Trajectory Design Leveraging Low-Thrust, Multi-Body Equilibria and Their Manifolds

Cox, Andrew ; Howell, Kathleen C ; Folta, David C

关键词: SPACECRAFT TRAJECTORIES;    TRAJECTORY OPTIMIZATION;    LOW THRUST;    EQUILIBRIUM EQUATIONS;    DIRECTIONAL CONTROL;    VECTOR ANALYSIS;    MANIFOLDS;    DYNAMIC MODELS;    THREE BODY PROBLEM;    EQUATIONS OF MOTION;   

RP-ID  :  GSFC-E-DAA-TN59610

学科分类：天文学(综合)

美国|英语

来源: NASA Technical Reports Server

【 摘 要 】

A key challenge in low-thrust trajectory design is generating preliminary solutions that simultaneously specify the spacecraft position and velocity vectors, as well as the thrust history. To mitigate this difficulty, dynamical structures within a combined low-thrust circular restricted 3-body problem (CR3BP) are investigated as candidate solutions to seed initial low-thrust trajectory designs. The addition of low-thrust to the CR3BP modifies the locations and stability of the equilibria, offering novel geometries for mission applications. Transfers between these novel equilibria are constructed by leveraging the associated stable and unstable manifolds and insights from the low-thrust CR3BP.