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Longitudinal flight control design with handling quality requirements

Published online by Cambridge University Press:  03 February 2016

D. Saussié ,
L. Saydy  and
O. Akhrif
D. Saussié
Affiliation:
Department of Electrical Engineering, École Polytechnique de Montréal, Montréal, Canada
L. Saydy
Affiliation:
Department of Electrical Engineering, École Polytechnique de Montréal, Montréal, Canada
O. Akhrif
Affiliation:
Department of Electrical Engineering, École de Technologie Supérieure, Montréal, Canada
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Abstract

This work presents a method for selecting the gain parameters of a C* control law for an aircraft’s longitudinal motion. The design incorporates various handling quality requirements involving modal, time- and frequency-domain criteria that were fixed by the aircraft manufacturer. After necessary model order-reductions, the design proceeds in essentially two-steps: stability augmentation system (SAS) loop design and control augmentation system (CAS) loop design. The approach partly relies on the use of guardian maps to characterise, in each case, the set of gain parameters for which desired handling quality requirements are satisfied. The approach is applied throughout the full flight envelope of a business jet aircraft and yields satisfactory results.

Type
Research Article
Information
The Aeronautical Journal , Volume 110 , Issue 1111 , September 2006 , pp. 627 - 637
Copyright
Copyright © Royal Aeronautical Society 2006 

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