Variable stiffness of multi-teeth mechanical metamaterials

To address the growing demands for high-performance, multifunctional, and dynamically adaptive systems, variable stiffness structures have emerged as a transformative design paradigm. In this paper, a groundbreaking multi-teeth (MT) mechanical metamaterial (MM) is proposed, providing excellent tunable stiffness properties and rich stiffness variations. It could achieve precise stiffness decoupling and control through rotational modulation, allowing transitions from extremely flexible to rigid states. The MT-MM's unique architecture offers transformative potential for applications in flexible robotic joints, adaptive aircraft landing gears, etc., offering a brand new solution and reference for researchers in the field of variable stiffness.