2021 Fiscal Year Final Research Report
Vector-Strain Transformation for Control and Analysis of Next-Generation Deployable Structures
| Project/Area Number |
20K22378
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| Research Category |
Grant-in-Aid for Research Activity Start-up
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| Allocation Type | Multi-year Fund |
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| Review Section |
0301:Mechanics of materials, production engineering, design engineering, fluid engineering, thermal engineering, mechanical dynamics, robotics, aerospace engineering, marine and maritime engineering, and related fields
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| Research Institution | Tohoku University |
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Principal Investigator |
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| Project Period (FY) |
2020-09-11 – 2022-03-31
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| Keywords | 柔軟展開構造物 / 流体構造連成 / 空力弾性 / 非線形有限要素法 / マルチボディダイナミクス / マルチフィジックス / 風洞実験 / 制御 |
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| Outline of Final Research Achievements |
With the increasing demand for telecommunication, renewable energy, and disaster monitoring, high-altitude platform station with deployable wings, large wind turbines, and space robot arms are expected to be developed. To develop these next-generation structures, which have slender bodies with nearly 100 meters and undergo large deformation, deformation and deployment control using a numerical model is necessary. The model should be based on variables that can be measured in actual operation for the purpose of control. In this research, we proposed an innovative modeling method based on strain variables, which are easy to measure in actual operation even when large deformation occurs. The analysis performance of the proposed model was demonstrated through a large wind tunnel experiment at the Institute of Fluid Science, Tohoku University.
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| Free Research Field |
航空宇宙工学
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| Academic Significance and Societal Importance of the Research Achievements |
「歪」を変数とするモデリング法をジョイントを有する展開構造に適用できるように拡張した点が本研究の特筆すべき学術的意義である．ジョイントは「ベクトル」変数で表現されることが一般的であり，これまで「歪」では表現できなかったからである．多様な細長展開構造物の大変形解析・大変形制御を一気通貫して実施でき，航空機・浮体式洋上風車・宇宙アームなど次世代構造の実現に貢献できることが社会的意義である．
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