论文标题

叶状折纸,具有自适应抓握动作的双重性

Leaf-like Origami with Bistability for Self-Adaptive Grasping Motions

论文作者

Yasuda, Hiromi, Johnson, Kyle, Arroyos, Vicente, Yamaguchi, Koshiro, Raney, Jordan R., Yang, Jinkyu

论文摘要

叶状折纸结构的灵感来自自然界中发现的几何图案,在开放形状和封闭形状之间表现出独特的过渡。借助Bistable能量景观,类似叶子的折纸能够复制在金星蝇类(如Venus Flytrap)中观察到的物体的自主抓握。我们显示出叶状折纸的均匀抓握运动,以及各种源于其多转化性质产生的非均匀抓握运动。由于结构的双态能量景观,可以用高可调节性触发抓握动作。我们通过将目标对象放在我们的纸张原型上来证明自适应抓握运动,这不需要外部电源来保留对象的捕获。我们还通过选择性控制折痕来探索类似叶子的结构的不均匀抓握动作,从而揭示了可以利用的各种独特的握把配置,这些配置可用于多功能,自主和自适应的机器人操作。

The leaf-like origami structure was inspired by geometric patterns found in nature, exhibiting unique transitions between open and closed shapes. With a bistable energy landscape, leaf-like origami is able to replicate the autonomous grasping of objects observed in biological systems like the Venus flytrap. We show uniform grasping motions of the leaf-like origami, as well as various non-uniform grasping motions which arise from its multi-transformable nature. Grasping motions can be triggered with high tunability due to the structure's bistable energy landscape. We demonstrate the self-adaptive grasping motion by dropping a target object onto our paper prototype, which does not require an external power source to retain the capture of the object. We also explore the non-uniform grasping motions of the leaf-like structure by selectively controlling the creases, which reveals various unique grasping configurations that can be exploited for versatile, autonomous, and self-adaptive robotic operations.

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