Disclosed is a method for designing a reentry trajectory based on flight path angle planning, including the following steps: S1. extracting an actual operating parameter of an aircraft, setting a maximum dynamic pressure nmax a maximum stagnation point heat flux {dot over (Q)}max, and a maximum overload nmax according to a mission requirement, and solving for a velocity-height boundary of a reentry trajectory; S2. solving for a reentry trajectory in an initial descent stage according to differential equations of reentry motion, and setting up a flight-path-angle lower limit γmin(V) according to the reentry trajectory in the initial descent stage, the velocity-height boundary, and a target point in a velocity-height phase plane; and S3. planning, based on the flight-path-angle lower limit γmin(V), a flight path angle satisfying terminal constraints, and calculating a corresponding bank angle to obtain a reentry trajectory.
METHOD FOR DESIGNING REENTRY TRAJECTORY BASED ON FLIGHT PATH ANGLE PLANNING
2021-03-25
Patent
Elektronische Ressource
Englisch
IPC: | B64G Raumfahrt , COSMONAUTICS |
Method for designing reentry trajectory based on flight path angle planning
Europäisches Patentamt | 2022
|Reentry Trajectory Planning Based on Proximal Policy Optimization
Springer Verlag | 2024
|Heeling-angle-availability-based optimal planning method of reentry corridor
Europäisches Patentamt | 2015
|Skip reentry trajectory optimization based on analysis of path constraints
Online Contents | 2014
|