Yujun Chen

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About

Yujun Chen is a leading researcher in space robotics and orbital debris mitigation, with a focus on the dynamics and control of non-cooperative tumbling targets. His work addresses one of the most pressing challenges in active debris removal: safely capturing and stabilizing fast-spinning space debris. In his highly cited 2020 paper (35 citations), Chen developed an optimal contact control strategy for debris detumbling and nutation damping, providing a rigorous framework for reducing rotational energy through controlled robotic interactions. His 2019 study (12 citations) introduced a novel detumbling strategy using a dual-arm space robot with finger-type end effectors, establishing a complete multipoint contact dynamics model for fast-tumbling targets. This work is critical for ensuring operational safety during capture missions. Chen’s research bridges advanced multibody dynamics, contact mechanics, and real-time control, offering practical solutions for future on-orbit servicing and debris removal missions. His contributions are foundational for engineers designing autonomous robotic systems capable of handling the most hazardous objects in orbit.