Conceptual Design of an “Umbrella” Spacecraft for Orbital Debris Shielding

Current protection techniques leave spacecraft vulnerable to objects between approximately 1 and 10 cm. This paper summarizes the conceptual design of a space vehicle with the objective of shielding spacecraft from objects in this range of sizes, which was made to study the feasibility of such a method for spacecraft protection. The design was divided into three stages: first, using SPH simulations, a multi-layer shield capable of defeating large projectiles was designed; next, a deployment mechanism that allowed the shield to be stored compactly for launch was designed and analyzed using a vector-based kinematics and dynamics method; finally, a general design of the service module was made. The final design has feasible dimensions for a spacecraft to be placed in Low Earth Orbit (LEO) and consists of an eight-layer shield with an umbrella-inspired deployment mechanism.