折り紙型接合子構造による多能性形状変形展開構造
Origami-based Zygote structure enables pluripotent shape-transforming deployable structure
均一なパネルを折り紙のように積層した「接合子構造」に接続経路をプログラムすることで、任意の3次元形状へと展開できるアルゴリズムを提案し、ばねヒンジと形状記憶合金ヒンジで実証した。
著者: Yu-Ki Lee, Yue Hao, Zhonghua Xi, Woongbae Kim, Youngmin Park, Kyu-Jin Cho, Jyh-Ming Lien, In-Suk Choi
分類: cs.CE, cs.RO
原文アブストラクト
We propose an algorithmic framework of a pluripotent structure evolving from a simple compact structure into diverse complex 3-D structures for designing the shape transformable, reconfigurable, and deployable structures and robots. Our algorithmic approach suggests a way of transforming a compact structure consisting of uniform building blocks into a large, desired 3-D shape. Analogous to the pluripotent stem cells that can grow into a preprogrammed shape according to coded information, which we call DNA, compactly stacked panels named the zygote structure can evolve into arbitrary 3-D structures by programming their connection path. Our stacking algorithm obtains this coded sequence by inversely stacking the voxelized surface of the desired structure into a tree. Applying the connection path obtained by the stacking algorithm, the compactly stacked panels named the zygote structure can be deployed into diverse large 3-D structures. We conceptually demonstrated our pluripotent evolving structure by energy releasing commercial spring hinges and thermally actuated shape memory alloy (SMA) hinges, respectively. We also show that the proposed concept enables the fabrication of large structures in a significantly smaller workspace.
