In this work we consider an infinite dimensional model of a large space structure with flexible elements. The control purpose consists of ensuring stability while performing large slew maneuvers. To this aim, a suitably accurate description of the nonlinear coupling between the rigid and the flexible motions of a spacecraft with flexible appendages is necessary. A control law from the state, ensuring global stabilization of the closed-loop solutions for any initial condition, is designed. Furthermore, considering the practical problems arising from the implementation of such a feedback, a control law from the output guaranteeing semiglobal stabilization, i.e., for any initial condition in a chosen region, is proposed. As opposite to the finite dimensional approach, which suffers the spillover effect, the proposed controllers ensure the asymptotic stabilization of all the modes.
Stabilization for continuum models of large space structures in large attitude maneuvers / DE SANTIS, Alberto; S., Di Gennaro. - In: EUROPEAN JOURNAL OF CONTROL. - ISSN 0947-3580. - 8:4(2002), pp. 361-372. [10.3166/ejc.8.361-372]
Stabilization for continuum models of large space structures in large attitude maneuvers
DE SANTIS, Alberto;
2002
Abstract
In this work we consider an infinite dimensional model of a large space structure with flexible elements. The control purpose consists of ensuring stability while performing large slew maneuvers. To this aim, a suitably accurate description of the nonlinear coupling between the rigid and the flexible motions of a spacecraft with flexible appendages is necessary. A control law from the state, ensuring global stabilization of the closed-loop solutions for any initial condition, is designed. Furthermore, considering the practical problems arising from the implementation of such a feedback, a control law from the output guaranteeing semiglobal stabilization, i.e., for any initial condition in a chosen region, is proposed. As opposite to the finite dimensional approach, which suffers the spillover effect, the proposed controllers ensure the asymptotic stabilization of all the modes.File | Dimensione | Formato | |
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