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titleリフティングボディ飛行実験(LIFLEX)誘導制御系: システム評価と飛行制御パラメタ最適化
Other TitleGuidance and Control System for Lifting-Body Flight Experiment: System Evaluation and Flight Control Parameter Optimization
Author(jpn)元田, 敏和; 塚本, 太郎; 南, 吉紀; 濱田, 吉郎
Author(eng)Motoda, Toshikazu; Tsukamoto, Taro; Minami, Yoshinori; Hamada, Yoshiro
Author Affiliation(jpn)宇宙航空研究開発機構研究開発本部飛行技術研究センター; 宇宙航空研究開発機構宇宙輸送系システム技術研究開発センター; 宇宙航空研究開発機構宇宙輸送系システム技術研究開発センター; 宇宙航空研究開発機構研究開発本部飛行技術研究センター
Author Affiliation(eng)Flight Research Center, Aerospace Research and Development Directorate, Japan Aerospace Exploration Agency (JAXA); Space Transportation System Research and Development Center, Japan Aerospace Exploration Agency (JAXA); Space Transportation System Research and Development Center, Japan Aerospace Exploration Agency (JAXA); Flight Research Center, Aerospace Research and Development Directorate, Japan Aerospace Exploration Agency (JAXA)
Issue Date2010-11-30
PublisherJapan Aerospace Exploration Agency (JAXA)
Publication titleJAXA reseach and development report
Publication date2010-11-30
AbstractThe lifting-body shaped vehicle has been studied as the candidate for a future re-entry vehicle. Because of a wingless structure, there are several advantages, such as structural stiffness against atmospheric heating, greater payload capacity, and suitable shape stored in a rocket fairing. Furthermore, since it flies utilizing aerodynamic force, the vehicle motion can be controlled more flexible compared to a capsule-type re-entry vehicle. However, the controllability is inferior to a normal aircraft and flight control becomes difficult at low air speed because of a low lift-drag ratio. Especially in approach and landing phase, accurate flight control is required while the air speed is quite low. To establish landing technology for a lifting-body flight vehicle, LIfting-body FLight EXperiment (LIFLEX) had been planned. In this experiment, the key technology to be developed is a flight control system. The experimental vehicle has to meet given specifications and land on a run-way against various uncertain conditions such as environmental uncertainties and vehicle model errors which are expected to exist in the real world. This paper describes an overview of the control system design for LIFLEX, and system evaluation by a numerical flight simulation. First, the system performance and robustness is evaluated incorporating those uncertain parameters. Then, the control design parameters with the non-linear system are directly optimized to maximize a probability of mission achievement. Finally, uncertain parameters, which are inherent for the LIFLEX vehicle, are revised for more general flight system, and the revised system is evaluated to confirm its robustness as additional information for the development of a future re-entry vehicle.
DescriptionOriginal contains color illustrations
形態: カラー図版あり
KeywordsMonte Carlo simulation; Parameter Optimization; Robust Control; Lifting Body; Automatic Landing
Document TypeTechnical Report
JAXA Category研究開発報告
Report NoJAXA-RR-10-007

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