng)Japan Aerospace Exploration Agency Institute of Space Technology and Aeronautics; Japan Aerospace Exploration Agency Strategic Planning and Management Department
Issue Date2004-10-25
PublisherJapan Aerospace Exploration Agency (JAXA)
Publication date2004-10-25
AbstractA high-speed flight demonstration (HSFD) phase 2 program using a scale vehicle is planned as a way of reducing the uncertainties in the HOPE-X aerodynamic database. This paper investigates flight planning for the HSFD vehicle, applying technical considerations to the selection of a launch method. An air-launch method and a balloon drop method are examined. A guidance law was designed for each launch method and flight simulations were performed. These investigations made it clear that although the air-launch method can produce the required flight experiment under ideal conditions, the method breaks down in certain cases, such as departures from nominal separation or thrust performance. On the other hand, the balloon-drop method satisfies the requirements of the flight experiment in all cases, including likely variations from the ideal. This paper concludes that the proper launch method for the phase 2 demonstration vehicle is the balloon drop.
DescriptionJAXA Research and Development Report
Keywordsaerodynamic characteristic; flight demonstration; guidance law; air-launch method; balloon-drop method; flight test; wind tunnel test; computational fluid dynamics; 空力特性; 飛行実証; 誘導則; 空中発進法; バルーンドロップ法; 飛行試験; 風洞試験; 計算流体力学
Document TypeTechnical Report
JAXA Category研究開発報告
Report NoJAXA-RR-04-009

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