2017 Fiscal Year Final Research Report
Deployment Control of Shape Memory Alloy Boom for Space Structures
| Project/Area Number |
15K18280
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Aerospace engineering
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| Research Institution | Muroran Institute of Technology |
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Principal Investigator |
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Keywords | スマートアクチュエータ / 宇宙用伸展ブーム / 形状記憶合金 / 形状記憶ポリマー |
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| Outline of Final Research Achievements |
This study aims to demonstrate the synchronous and stable deployment of a newly proposed boom system that consists of cables, a rotary damper, and shape memory alloy with a memorized convex tape shape. Through a shaft, a rotary damper is connected to a reel, and cables wound around the reel are connected to the shape memory alloy boom tips.The deployed part consists of bi-shape memory alloy convex tape booms. The boom is deployed using only the shape recovery force of the shape memory alloy. By installing cables and a rotary damper, the deployment behavior of each boom is controlled, and each boom is deployed synchronously owing to the resistance force of the damper to a leading deploy boom. Moreover, the structural stiffness control concept of the proposed shape memory alloy bi-convex tape boom is considered by combining shape memory polymer. The combined use of shape memory alloys and shape memory polymers control the bending stiffness, even if the boom temperature is change.
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| Free Research Field |
宇宙構造物工学
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