An Siqi, Li Xiaowen, Guo Zengrong, Huang Yi, Zhang Yanlin, Jiang Hanqing
School of Engineering, Westlake University, Hangzhou, Zhejiang, 310030, China.
Westlake Institute for Advanced Study, Hangzhou, Zhejiang, 310024, China.
Nat Commun. 2024 Aug 26;15(1):7340. doi: 10.1038/s41467-024-51865-x.
Inspired by the natural shape-morphing abilities of biological organisms, we introduce a strategy for creating energy-efficient dynamic 3D metasurfaces through spatiotemporal jamming of interleaved assemblies. Our approach, diverging from traditional shape-morphing techniques reliant on continuous energy inputs, utilizes strategically jammed, paper-based interleaved assemblies. By rapidly altering their stiffness at various spatial points and temporal phases during the relaxation of the soft substrate through jamming, we enable the formation of refreshable, intricate 3D shapes with a desirable load-bearing capability. This process, which does not require ongoing energy consumption, ensures energy-efficient and lasting shape displays. Our theoretical model, linking buckling deformation to residual pre-strain, underpins the inverse design process for an array of interleaved assemblies, facilitating the creation of diverse 3D configurations. This metasurface holds notable potential for tactile displays, particularly for the visually impaired, heralding possibilities in visual impaired education, haptic feedback, and virtual/augmented reality applications.
受生物有机体自然形状变形能力的启发，我们引入了一种策略，通过交错组件的时空干扰来创建节能动态3D超表面。我们的方法与依赖持续能量输入的传统形状变形技术不同，它利用策略性干扰的纸质交错组件。通过在软基板松弛过程中，在不同空间点和时间阶段快速改变其刚度，我们能够形成具有理想承载能力的可刷新复杂3D形状。这个过程不需要持续的能量消耗，确保了节能且持久的形状显示。我们将屈曲变形与残余预应变联系起来的理论模型，为交错组件阵列的逆向设计过程提供了支撑，有助于创建各种3D构型。这种超表面在触觉显示方面具有显著潜力，特别是对于视障人士，在视障教育、触觉反馈以及虚拟/增强现实应用中预示着诸多可能性。
