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titleSimultaneous shape and flight trajectory optimization of a spaceplane using parallel optimization method
Other TitleSimultaneous shape and flight trajectory optimization of a spaceplane using parallel optimization method
Author(jpn)鈴木 真二; 土屋 武司
Author(eng)Suzuki, Shinji; Tsuchiya, Takeshi
Author Affiliation(jpn)東京大学 大学院工学系研究科; 東京大学 大学院工学系研究科
Author Affiliation(eng)University of Tokyo Graduate School of Engineering; University of Tokyo Graduate School of Engineering
Issue Date2007-03-30
PublisherJapan Aerospace Exploration Agency (JAXA)
宇宙航空研究開発機構
Publication titleProceedings of International Workshops on Numerical Simulation Technology for Design of Next Generation Supersonic Civil Transport (SST-CFD Workshop)
Proceedings of International Workshops on Numerical Simulation Technology for Design of Next Generation Supersonic Civil Transport (SST-CFD Workshop)
Start page349
End page352
Publication date2007-03-30
Languageeng
AbstractThis paper presents a parallel optimization method to solve large-scale optimization problems and apply the method to the simultaneous vehicle design and flight trajectory optimization problems of a spaceplane. Generally, to obtain an accurate optimal solution, a large-scale problem has to be solved, and it takes much computing load and time. Therefore, the new method divides the problem into several sub-problems which can be solved in parallel. In the first half of the paper, we describe the way to decompose the problem and the fundamental algorithm to solve it. We introduce the conjunctive constraints among the sub-problems and define Lagrange multipliers for each conjunctive constrain. Each sub-problem can be solved in a parallel manner by updating both the Lagrange multipliers and design variables. In the latter half of the paper, the parallel optimization method is applied to obtain the optimal shape and optimal flight trajectory of a spaceplane.
DescriptionJAXA Special Publication
宇宙航空研究開発機構特別資料
Keywordsspace plane; aircraft design; flight optimization; optimization; design optimization; ascent trajectory; structural design; algorithm; multidisciplinary design optimization; スペースプレーン; 航空機設計; 飛行最適化; 最適化; 設計最適化; 上昇飛跡; 構造設計; アルゴリズム; 複合領域設計最適化
Document TypeConference Paper
JAXA Category特別資料
ISSN1349-113X
SHI-NOAA0063609040
Report NoJAXA-SP-06-029E
URIhttps://repository.exst.jaxa.jp/dspace/handle/a-is/27258


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