Biomimetic Cartilage Design for Low-Friction Robotic Joints Mimicking Human Joint Lubrication

This study proposes a mechanism to mimic the fluid-exuding function of human cartilage and create a versatile, 3D-printable cartilage sheet for use in open-type ball joints of biomimetic robots. The fabricated cartilage sheet demonstrates low-friction properties through fluid exudation under load, enabling the construction of biomimetic open-type ball joints.