NEAR-MINIMUM-TIME 3-DIMENSIONAL MANEUVERS OF RIGID AND FLEXIBLE SPACECRAFT Conference Paper uri icon

abstract

  • An approach is presented to accomplish large angle, nonlinear, three dimensional attitude maneuvers in either near-minimum-time or near-minimum-fuel. The method permits the specification of a torque shaped reference maneuver of the near-minimum-time (bang-bang) or near-minimum-fuel (bang-off-bang) type; the instantaneous switches are replaced by controllably sharp spline switches to reduce excitation of flexible degrees of freedom. A Lyapunov method is used to design tracking-type control perturbations to suppress errors due to disturbances and model errors. The method is illustrated by numerical simulations and some experimental results using the ASTREX test article.

author list (cited authors)

  • BELL, M. J., & JUNKINS, J. L.

publication date

  • December 1994