2025-06-12 オランダ・デルフト工科大学（TUDelft）
＜関連情報＞
- https://www.tudelft.nl/en/2025/me/news/origami-engineering-how-four-folds-unlock-multi-directional-locomotion
- https://advanced.onlinelibrary.wiley.com/doi/10.1002/adma.202502293?af=R
折り紙クローラー：複雑な経路ナビゲーションのための単一折り紙頂点の探索 Origami Crawlers: Exploring A Single Origami Vertex for Complex Path Navigation
Davood Farhadi, Laura Pernigoni, David Melancon, Katia Bertoldi
Advanced Materials Published: 10 June 2025
DOI:https://doi.org/10.1002/adma.202502293
Abstract
The ancient art of origami, traditionally used to transform simple sheets into intricate objects, also holds potential for diverse engineering applications, such as shape morphing and robotics. In this study, it is demonstrated that one of the most basic origami structures–a rigid, foldable degree-four vertex–can be engineered to create a crawler capable of navigating complex paths using only a single input. Through a combination of experimental studies and modeling, it is shown that modifying the geometry of a degree-four vertex enables sheets to move either in a straight line or turn. Furthermore, it is illustrated that leveraging the nonlinearities in folding allows the design of crawlers that can switch between moving straight and turning. Remarkably, these crawling modes can be controlled by adjusting the range of the folding angle’s actuation. This study opens avenues for simple machines that can follow intricate trajectories with minimal actuation.
