arXiv:2505.09919cs.ROcs.SY2025-05被引 4

微调经典折纸图案,实现可自锁展开的智能机器人结构

Hyper Yoshimura: How a slight tweak on a classical folding pattern unleashes meta-stability for deployable robots

  • 通过打破传统折纸设计规则,实现多种稳定形态
  • 可自锁展开与非对称弹出,支持复杂3D形状部署
  • 适合太空探测、应急救援等需要快速展开的场景

受折纸启发的可展结构为机器人与建筑应用提供了轻量化、紧凑且可重构的解决方案。然而,如何在高折叠效率、简单展开和精确形变至多种承重构型之间取得平衡仍是重大挑战。本研究提出一种新型超-吉村折纸结构,具备广泛的运动学可行态和局部亚稳态,包括新发现的对称‘自折叠’和非对称‘弹出’状态。该亚稳态通过打破数十年沿用的吉村折纸设计规则实现,并推导出一套严格的数学设计规则与几何公式。基于此,开发了正向与逆向运动学策略,将超-吉村模块堆叠成可逼近复杂3D形状的可展桁架。最后,展示了其在校园公交站部署的米级弹出式手机充电站,以及3D打印的可缩放空间起重机原型,可作为物体抓取器、太阳能追踪装置或高承载结构使用。这些成果确立了超-吉村折纸在地面与太空环境中可展适应型机器人的应用潜力。

原文摘要 · Abstract (English)

Deployable structures inspired by origami have provided lightweight, compact, and reconfigurable solutions for various robotic and architectural applications. However, creating an integrated structural system that can effectively balance the competing requirements of high packing efficiency, simple deployment, and precise morphing into multiple load-bearing configurations remains a significant challenge. This study introduces a new class of hyper-Yoshimura origami, which exhibits a wide range of kinematically admissible and locally metastable states, including newly discovered symmetric "self-packing" and asymmetric "pop-out" states. This metastability is achieved by breaking a design rule of Yoshimura origami that has been in place for many decades. To this end, this study derives a new set of mathematically rigorous design rules and geometric formulations. Based on this, forward and inverse kinematic strategies are developed to stack hyper-Yoshimura modules into deployable booms that can approximate complex 3D shapes. Finally, this study showcases the potential of hyper-Yoshimura with a meter-scale pop-up cellphone charging station deployed at our university's bus transit station, along with a 3D-printed, scaled prototype of a space crane that can function as an object manipulator, solar tracking device, or high-load-bearing structure. These results establish hyper-Yoshimura as a promising platform for deployable and adaptable robotic systems in both terrestrial and space environments.

折纸机器人可展结构亚稳态

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