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Self-folding smart structure inspired by nature's heliotropism

机译:受自然日光作用启发的自折叠智能结构

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摘要

Various plants are capable of comparably fast movements due to so called motor cells able of changing their internal pressure causing the flower head to rotate towards the sun. This principle, known as heliotropism, can be adapted by assembling an array of inflatable cells with highly flexible walls interconnected by micro pumps and valves to facilitate a pressure change between cells. Due to this internal pressure change, the volume of specific cells will vary causing the structure to deform and bend. By producing an array of a few cells thick but hundreds of cells long and wide, a plate that is able to change its shape can be created. The idea presented in this paper is to combine the folding capability of the developed smart plate with the origami principle of creating complex shapes from a single sheet of material without the need of irreversible cutting.
机译:由于所谓的运动细胞能够改变其内部压力,使植物的花冠朝着太阳旋转,因此各种植物能够以相对快的速度运动。可以通过将可充气单元的阵列与高度柔性的壁组装在一起来适应这种原理,该阵列具有高度柔性的壁,该壁通过微型泵和阀相互连接,以促进单元之间的压力变化。由于这种内部压力变化,特定单元的体积将发生变化,从而导致结构变形和弯曲。通过产生几格厚但长和宽几百个细胞的阵列,可以创建能够改变其形状的板。本文提出的想法是将开发的智能板的折叠能力与折纸原理相结合,该折纸原理是从单张材料中创建复杂形状而无需进行不可逆切割。

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