arXiv:2511.01272cs.RO2025-11

用针织布复现折纸结构,实现可穿戴软体机器人的高柔性与稳定性。

Design and Fabrication of Origami-Inspired Knitted Fabrics for Soft Robotics

  • 将折纸图案转化为针织设计,通过编织与熔融纱线控制折叠方向。
  • 熔融纱线使边缘翘曲减少37%,并抑制面外变形,保持结构一致。
  • 适用于可穿戴机器人,适合柔性电子与智能服装研发者。

采用柔性材料和可变形结构的软体机器人在可穿戴设备中具有巨大潜力,但同时保持结构完整性和舒适性仍是重大挑战。本文提出一种结合折纸结构与针织面料材料可编程性及可穿戴性的新型设计与制造方法。通过编程编织模式与材料分布,将折纸图案转换为针织设计,在特定方向形成褶皱,同时利用热熔纱线在柔性折痕周围构建刚性面板,抑制非预期屈曲和弯曲。实验量化了折叠力矩,结果表明编织模式增强折叠方向性,热熔纱线(1)通过减少边缘卷曲保持几何一致性,(2)通过强化面板防止面外变形。成功复现了复杂折纸图案,包括Miura-ori、Yoshimura和Kresling结构,并展示了一款可动的针织凯莱洛循环机器人。该方法融合结构可重构性、材料可编程性与制造可扩展性,凸显针织折纸在下一代可穿戴机器人中的前景。

原文摘要 · Abstract (English)

Soft robots employing compliant materials and deformable structures offer great potential for wearable devices that are comfortable and safe for human interaction. However, achieving both structural integrity and compliance for comfort remains a significant challenge. In this study, we present a novel fabrication and design method that combines the advantages of origami structures with the material programmability and wearability of knitted fabrics. We introduce a general design method that translates origami patterns into knit designs by programming both stitch and material patterns. The method creates folds in preferred directions while suppressing unintended buckling and bending by selectively incorporating heat fusible yarn to create rigid panels around compliant creases. We experimentally quantify folding moments and show that stitch patterning enhances folding directionality while the heat fusible yarn (1) keeps geometry consistent by reducing edge curl and (2) prevents out-of-plane deformations by stiffening panels. We demonstrate the framework through the successful reproduction of complex origami tessellations, including Miura-ori, Yoshimura, and Kresling patterns, and present a wearable knitted Kaleidocycle robot capable of locomotion. The combination of structural reconfigurability, material programmability, and potential for manufacturing scalability highlights knitted origami as a promising platform for next-generation wearable robotics.

软体机器人针织材料折纸结构可穿戴

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