Ejection Mechanism Design for Space-net-based Active Debris Removal

This paper presents an ejector for active debris removal using a space net. A non-explosive space-net ejection mechanism based on a spring’s elastic restoration force was developed. Through a literature review, the key parameters for the ejection mechanism were defined. Then, a spring design that satisfies these parameters was developed and verified through numerical simulations. Based on the designed spring, a three-dimensional configuration of a single space-net ejector was developed. Structural analysis was conducted under static and dynamic conditions to investigate the relevancy of the design, accounting for the spring’s elastic restoration force and launch environment. Finally, the ejector was fabricated, and the hold down and release mechanism was validated.