Unprecedented properties and advanced functionalities enabled by origami-based architected materials has been demonstrated at various length scales, but most prototypes only showed single mode deformation and required external fields to trigger the reconfiguration. Here, we demonstrate a simple yet robust design strategy to program modular origami-inspired cells to achieve multi-phase adaptive behavior under flow. Guided by physical tests and numerical simulations, we qualitatively proved that our small-scale origami-inspired weirs are able to show a diverse adaptive behavior under hydrodynamic force without human input. With a specific flow-regulating target, the adaptive behavior of the proposed cellular structure can be tailored by varying the geometry and density of a baseline cell, spatial layout among cells, hinge properties and arrangements, and different boundary conditions. Governed primarily by the geometric design, the proven adaptability could be achieved at various length scales and could be integrated into diverse reconfigurable systems and devices for flow regulation and management.

基于折纸的建筑材料具有前所未有的性能和先进的功能，已在各种长度尺度上得到了证明，但是大多数原型仅显示出单模变形，并需要外部场来触发重新配置。在这里，我们展示了一种简单而强大的设计策略，可以对折纸启发的单元进行编程，以实现流动下的多相自适应行为。在物理测试和数值模拟的指导下，我们定性地证明了我们的小巧的折纸风格堰在没有人工输入的情况下能够在水力作用下表现出多种适应性行为。使用特定的流量调节目标，可以通过更改基准单元的几何形状和密度，单元之间的空间布局，铰链特性和布置，来调整建议的单元结构的自适应行为，和不同的边界条件 主要受几何设计支配，可以在各种长度尺度上实现已证明的适应性，并且可以将其集成到各种可重新配置的系统和设备中以进行流量调节和管理。