N-body, Single Gravity-Assist Trajectory Design - SNOPT

Versión 1.3.0 (17.5 MB) por David Eagle
Divide-and-conquer approach to solving a single gravity assist interplanetary trajectory subject to n-body perturbations
66 descargas
Actualizado 14 Aug 2022

Ver licencia

MATLAB script named nbody_flyby_snopt that can be used to design interplanetary n-body trajectories that include a single gravity assist maneuver. This script uses a patched-conic (zero sphere-of-influence, ZSOI) solution of the gravity-assist flyby problem as an initial guess for the n-body algorithm. The departure equations of motion include first-order Earth oblateness and point-mass gravity of the sun and moon. The n-body heliocentric equations of motion include the point-mass gravity of the first eight planets.
The n-body trajectory optimization algorithm allows the user to select a “targeting” option at the arrival planet from this list.
  • B-plane components (B dot T and B dot R)
  • orbital elements (periapsis radius and orbital inclination)
  • entry interface (flight path angle, altitude and inclination)
  • node/apse alignment (periapsis radius, ascending node and argument of periapsis)
The n-body simulation minimizes the scalar magnitude of an impulsive interplanetary trajectory correction maneuver (TCM) required to achieve these targets. This maneuver is performed at a user-defined delta time after the gravity-assist.

Citar como

David Eagle (2024). N-body, Single Gravity-Assist Trajectory Design - SNOPT (https://www.mathworks.com/matlabcentral/fileexchange/92523-n-body-single-gravity-assist-trajectory-design-snopt), MATLAB Central File Exchange. Recuperado .

Compatibilidad con la versión de MATLAB
Se creó con R2020b
Compatible con cualquier versión
Compatibilidad con las plataformas
Windows macOS Linux

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!
Versión Publicado Notas de la versión
1.3.0

Patched-conic bug fix.

1.2.0

Updated algorithms and user's manual. Flight path angle bug fix.

1.1.0

Version for SNOPT algorithm

1.0.0