Robust and scheduled flight control with handling quality requirements

This paper deals with longitudinal flight control design for commercial aircraft. The control law is a fixed-structure C∗ law with five gain parameters to be tuned in order to fulfill a number of handling quality requirements. A method is put forth for finding whole regions of gains in the gain parameter space for each flight case. These regions have the property that any choice of the parameters is guaranteed to satisfy specific handling qualities. This paper puts forward a set of guidelines to use these parameter regions to address both the robustness of the control law and the gain scheduling issues. This has been applied to the full flight envelope and the robustness aspect is illustrated on a given flight case for a business jet aircraft.

[1]  Eyad H. Abed,et al.  Guardian maps and the generalized stability of parametrized families of matrices and polynomials , 1990, Math. Control. Signals Syst..

[2]  Ouassima Akhrif,et al.  Longitudinal flight control design with handling quality requirements , 2006 .

[3]  John Hodgkinson,et al.  Aircraft Handling Qualities , 1999 .

[4]  O. Akhrif,et al.  Flight control design with robustness and handling quality requirements , 2003, CCECE 2003 - Canadian Conference on Electrical and Computer Engineering. Toward a Caring and Humane Technology (Cat. No.03CH37436).

[5]  Ouassima Akhrif,et al.  Robustness augmentation of fixed structure flight control systems via mu , 2000 .

[6]  David G. Mitchell,et al.  Evolution, Revolution, and Challenges of Handling Qualities , 2004 .

[7]  Ouassima Akhrif,et al.  Handling quality characterization of flight systems controller gains , 2000, ICECS 2000. 7th IEEE International Conference on Electronics, Circuits and Systems (Cat. No.00EX445).