Tangential Thrust Control

Author: Tianjiang Shuo Website: https://cislunarspace.cn

Definition

A simplified control strategy that always aligns the thrust direction with the velocity vector. For circular orbits in a central gravitational field, tangential thrust is the most efficient way to increase orbital energy and semi-major axis in the shortest time. This strategy serves as a reliable approximation to the optimal escape program.

Application Value

In a linear quadratic optimal control framework, selecting appropriate weight matrices Q and R achieves a balance between tracking accuracy and control energy consumption, making it suitable for real-time control in cislunar orbit keeping.

References

• Du et al. 2024