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Robust scheduled control of longitudinal flight with handling quality satisfaction

Saussié, David and Bérard, Caroline and Akhrif, Ouassima and Saydy, Lahcen Robust scheduled control of longitudinal flight with handling quality satisfaction. (2011) Aeronautical Journal, vol. 115 (n° 1165). pp. 163-174. ISSN 0001-9240

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Abstract

Classic flight control systems are still widely used in the industry because of acquired experience and good understanding of their structure. Nevertheless, with more stringent constraints, it becomes difficult to easily fulfil all the criteria with these classic control laws. On the other hand, modern methods can handle many constraints but fail to produce low order controllers. The following methodology proposed in this paper addresses both classic and modern flight control issues, to offer a solution that leverages the strengths of both approaches. First, an H∞ synthesis is performed in order to get controllers which satisfy handling qualities and are robust withrespect to mass and centre of gravity variations. These controllers are then reduced and structured by using robust modal control techniques. In conclusion, a self-scheduling technique is described that will schedule these controllers over the entire flight envelope.

Item Type:Article
Additional Information:Thanks to The Royal Aeronautical Society editor. The definitive version is available at http://www.raes.org.uk/
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:Other partners > Ecole Polytechnique de Montréal (CANADA)
Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE
Other partners > Université de Montréal - UdeM (CANADA)
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Deposited By:caroline bérard

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