Deployment behavior control using cables and bi-shape memory alloy convex tape booms
Deployment behavior control using cables and bi-shape memory alloy convex tape booms
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DOI：
10.1177/1687814017707909
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发表时间：
2017-07
影响因子：
2.1
通讯作者：
Nobuhisa Katsumata;Masaru Kume;K. Higuchi
中科院分区：
文献类型：
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作者：
Nobuhisa Katsumata;Masaru Kume;K. Higuchi
本研究旨在演示一种新提出的臂架系统的同步和稳定展开，该系统由缆索、旋转阻尼器和具有记忆凸带形状的形状记忆合金组成。旋转阻尼器通过轴连接到卷轴上，绕在卷轴上的电缆连接到形状记忆合金臂尖。展开部分由双形状记忆合金凸带吊杆组成，其中两个形状记忆合金凸带组合成凸透镜横截面，双形状记忆合金凸带的外部用片状加热器和聚酰亚胺薄膜包裹。仅使用形状记忆合金的形状恢复力来展开臂架。通过安装缆索和旋转阻尼器，控制每个吊杆的展开行为，并由于阻尼器对领先展开吊杆的阻力，使每个吊杆同步展开。此外，还讨论了形状记忆合金双凸带臂架的结构刚度控制概念，考虑到马氏体相的杨氏模数几乎减半。
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 in which two shape memory alloy convex tapes are combined to form a convex lens cross section, and the outside of the bi-shape memory alloy convex tape is wrapped by a sheet-type heater and polyimide film. 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 discussed considering that Young’s modulus becomes almost half in the martensitic phase.