The Serret-Andoyer formalism in rigid-body dynamics: II. Geometry, stabilization, and control

Details The Serret-Andoyer formalism in rigid-body dynamics: II. Geometry, stabilization, and control The Serret-Andoyer formalism in rigid-body dynamics: II. Geometry, stabilization, and control

Aug 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007rcd....12..426b&link_type=abstract

Regular and Chaotic Dynamics, Volume 12, Issue 4, pp.426-447

Nonlinear Sciences

Chaotic Dynamics

3

Scientific paper

This paper continues the review of the Serret-Andoyer (SA) canonical formalism in rigid-body dynamics, commenced by [1], and presents some new result. We discuss the applications of the SA formalism to control theory. Considerable attention is devoted to the geometry of the Andoyer variables and to the modeling of control torques. We develop a new approach to Stabilization of rigid-body dynamics, an approach wherein the state-space model is formulated through sets of canonical elements that partially or completely reduce the unperturbed Euler-Poinsot problem. The controllability of the system model is examined using the notion of accessibility, and is shown to be accessible. Based on the accessibility proof, a Hamiltonian controller is derived by using the Hamiltonian as a natural Lyapunov function for the closed-loop dynamics. It is shown that the Hamiltonian controller is both passive and inverse optimal with respect to a meaningful performance-index. Finally, we point out the possibility to apply methods of structure-preserving control using the canonical Andoyer variables, and we illustrate this approach on rigid bodies containing internal rotors.

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