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Dynamic modeling and analysis of spacecraft with variable tilt of flexible appendages

Guy, Nicolas and Alazard, Daniel and Cumer, Christelle and Charbonnel, Catherine Dynamic modeling and analysis of spacecraft with variable tilt of flexible appendages. (2014) Journal of Dynamic Systems Measurement and Control, 136 (2). ISSN 0022-0434

(Document in English)

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Official URL: http://dx.doi.org/10.1115/1.4025998


This article describes a general framework to generate linearized models of satellites with large flexible appendages. The obtained model is parametrized according to the tilt of flexible appendages and can be used to validate an attitude control system over a complete revolution of the appendage. Uncertainties on the characteristic parameters of each substructure can be easily considered by the proposed generic and systematic multibody modeling technique, leading to a minimal LFT model. The uncertainty block has a direct link with the physical parameters avoiding non-physical parametric configurations. This approach is illustrated to analyze the attitude control system of a spacecraft fitted with a tiltable flexible solar panel. A very simple root locus allows the stability of the closed-loop system to be characterized for a complete revolution of the solar panel.

Item Type:Article
HAL Id:hal-01920562
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE-SUPAERO (FRANCE)
French research institutions > Office National d'Etudes et Recherches Aérospatiales - ONERA (FRANCE)
Other partners > Thales (FRANCE)
Laboratory name:
Deposited On:03 Mar 2014 14:42

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