Xiangjing Ji

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About

Xiangjing Ji’s research focuses on the intersection of bionic engineering, human-robot interaction, and lower extremity exoskeleton design. Ji is best known for pioneering work on improving human-machine compliance in wearable robotic systems, particularly through innovative mechanical solutions for joint articulation. In their most cited paper, "Bionic Knee Joint Structure and Motion Analysis of a Lower Extremity Exoskeleton" (2020, 9 citations), Ji addresses a critical challenge in exoskeleton technology—the poor biomechanical alignment between rigid robotic frames and the human body’s natural movement. By proposing a modified exoskeleton featuring a four-bar linkage mechanism in the knee joint, Ji demonstrates how this design outperforms traditional two-bar hinges in replicating physiological motion, reducing joint torque conflicts and enhancing user comfort. This contribution is foundational for advancing rehabilitation robotics and assistive devices for mobility-impaired individuals. Ji’s work bridges theoretical kinematics and practical engineering, offering a scalable solution for next-generation exoskeletons. With growing interest in wearable robotics, Ji’s insights into bionic joint mechanics continue to influence both academic research and industrial applications in human augmentation.