Controllability Analysis of Spacecraft with Only Attitude Actuation Near Small Solar System Bodies

Sasi P. Viswanathan, Amit Sanyal, Gaurav Misra

Research output: Contribution to journalArticle

Abstract

This paper investigates the nonlinear controllability of the translational and rotational motion of an under actuated spacecraft near small Solar System bodies (asteroids and comets) using attitude actuation only The coupled dynamics of the spacecraft and small body is analyzed in the framework of the full two body problem, with the coupling provided by their mutual gravity Due to the symmetry in their mutual gravity the problem of analyzing the dynamics of the spacecraft is obtained by reducing it to that of a single body (the spacecraft) under the gravitational interaction provided by the spacecraft-small body pair. It has been previously shown that the rotational (attitude) dynamics of the spacecraft is strongly coupled with its translational (orbital) dynamics in this weak-gravity environment. For spacecraft missions to small bodies, this coupling can be used to obtain controlled trajectories within a bounded neighborhood of the small body using only attitude control, as the analysis here shows. Prior to designing guidance and control schemes for such spacecraft missions, it is important to show the controllability of the spacecraft dynamics on the 12-dimensional state space, i.e., the tangent bundle TSE(3), with only attitude control. Sufficient conditions for controllability are shown using the Lie Algebra Rank condition (LARC), and the weakly positively Poisson stable (WPPS) property of the drift vector field under certain initial conditions.

Original languageEnglish (US)
Pages (from-to)648-653
Number of pages6
JournalIFAC-PapersOnLine
Volume49
Issue number18
DOIs
StatePublished - Jan 1 2016

Fingerprint

Solar system
Controllability
Spacecraft
Gravitation
Attitude control
Asteroids
Electronic guidance systems
Algebra
Trajectories

Keywords

  • Controllability
  • Full two-body problem
  • Geometric control
  • Under actuated spacecraft

ASJC Scopus subject areas

  • Control and Systems Engineering

Cite this

Controllability Analysis of Spacecraft with Only Attitude Actuation Near Small Solar System Bodies. / Viswanathan, Sasi P.; Sanyal, Amit; Misra, Gaurav.

In: IFAC-PapersOnLine, Vol. 49, No. 18, 01.01.2016, p. 648-653.

Research output: Contribution to journalArticle

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