张拉整体
超材料
消散
材料科学
联轴节(管道)
机械能
刚度
能量(信号处理)
工作(物理)
弹性能
对偶(序理论)
非线性系统
光电子学
机械系统
能量收集
平面的
软机器人
变形(气象学)
微电子机械系统
储能
机制(生物学)
储能
能量转换
电子工程
拓扑(电路)
计算机科学
材料设计
作者
Songyu Zhang,Meiling Zhang,Qi Wen,Keyu Li,Chaozong Liu,Jianwei Sun,Zhihui Zhang,Luquan Ren
摘要
ABSTRACT Mechanical metamaterials with programmable deformation, tunable energy dissipation, and reusable impact‐mitigation capability are highly desirable for adaptive protective systems and multifunctional mechanical devices. However, achieving stable compression–torsion coupling together with post‐fabrication programmability and recoverable energy dissipation remains challenging. Here, we develop a tensegrity‐inspired mechanical metamaterial based on the structural duality between Kresling origami and three‐strut tensegrity structure. Through discrete hole‐position switching, the metamaterial enables programmable configuration switching, stiffness regulation, and configuration‐dependent compression–torsion coupling within a single physical architecture. Within the investigated design space, the structural configuration strongly influences the accessible energy‐dissipation range, whereas elastic‐member stiffness regulates its magnitude. The three‐strut tensegrity unit cell exhibits recoverable deformation, stable cyclic response, and pronounced torsional output. Multicell assemblies further translate unit‐cell‐level programmability into collective deformation pathways, enabling staged deformation, graded energy dissipation, and chirality‐dependent Poisson's ratio responses. Dynamic impact experiments demonstrate reduced peak transmitted forces, suppressed rebound, and repeatable impact‐mitigation behavior at the unit‐cell level. This work establishes a programmable tensegrity‐inspired metamaterial platform for regulating nonlinear mechanical responses and provides a design strategy for adaptive impact mitigation, soft robotics, and reusable energy‐dissipating systems.
科研通智能强力驱动
Strongly Powered by AbleSci AI