2022 Fiscal Year Final Research Report
Functionalization of tensegrity network structures based on stress relaxation and redundancy of cables
| Project/Area Number |
19K21921
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| Research Category |
Grant-in-Aid for Challenging Research (Exploratory)
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| Allocation Type | Multi-year Fund |
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| Review Section |
Medium-sized Section 18:Mechanics of materials, production engineering, design engineering, and related fields
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| Research Institution | Osaka University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
LEI XIAOWEN 福井大学, 学術研究院工学系部門, 准教授 (50726148)
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| Project Period (FY) |
2019-06-28 – 2023-03-31
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| Keywords | 変形体力学 / メタマテリアル / ひずみエネルギー / マルチスケール解析 / インテリジェント構造 / 知能・機能創成工学 |
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| Outline of Final Research Achievements |
In order to positively evaluate the positive significance of the "play" (looseness in constraint, also called backlash, clearance, etc.) of the mechanism in relation to the dispersion of structural system forces and the safety and security, we consider a broadly defined tensegrity network structure that consists of cables (wires) and rigid members. We have introduced stress-relaxation into a part of the cable, and have clarified change the mechanical properties. Furthermore, a code for analyzing the equation of motion for the Nankin Tamasudare in a two-dimensional plane has been developed and simulated. From the analysis, we found knowledge that leads to the possibility of creating artifacts that positively incorporate "play".
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| Free Research Field |
工学
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| Academic Significance and Societal Importance of the Research Achievements |
平常時に冗長・無駄である（と思われている）眠れる自由度が、想定外の外的要因に対して知的に振舞う潜在的能力を持つことを明らかにする挑戦的研究で、基礎的成果を得ることができました。冗長性・無駄は生命体では進化の過程で育まれていますが、人工物も含めその積極的意味を再確認することで理工学、生命科学にとどまらず、人文学の諸分野へのインパクトや学術的意義も明確になると考えます。また例えばナノメートルスケールで〈あそび〉を有する材料組織の特性理解から、都市空間の交通渋滞の緩和などの日常的問題に至るまで、広く本質的アナロジー（類似性）を探れば、広い学術的分野の裾野をカバーする社会的意義が見いだせると考えます。
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