抄録
Origami structure has two major characteristics; light and rigid, foldable and deployable. And so, it is used effectively in industry. If we can fold empty cans and plastic bottles after drinking, it is possible to consider new industrialization, but it has not been put to practical use yet. Recently, Tachi-Miura 's Polyhedron is drawing attention as a three - dimensional version of Miura - Ori. On the other hand, Nojima regarded Tachi-Miura's Polyhedron as a type of paring origami, also developed a more compact, paring origami structure. It is called Nojima's Polyhedron. These can be folded in the vertical direction of the cylindrical shell as well as in the radial direction. The applicability of these two paring origami structures is examined in this paper. We studied the crushing and spring back characteristics of both structures, and explore their possibility. First, we studied about geometrical features of each Polyhedron and shows that the analysis models are made from 5 key nodes. After that we prepared some analysis models and made some analysis with LS-DYNA, software by finite element method. Then, we tried optimization analysis to minimize the crushing force of each Polyhedron structure and spring back analysis to examine the possibility of application to aluminum cans.
