Threedimensional gconstrained shuttle boost trajectory optimization using a minH/secant hybrid algorithm
Abstract
A hybrid method is used to optimize multistage shuttletype boost trajectories. A minH steepestascent algorithm is used to make initial iterations, and then multipliers from a reasonably converged solution are used to initiate a secant method which satisfies all necessary conditions of the calculus of variations. Both programs model the earth as an oblate rotating spheroid, and aerodynamic axial force and normal force are assumed to be functions of angle of attack and Mach number.
 Publication:

AIAA Conference on the Exploration of the Outer Planets
 Pub Date:
 July 1975
 Bibcode:
 1975aiaa.confU....G
 Keywords:

 Gravitational Effects;
 Space Shuttles;
 Spacecraft Trajectories;
 Steepest Descent Method;
 Trajectory Optimization;
 Aerodynamic Forces;
 Algorithms;
 Angle Of Attack;
 Calculus Of Variations;
 Computer Programs;
 Mach Number;
 Multistage Rocket Vehicles;
 Astrodynamics