形状記憶合金を用いた可逆的形状変化スマート構造の応用(J04-2 スマート構造,J04 折り紙・スマートストラクチャー)

概要

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This paper describes smart structure composed of Ti-Ni shape memory alloys (SMA) and elastic materials. SMA is one of the effective materials which posses actuator function for start structure. However, in the conventional application of SMA, its shape change is non-reversible. Under certain conditions, SMA can show two-way shape memory effect. But conventional two-way SMA is not used for smart structure because stability of the effect and strength of generated force is not sufficient. Composing SMA with elastic materials, the structures can response reversibly depending on temperature. In this paper, application of ring-shape type smart structure is mentioned. Analytical models of reversible shape change and generated forces are led and the validity of the models is shown by comparison with experimental results. Then a new protective garment system, with which the technology is put in practical use, is introduced.
社団法人日本機械学会の論文
2004-09-04