Thrust Homotopy

Author: Tianjiang Shuo

Website: https://cislunarspace.cn

Definition

A homotopy continuation method that uses thrust amplitude as the homotopy parameter, starting from a known high-thrust solution and gradually reducing thrust to the target value. By constructing homotopy paths, it maintains the transfer trajectory structure during thrust reduction, overcoming the challenge of small convergence domains in low-thrust scenarios.

Application Value

In orbital design, analysis, and control, dynamics models are used to predict spacecraft trajectories, with equations of motion solved numerically or analytically. This concept underpins critical mission capabilities including orbital maneuver design, orbit improvement, and formation flying.

References

  • Du et al. 2024
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Contributors: ouyangjiahong, Ou Yang Jiahong