Abstract
On-off thrusters are frequently used as actuators for attitude control and are typically subject to switching constraints. In systems with switching actuators, different types of persistent motions may be found, and in the presence of model uncertainties, the occurrence of bifurcations in such systems can seriously affect performance. In this paper the nature of persistent motions in an attitude control system with actuators subject to switching-time restrictions is examined to provide useful information for control design in the presence of uncertainty. The main tools used are bifurcation diagrams, Poincaré maps and Lyapunov spectrum. Border-collision type bifurcations are characterized in this piecewise affine system, as well as unusual patterns of persistent motion. Multistability and complex-switching sequences are also observed, revealing the existence of motions with sensitive dependence on initial conditions.
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Mesquita, A., Rempel, E.L. & Kienitz, K.H. Bifurcation analysis of attitude control systems with switching-constrained actuators. Nonlinear Dyn 51, 207–216 (2008). https://doi.org/10.1007/s11071-007-9204-7
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DOI: https://doi.org/10.1007/s11071-007-9204-7